bpo-40503: PEP 615: Tests and implementation for zoneinfo (GH-19909)
This is the initial implementation of PEP 615, the zoneinfo module, ported from the standalone reference implementation (see https://www.python.org/dev/peps/pep-0615/#reference-implementation for a link, which has a more detailed commit history). This includes (hopefully) all functional elements described in the PEP, but documentation is found in a separate PR. This includes: 1. A pure python implementation of the ZoneInfo class 2. A C accelerated implementation of the ZoneInfo class 3. Tests with 100% branch coverage for the Python code (though C code coverage is less than 100%). 4. A compile-time configuration option on Linux (though not on Windows) Differences from the reference implementation: - The module is arranged slightly differently: the accelerated module is `_zoneinfo` rather than `zoneinfo._czoneinfo`, which also necessitates some changes in the test support function. (Suggested by Victor Stinner and Steve Dower.) - The tests are arranged slightly differently and do not include the property tests. The tests live at test/test_zoneinfo/test_zoneinfo.py rather than test/test_zoneinfo.py or test/test_zoneinfo/__init__.py because we may do some refactoring in the future that would likely require this separation anyway; we may: - include the property tests - automatically run all the tests against both pure Python and C, rather than manually constructing C and Python test classes (similar to the way this works with test_datetime.py, which generates C and Python test cases from datetimetester.py). - This includes a compile-time configuration option on Linux (though not on Windows); added with much help from Thomas Wouters. - Integration into the CPython build system is obviously different from building a standalone zoneinfo module wheel. - This includes configuration to install the tzdata package as part of CI, though only on the coverage jobs. Introducing a PyPI dependency as part of the CI build was controversial, and this is seen as less of a major change, since the coverage jobs already depend on pip and PyPI. Additional changes that were introduced as part of this PR, most / all of which were backported to the reference implementation: - Fixed reference and memory leaks With much debugging help from Pablo Galindo - Added smoke tests ensuring that the C and Python modules are built The import machinery can be somewhat fragile, and the "seamlessly falls back to pure Python" nature of this module makes it so that a problem building the C extension or a failure to import the pure Python version might easily go unnoticed. - Adjustments to zoneinfo.__dir__ Suggested by Petr Viktorin. - Slight refactorings as suggested by Steve Dower. - Removed unnecessary if check on std_abbr Discovered this because of a missing line in branch coverage.
This commit is contained in:
Paul Ganssle
GitHub
parent
6e8cda91d9
commit
62972d9d73
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@ -48,6 +48,7 @@ jobs:
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./python -m venv .venv
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source ./.venv/bin/activate
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python -m pip install -U coverage
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python -m pip install -r Misc/requirements-test.txt
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python -m test.pythoninfo
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- name: 'Tests with coverage'
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run: >
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@ -87,6 +87,7 @@ matrix:
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# Need a venv that can parse covered code.
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- ./python -m venv venv
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- ./venv/bin/python -m pip install -U coverage
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- ./venv/bin/python -m pip install -r Misc/requirements-test.txt
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- ./venv/bin/python -m test.pythoninfo
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script:
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# Skip tests that re-run the entire test suite.
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@ -546,6 +546,7 @@ def get_config_vars(*args):
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if os.name == 'nt':
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_init_non_posix(_CONFIG_VARS)
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_CONFIG_VARS['TZPATH'] = ''
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if os.name == 'posix':
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_init_posix(_CONFIG_VARS)
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# For backward compatibility, see issue19555
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@ -0,0 +1 @@
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from .test_zoneinfo import *
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@ -0,0 +1,3 @@
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import unittest
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unittest.main('test.test_zoneinfo')
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@ -0,0 +1,76 @@
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import contextlib
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import functools
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import sys
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import threading
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import unittest
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from test.support import import_fresh_module
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OS_ENV_LOCK = threading.Lock()
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TZPATH_LOCK = threading.Lock()
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TZPATH_TEST_LOCK = threading.Lock()
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def call_once(f):
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"""Decorator that ensures a function is only ever called once."""
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lock = threading.Lock()
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cached = functools.lru_cache(None)(f)
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@functools.wraps(f)
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def inner():
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with lock:
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return cached()
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return inner
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@call_once
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def get_modules():
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"""Retrieve two copies of zoneinfo: pure Python and C accelerated.
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Because this function manipulates the import system in a way that might
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be fragile or do unexpected things if it is run many times, it uses a
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`call_once` decorator to ensure that this is only ever called exactly
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one time — in other words, when using this function you will only ever
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get one copy of each module rather than a fresh import each time.
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"""
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import zoneinfo as c_module
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py_module = import_fresh_module("zoneinfo", blocked=["_zoneinfo"])
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return py_module, c_module
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@contextlib.contextmanager
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def set_zoneinfo_module(module):
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"""Make sure sys.modules["zoneinfo"] refers to `module`.
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This is necessary because `pickle` will refuse to serialize
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an type calling itself `zoneinfo.ZoneInfo` unless `zoneinfo.ZoneInfo`
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refers to the same object.
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"""
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NOT_PRESENT = object()
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old_zoneinfo = sys.modules.get("zoneinfo", NOT_PRESENT)
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sys.modules["zoneinfo"] = module
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yield
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if old_zoneinfo is not NOT_PRESENT:
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sys.modules["zoneinfo"] = old_zoneinfo
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else: # pragma: nocover
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sys.modules.pop("zoneinfo")
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class ZoneInfoTestBase(unittest.TestCase):
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@classmethod
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def setUpClass(cls):
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cls.klass = cls.module.ZoneInfo
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super().setUpClass()
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@contextlib.contextmanager
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def tzpath_context(self, tzpath, lock=TZPATH_LOCK):
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with lock:
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old_path = self.module.TZPATH
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try:
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self.module.reset_tzpath(tzpath)
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yield
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finally:
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self.module.reset_tzpath(old_path)
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@ -0,0 +1,122 @@
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"""
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Script to automatically generate a JSON file containing time zone information.
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This is done to allow "pinning" a small subset of the tzdata in the tests,
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since we are testing properties of a file that may be subject to change. For
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example, the behavior in the far future of any given zone is likely to change,
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but "does this give the right answer for this file in 2040" is still an
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important property to test.
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This must be run from a computer with zoneinfo data installed.
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"""
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from __future__ import annotations
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import base64
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import functools
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import json
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import lzma
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import pathlib
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import textwrap
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import typing
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import zoneinfo
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KEYS = [
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"Africa/Abidjan",
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"Africa/Casablanca",
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"America/Los_Angeles",
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"America/Santiago",
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"Asia/Tokyo",
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"Australia/Sydney",
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"Europe/Dublin",
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"Europe/Lisbon",
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"Europe/London",
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"Pacific/Kiritimati",
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"UTC",
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]
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TEST_DATA_LOC = pathlib.Path(__file__).parent
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@functools.lru_cache(maxsize=None)
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def get_zoneinfo_path() -> pathlib.Path:
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"""Get the first zoneinfo directory on TZPATH containing the "UTC" zone."""
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key = "UTC"
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for path in map(pathlib.Path, zoneinfo.TZPATH):
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if (path / key).exists():
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return path
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else:
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raise OSError("Cannot find time zone data.")
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def get_zoneinfo_metadata() -> typing.Dict[str, str]:
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path = get_zoneinfo_path()
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tzdata_zi = path / "tzdata.zi"
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if not tzdata_zi.exists():
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# tzdata.zi is necessary to get the version information
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raise OSError("Time zone data does not include tzdata.zi.")
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with open(tzdata_zi, "r") as f:
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version_line = next(f)
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_, version = version_line.strip().rsplit(" ", 1)
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if (
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not version[0:4].isdigit()
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or len(version) < 5
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or not version[4:].isalpha()
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):
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raise ValueError(
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"Version string should be YYYYx, "
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+ "where YYYY is the year and x is a letter; "
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+ f"found: {version}"
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)
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return {"version": version}
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def get_zoneinfo(key: str) -> bytes:
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path = get_zoneinfo_path()
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with open(path / key, "rb") as f:
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return f.read()
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def encode_compressed(data: bytes) -> typing.List[str]:
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compressed_zone = lzma.compress(data)
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raw = base64.b85encode(compressed_zone)
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raw_data_str = raw.decode("utf-8")
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data_str = textwrap.wrap(raw_data_str, width=70)
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return data_str
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def load_compressed_keys() -> typing.Dict[str, typing.List[str]]:
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output = {key: encode_compressed(get_zoneinfo(key)) for key in KEYS}
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return output
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def update_test_data(fname: str = "zoneinfo_data.json") -> None:
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TEST_DATA_LOC.mkdir(exist_ok=True, parents=True)
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# Annotation required: https://github.com/python/mypy/issues/8772
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json_kwargs: typing.Dict[str, typing.Any] = dict(
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indent=2, sort_keys=True,
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)
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compressed_keys = load_compressed_keys()
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metadata = get_zoneinfo_metadata()
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output = {
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"metadata": metadata,
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"data": compressed_keys,
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}
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with open(TEST_DATA_LOC / fname, "w") as f:
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json.dump(output, f, **json_kwargs)
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if __name__ == "__main__":
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update_test_data()
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@ -0,0 +1,190 @@
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{
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"data": {
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"Africa/Abidjan": [
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"{Wp48S^xk9=GL@E0stWa761SMbT8$j-~f{VGF<>F7KxBg5R*{Ksocg8-YYVul=v7vZzaHN",
|
||||
"uC=da5UI2rH18c!OnjV{y4u(+A!!VBKmY&$ORw>7UO^(500B;v0RR91bXh%WvBYQl0ssI2",
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"00dcD"
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],
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"Africa/Casablanca": [
|
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"{Wp48S^xk9=GL@E0stWa761SMbT8$j;0b&Kz+C_;7KxBg5R*{N&yjMUR~;C-fDaSOU;q-~",
|
||||
"FqW+4{YBjbcw}`a!dW>b)R2-0a+uwf`P3{_Y@HuCz}S$J$ZJ>R_V<~|Fk>sgX4=%0vUrh-",
|
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"lt@YP^Wrus;j?`Th#xRPzf<<~Hp4DH^gZX>d{+WOp~HNu8!{uWu}&XphAd{j1;rB4|9?R!",
|
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"pqruAFUMt8#*WcrVS{;kLlY(cJRV$w?d2car%R<ALOSO?^`4;ZZtI)%f^^G^>s>q9BgTU4",
|
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"Ht-tQKZ7Z`9QqOb?R#b%z?rk>!CkH7jy3wja4NG2q)H}fNRKg8v{);Em;K3Cncf4C6&Oaj",
|
||||
"V+DbX%o4+)CV3+e!Lm6dutu(0BQpH1T?W(~cQtKV*^_Pdx!LirjpTs?Bmt@vktjLq4;)O!",
|
||||
"rrly=c*rwTwMJFd0I57`hgkc?=nyI4RZf9W$6DCWugmf&)wk^tWH17owj=#PGH7Xv-?9$j",
|
||||
"njwDlkOE+BFNR9YXEmBpO;rqEw=e2IR-8^(W;8ma?M3JVd($2T>IW+0tk|Gm8>ftukRQ9J",
|
||||
"8k3brzqMnVyjsLI-CKneFa)Lxvp_a<CkQEd#(pMA^rr}rBNElGA=*!M)puBdoErR9{kWL@",
|
||||
"w=svMc6eZ^-(vQZrV<u^PY#nOIUDJ8%A&;BUVlY9=;@i2j2J1_`P>q40f}0J3VVoWL5rox",
|
||||
"`Kptivcp}o5xA^@>qNI%?zo=Yj4AMV?kbAA)j(1%)+Pp)bSn+7Yk`M{oE}L-Z!G6<Dgq&*",
|
||||
"(C-mFJfbEGDH5M^vBr65rcnsx*~|Em_GeU#B)(+T!|MG-nxj0@IPbp-nHejH3~>OMr5G+h",
|
||||
"p)$3Lg{ono{4cN>Vr&>L4kXH;_VnBL5U!LgzqE%P7QQ*<E!guRW2SE@ayq@)G2nXqA2tGo",
|
||||
"QIgc6>tue}O`3(TZ0`aKn&~8trOQ-rBXCp)f@P6RMO4l0+;b|5-pk9_ryNh}Zc*v%mvz_#",
|
||||
"yd<xXt%~gT90dn4e{Ac<baL-)Y{L7&5G($I$>6fjB0g9{MmMnu8bG%#C~ugXK^S^k@?ab#",
|
||||
"O|aE>dDTt4s4n69(~@t~!wniV%g<uWQat_i6>7khFx~I*4>Y|V$4j5%KPF*-FyKIi@!Ho&",
|
||||
"x8QQsksYt8)D+W)Ni!=G`ogSu^vLL-l#7A7=iIAKL2SuZk9F}NfNk86VI)9WZE?%2wC-ya",
|
||||
"F~z#Qsq)LH0|_D8^5fU8X%GeQ4TB>R-dlziA&tZe&1ada208!$nk`7bOFO2S00G<w{Sp8G",
|
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"{cR_IvBYQl0ssI200dcD"
|
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],
|
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"America/Los_Angeles": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j;0qH3OkDsf7KxBg5R*;z{h&-RlhRYu$%jt%!jv+I",
|
||||
"JxhE=%W1?wYb!37Rb?(rgwFIAQI{L#8r*zy!$TMtER_1(vn(Zix^{AVB1(jwr$iL6h0Z!2",
|
||||
"8Gb~UW@0~e512{Z%8}Qzdnjl~wJ1{c2>`Z@1A~t&lyL{p{eM{5)QGf7Mo5FW9==mlyXJt2",
|
||||
"UwpntR7H0eSq!(aYq#aqUz&RM*tvuMI)AsM?K3-dV3-TT{t)!Iy#JTo=tXkzAM9~j2YbiO",
|
||||
"ls3(H8Dc>Y|D1aqL51vjLbpYG;GvGTQB4bXuJ%mA;(B4eUpu$$@zv2vVcq-Y)VKbzp^tei",
|
||||
"uzy}R{Luv<C;_cPe*n$Z<jeC9ogWF9=1mvvUYXS>DjpuVb`79O+CBmg{Wx!bvx$eu4zRE&",
|
||||
"PehMb=&G<9$>iZ|bFE)0=4I?KLFGBC0I(0_svgw0%FiMsT%koo*!nEYc6GY@QnU}&4Isg;",
|
||||
"l=|khi(!VaiSE2=Ny`&&tpi~~;{$u<GHlsr3Ze!iYsU205RFKsLnrXwOL?Mq08xffgS{6h",
|
||||
"E|figx+&N%wbO}re@|}$l;g_6J-Wl%j|qev8A<T?NJ)`;2neGi_DHE4ET*W!c*ggPAgU+L",
|
||||
"E9=bH7;maCUikw^R)UM;TdVvNkQ;FGgN=yQER`SZ1nOgPXr0LCebLety&}kVdmVmB=8eSg",
|
||||
"td!1%p=a2wooIL!Da}OPXvKBfRo?YxqS>N}%f|7mBhAy;<Er2&_LfND#qXN~Mkgf!@4VFA",
|
||||
"Hr%$c)wrKA2cJYWK2>s3YT^sy!$eG~?`9mNJC9@4Bac_p^BZh)Yd_rWW5qh-?tKY(>5VHO",
|
||||
"L*iT8P@wCavLj^yYbnDR+4ukhS+xPrpl)iqB?u)bj9a2aW==g6G3lCJd>(+Blf<d4CF%7u",
|
||||
"tlBUDki}J-!_Dy}5S(MrxSXy~$Z+hgH3P^<<w7D72L7I-R%H3(xm&q_DXxkp$owLTS6Wzk",
|
||||
"hc3nn;laROa3)6hl&gH#)2Lif8fZe$@CdeJ-Zn&*>r)~^40F4f>cRZ^UF;RibfZ>0m73hR",
|
||||
"C{$vTfC(STN`g7(B<=Z2556{}0`?p&|Akkst!4Xy4OT;A@c$XTUI3FRRjy*KA7uC56FD)z",
|
||||
"^X{WV*sr(w!c$W357o!&eLO2wTDNOyw@gf(&R<<LF_3URI4=Ei`-%dM3T66j#9!aG7&b_@",
|
||||
"g1-9vo?DzXZ5vGaf~w__p_@_X?OdvQ_r5bvy2hpESTf+{p?jL+!~!{g8-<-5$@d8EZV&-5",
|
||||
"@a|;^1gB*R-~{EHFA-td_G2bt;~Y}>t;=-Tu1TV{>%8ZVATC9tjD8|(&`$9YHvZ9bVe#>w",
|
||||
"|8c;Tg|xE&)`*}LwM*E}q}q8^Qja%p`_U)*5DdLI9O@!e=3jFjOCrCq28b_bb;s>%D#iJB",
|
||||
"CWJi{JH!Js;6nfayos$kq^OEX00HO-lokL0!mqm{vBYQl0ssI200dcD"
|
||||
],
|
||||
"America/Santiago": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j;0fRZ<6QtM7KxBg84(fsEAUJ$J{f-TXlPEUec5Ee",
|
||||
"n+hsD4lC(QYax=JdSpoyje8%VM`GW}<Unz6IOY4=y66tfqG2X4E8xIJQ(~?r{`L~T!sI~o",
|
||||
"VBl7Ao!R1A76Y8P6Y<TfwVHf@sl@S-D4OuAy5mq0MKJZ>{bJ8@y$A8O&*$pw{(f~Os#}2w",
|
||||
"eX6^Rgi$IT%n^V^85L>$_c7{cB^#ogV=rHBJGiz-RQNFGK?gdPi|q)j`&8)}KJ{qo6dixa",
|
||||
"9@yYyVg+%lo0nO+Tw0-w2hJ%mafy<Co(;L+24CYl&?rN0mrh90nxG?%1&Ed@za`Yd>WL)|",
|
||||
")<o0dZL-*?RFtH7dAv%G*O%l?qvq!0F5C?K#_ZoT{P$77IMoj3&8w3f&n36zquu~s`s0T)",
|
||||
";>?W6Bi%FWuGPA1Dru$XR4SZANsAthU2EoKH<MU4wYvUTlZGcLIDR+hSik>F6oEtKq`rwP",
|
||||
"(VNegnI_NI%;ma$)wj{k!@KFB30Yo)IOr<QX7IQ@TBq9d;e3QAtYU?$PS-WoaiqwFrg4PR",
|
||||
"A->l>)$)D|+(5h&+%2vuwGuy^@S8FT^s21V5};>VA9Iu;?8bHz#r<;JtfZDI1(FT@edh0#",
|
||||
"MYW$A1qkMGIwTZqqdYNE3gl#zp&NbL9Mp=voqN|;?gqR&4$)1`znddtEyuKS*^nMMD=0^>",
|
||||
"7^z6-C4P67UWOXuMBubP>j6i~03aR@jD^-Y`JSYu#Yp0P8dLLJ0QOPE8=BoiuRX59YW7xg",
|
||||
"WiexjHX%&0?`ZQCdxCdL^qd1v@kOjQKaWo2Y1++~LcA%FTq?5o<?(jL(_Uo}I}k_Fwflcr",
|
||||
"aovwSR_(ILA6li<iBLPQ0#rEet;W-*54kj#sZEGK*tAF{)HNkn#&Hc5`#eaRF;N#$<xQU?",
|
||||
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|
||||
"NM$^9znsIJMwlgscE`|O3|;BRgsQMYm~`uv+nvuv`nigRa}X=BX=A5Sw$)WEklF7&c>_~$",
|
||||
"zJ(m--bqXgiN^w-U=BJH9C0Qro(x90zo@rK;&TJ$nI@&k$ORgOb2<MjjIhYfr;pFUGdMd!",
|
||||
"0d&bOvyq3AZPCez8E(XSg2hBu2A&^k?w|1u8v3JE>s%gWbc}ok_27)Eoku~Fq|B-Ps+4J_",
|
||||
"HPJMLJ2^_)cOU$p&3kNAlrV!)%~6r$BJ>OOi~=-<6byle{?zd4J{NG}o8tw|+#ZNLcpNwk",
|
||||
"TuPE~sbJB8_RZb2DopStO+Wwux~F#S59zm%00I98;S&G=b(j+6vBYQl0ssI200dcD"
|
||||
],
|
||||
"Asia/Tokyo": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j-~luMgIxeB7KxBg5R*;y?l4Rl4neXH3cv!OtfK@h",
|
||||
"KZzauI)S!FSDREPhhBS6Fb$&Vv#7%;?Te|>pF^0HBr&z_Tk<%vMW_QqjevRZOp8XVFgP<8",
|
||||
"TkT#`9H&0Ua;gT1#rZLV0HqbAKK;_z@nO;6t0L<i8TZ+%T<;ci2bYSG1u!mUSO5S3XcbN8",
|
||||
"dIxbZ00Ex?wE_SDJu@vkvBYQl0ssI200dcD"
|
||||
],
|
||||
"Australia/Sydney": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j;0T)o7+nA=7KxBg5R*_t6jS5T`_Ull(nK1_YY;k%",
|
||||
";_YdTuU3*!K)eKg@^kzjAtbo@Jd|KGai=Q%%sX5FI?*?LG!|m9cKH5~IEwI=PAr_Yc}w35",
|
||||
">}hOdk<>TdUa07R(LPI6@!GU$ty4=mwqHG-XVe*n(Yvgdlr+FqIU18!osi)48t~eWX8)&L",
|
||||
"G)Ud^0zz@*AF+2r7E}N<P$kOfo*88g)_bOO?7N1Jr|HJyg+HXc7f4}?%Dur3w|~JU?<x4K",
|
||||
"%RRC~q_D87;UyN{nLRu!fEqKeRR*U$vs>f9Y72K~o-T%}D&z%}#7g<qim`EbfhF7ntyAiP",
|
||||
"%LFNc&!$@Kv)Olyf&Y9%(#SkM+%yI}S%b+@ZM2dH7DpmndGMIda<(`#E9q|?H(HzClx+l;",
|
||||
"M?IEz1eF}r?}ay!V9?9rKD^-ayjE@wUMD$2kC!iwH`n=eVrJPmJyNKaW`LdJ68&u;2nF1K",
|
||||
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|
||||
"_4uM#!%%Q1e1G~{E}~vGVE0{Kxecm^NjtJM`c8EFHFTiUIVl@YUD8F+s!u8jz~6hte@oa|",
|
||||
"qayb*^Lwd(etNmBro;aXQjkY8g(*`_JQ0%{V3QP2l!GGQ7D+v&k_PK0F(?f{GziU5>OZeN",
|
||||
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|
||||
"^;Laa9F(WB_O&Dy2r>~@kSi16W{=6+i5GV=Uq~KX*~&HUN4oz7*O(gXIr}sDVcD`Ikgw#|",
|
||||
"50ssal8s)Qy;?YGCf;*UKKKN!T4!Kqy_G;7<gSrPK{)5#a>PfQapugqvVBKy12v3TVH^L2",
|
||||
"0?#5*VP~MOYfe$h`*L!7@tiW|_^X1N%<}`7YahiUYtMu5XwmOf3?dr+@zXHwW`z}ZDqZlT",
|
||||
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|
||||
"Mdv&xvBYQl0ssI200dcD"
|
||||
],
|
||||
"Europe/Dublin": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j;0>b$_+0=h7KxBg5R*;&J77#T_U2R5sleVWFDmK~",
|
||||
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|
||||
"v&f1s9IH#g$m1k1a#3+lylw4mwT4QnEUUQdwg+xnEcBlgu31bAVabn41OMZVLGz6NDwG%X",
|
||||
"uQar!b>GI{qSahE`AG}$kRWbuI~JCt;38)Xwbb~Qggs55t+MAHIxgDxzTJ;2xXx99+qCy4",
|
||||
"45kC#v_l8fx|G&jlVvaciR<-wwf22l%4(t@S6tnX39#_K(4S0fu$FUs$isu<UOJYm|4)2i",
|
||||
"aEpsajn@}B#rnY=Cg_TXsm-A)*adXV&$klNTn3n{XXlaquu}6m{k%oRmY0Yyhlj*<W{D5m",
|
||||
"22}OiqnwHT!tnK`wPqx?wiF%v{ipTrOkcJ5P@7OC4(-l`*&SB$Wd4Vf8gn?>d<i@%mP*e*",
|
||||
"ttDj`9M1;9$YV@dhT)DVcwdq(Ly~KDm_&KL?{_mFwwYtJqRZBk)i1FVQy!40w_KyAg?hIA",
|
||||
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||||
"GctAh2nIo~fz%$m$I41=b_WuJ6M9g#A9_Epwqw{d0B|vzmg#_y<=_>9IKzCXB<o`d)**5V",
|
||||
"6g!<<Jw1n5TrN-$)aYz4cLsTmpsUf-6L7ix+kk>78NkARYq@9Dc0TGkhz);NtM_SSzEffN",
|
||||
"l{2^*CKGdp52h!52A)6q9fUSltXF{T*Ehc9Q7u8!W7pE(Fv$D$cKUAt6wY=DA1mGgxC*VX",
|
||||
"q_If3G#FY6-Voj`fIKk`0}Cc72_SD{v>468LV{pyBI33^p0E?}RwDA6Pkq--C~0jF&Z@Pv",
|
||||
"!dx_1SN_)jwz@P$(oK%P!Tk9?fRjK88yxhxlcFtTjjZ$DYssSsa#ufYrR+}}nKS+r384o~",
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||||
"!Uw$nwTbF~qgRsgr0N#d@KIinx%<pnyQ!|>hQB(SJyjJtDtIy(%mDm}ZBGN}dV6K~om|=U",
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||||
"VGkbciQ=^$_14|gT21!YQ)@y*Rd0i_lS6gtPBE9+ah%WIJPwzUTjIr+J1XckkmA!6WE16%",
|
||||
"CVAl{Dn&-)=G$Bjh?bh0$Xt1UDcgXJjXzzojuw0>paV~?Sa`VN3FysqF<S*L0RYSAY3jt(",
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||||
"8wCD04RfyEcP(RNT%x7k(7m-9H3{zuQ`RZy-Rz%*&dldDVFF+TwSAPO1wRX^5W5@xJ9{vW",
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||||
"w?rc^NH({%Ie<rxKqSVy!Le-_`U&@W_(D+>xTzfKVAu*ucq#+m=|KSSMvp_#@-lwd+q*ue",
|
||||
"FQ^5<D+|jLr?k{O39i8AX2Qb^zi9A<7XD1y!-W2|0Hk8JVkN;gl><|<0R-u4qYMbRqzSn&",
|
||||
"Q7jSuvc%b+EZc%>nI(+&0Tl1Y>a6v4`uNFD-7$QrhHgS7Wnv~rDgfH;rQw3+m`LJxoM4v#",
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||||
"gK@?|B{RHJ*VxZgk#!p<_&-sjxOda0YaiJ1UnG41VPv(Et%ElzKRMcO$AfgU+Xnwg5p2_+",
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||||
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|
||||
"fJ?;_U;D|^>5by2ul@i4Zf()InfFN}00EQ=q#FPL>RM>svBYQl0ssI200dcD"
|
||||
],
|
||||
"Europe/Lisbon": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j;0=rf*IfWA7KxBg5R*;*X|PN+G3LqthM?xgkNUN_",
|
||||
")gCt1Sc%YT6^TTomk4yVHXeyvQj8}l<;q&s7K}#Vnc8lII1?)AHh$*>OKUU4S;*h>v*ep0",
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||||
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||||
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||||
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||||
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|
||||
")D0!^DBGr8pXWBT$S-yhLP>Z3ys^VW<kSQr?{jhl<+{Fki;mTI=&Stgy$rttN?ulQM$lDr",
|
||||
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|
||||
"+gRRm6Wn)VWVNHeK*TEV=f#2KZqu%y?mTx#EfRiK0)TG7$$~=LGxx@0D|lS2up|oCON{YQ",
|
||||
"oN5-H$!_n-Kx2*=RO!epEX>3}RQ6{NGGVJG6vf*MH93vvNW6yLjie1;{4tVhg-KnSf|G`!",
|
||||
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|
||||
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|
||||
"*Ty*}1d41K>H2B{jrjE9aFK>yAQJBX9CD%-384S;0fw`PlprHGS`^b$oS-`I4VH7ji8ou-",
|
||||
"g|060jfb1XcxiInT0oO<S+<vh^)XY;lr@|IeXj}%k;}|kSlDGaYidk^zB|gEYaet~F%QYd",
|
||||
"f7pbnQKLZ0o7=kso86doS;J@aQ>oeR7#%e5Ug5#KW)nV<Rc;|LjUDdhk8*dYJQwYN?hzH%",
|
||||
"0<XB$!(rpf2nxaL22M`L4pKx>SRvLHNe$SQHM@2)`S9L7>RL@<XAlxVQfb2=%lcu!h+Um0",
|
||||
"Q+Z=itevTFy}-Jl<g5crK55BF`VsoPH~qP3QrG%YtrD#s{=gA7p)QI<i=EwY(cel8`B=#u",
|
||||
"Yq<K;4T(QBF_GvrYueSk*}gfrCSg22+YH-1N<WYkp|DA-P-&va<Xu<}^yafJKlzezB-lS{",
|
||||
"a++P_^gYmgrc9FO-K3s~`jAcqVV!k?NV2IFV^86`cr>Qx%fmm7?3u7P5TywFQ}C@S(pq}|",
|
||||
"eLPT{C^{<0Q?uU&kSVd%!~8q3;Z0s3OqzF`$HRkePL5Ywgiwn{R(<RY8ut&RJ;$?J*w*n)",
|
||||
">zi+jmOBFrVpW;)@UsU#%$8BcV#h@}m$#!Fglo&bwb78aYqOG_W7h{eb(+39&-mk4EIXq_",
|
||||
"_`30=8sfA3=!3TO_TyS5X22~?6nKngZ|bq=grdq=9X)3xAkA42L!~rmS)n3w-~;lgz%Fhn",
|
||||
"(?rXdp2ho~9?wmVs2JwVt~?@FVD%`tN69{(i3oQa;O0<Hp#T5?$WIy3h`IlL00Hv}jT-;}",
|
||||
"Z2tpNvBYQl0ssI200dcD"
|
||||
],
|
||||
"Europe/London": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j;0`|pJ6!-O7KxBg5R*;$9DqzW!kQs3DZt(=0_!m1",
|
||||
"4wvE`6N%Vj#u6PS_3S?~(2)&xn8}2}3Wr#kG8n2!x8>$E$lF&~Y#_H6bu6(BiwblJ>;-Fs",
|
||||
"gA$Y$*?=X)n1pFkKn}F~`>=4)+LLQk?L*P!bhAm0;`N~z3QbUIyVrm%kOZ(n1JJsm0pyb8",
|
||||
"!GV{d*C!9KXv;4v<seWRpo=ZZxGf)-5Qsn$3dw`uhF)+6#mgUoNF-Y2jN73pVhdTs*p0`Z",
|
||||
"AbnT1puEtudB{Nul>D4Q>-k#+x(!V5L@w5M>v2V5<gcLskF+p`aGTSn{sY8^@MUc;2o{&V",
|
||||
"R!$180N}BtfYKS)i9w=!<~&l?1Cv^PWs!&a9{s(35^yqGU$72DKX|IkRtDblB>a`B>t(|B",
|
||||
"|Fqr4^-{S*%Ep~ojUtx_CRbSQ(uFwu2=KH)Q@EBs@ZqRXn4mU;B!68;;IQs3Ub=n&UU%*m",
|
||||
"k&zwD36&JSwsN(%k&x?H+tN^6)23c`I0=5^N_R0~1>tsFZ`^`3z~rXSXT&qcwa#n!%+Z#P",
|
||||
"PG}(D^_CCILXnF|GKwabBh*xFS?4rwGo2vtJUwzrbv_$5PO+`?$l{H-jGB@X%S!OAhw;D4",
|
||||
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|
||||
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|
||||
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|
||||
"xx9nj<vMlEt*KfP*pyth!c_AKnrKtQTACX08#{pioAFnDq!53+h*hO^f*yrWjg0u2pUcgv",
|
||||
"UlpEZ9G_dlhlW1J^h@gTt7{KPL2mRal;1juJ3Q8-!GXO#IPzT4ciJ-nB+nkphssM}Q7IAT",
|
||||
"pM}AT%y(J!78F?>kYaH7?$$O!t)wwClAisr3eUoeB^~T=U*_P~Y2*KdnO87>B!19sV=xZ5",
|
||||
"yApq26RxgqA|*tmsvtL#OhcF(C<0EGWHP)BF<g*iSWicU6k1<Ps?BQ$IWg-#s2uF-qXgJ_",
|
||||
"!H_mZIMx*L%&a*_6;_trMCULk0ZYM<hfJlYBddHwRyYUDu3!C_lJZWTQ?c-R&@9054pj0k",
|
||||
"kQ{Xi{A$&)&b#^G*}8w^qE5i<@aDxaJQs2E$W)AIqUXO{gQ;U8|FA%BD~sORzq44)AntUu",
|
||||
"QHBO{{Pi<EpK!$x4(~7w)la!dN=M@L_j};6|5G&QfuO~2?Q7996z)78fqW<D#8tKNV(*qc",
|
||||
"mfA>l?h)_*7!{LoJiv%RsOs!q->n+DcV%9~B@Rb<ISu%16c5H-7zQIq+SuS+s<lQOWK5+C",
|
||||
"d*>C_1G_1g6`Yd~8|%-=2l~oGN!~TVv2Bnk>7wW8L@^?vX$f3AiT)(4nrCuTm9%(XC6Nai",
|
||||
"E(;}7&=YZagjAN$O-cN;1u{dTkElmB0GT$|Wa)QMmKrx<|LCJ9qlUoFsUbD^H^6_8(w<0{",
|
||||
"ftj&O1~p_%lh5z;zNV&sP<T$*OgK)_0B#JDtXOkhC;Bo7h)#RUy;vBiVLN-T$*7t*t9@ey",
|
||||
"3Woa&24QZ_z38BQ@A(A<(9n@%R?}B`7%w2wowt~UU;bAlqCzr(H$M5t==jGIqMqCsE=Jwa",
|
||||
"$3P+3^&|~i28@=d_u6Cgthe(Lq(wxKpdSDL|7X6Un<nrt00Gwuz#ISo`BbmvvBYQl0ssI2",
|
||||
"00dcD"
|
||||
],
|
||||
"Pacific/Kiritimati": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j-~jCaVO;<!7KxBg5R*{K!`A|q%C5j6({{dSEy5>+",
|
||||
"NF2>iK{8KMUf+)<-)VxXbLxD(alL}N$AT-ogNbJSMMYeX+Z{jS)b8TK^PB=FxyBxzfmFto",
|
||||
"eo0R`a(%NO?#aEH9|?Cv00000NIsFh6BW2800DjO0RR918Pu^`vBYQl0ssI200dcD"
|
||||
],
|
||||
"UTC": [
|
||||
"{Wp48S^xk9=GL@E0stWa761SMbT8$j-~e#|9bEt_7KxBg5R*|3h1|xhHLji!C57qW6L*|H",
|
||||
"pEErm00000ygu;I+>V)?00B92fhY-(AGY&-0RR9100dcD"
|
||||
]
|
||||
},
|
||||
"metadata": {
|
||||
"version": "2020a"
|
||||
}
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,29 @@
|
|||
__all__ = [
|
||||
"ZoneInfo",
|
||||
"reset_tzpath",
|
||||
"TZPATH",
|
||||
"ZoneInfoNotFoundError",
|
||||
"InvalidTZPathWarning",
|
||||
]
|
||||
|
||||
from . import _tzpath
|
||||
from ._common import ZoneInfoNotFoundError
|
||||
|
||||
try:
|
||||
from _zoneinfo import ZoneInfo
|
||||
except ImportError: # pragma: nocover
|
||||
from ._zoneinfo import ZoneInfo
|
||||
|
||||
reset_tzpath = _tzpath.reset_tzpath
|
||||
InvalidTZPathWarning = _tzpath.InvalidTZPathWarning
|
||||
|
||||
|
||||
def __getattr__(name):
|
||||
if name == "TZPATH":
|
||||
return _tzpath.TZPATH
|
||||
else:
|
||||
raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
|
||||
|
||||
|
||||
def __dir__():
|
||||
return sorted(list(globals()) + ["TZPATH"])
|
||||
|
|
@ -0,0 +1,166 @@
|
|||
import struct
|
||||
|
||||
|
||||
def load_tzdata(key):
|
||||
import importlib.resources
|
||||
|
||||
components = key.split("/")
|
||||
package_name = ".".join(["tzdata.zoneinfo"] + components[:-1])
|
||||
resource_name = components[-1]
|
||||
|
||||
try:
|
||||
return importlib.resources.open_binary(package_name, resource_name)
|
||||
except (ImportError, FileNotFoundError, UnicodeEncodeError):
|
||||
# There are three types of exception that can be raised that all amount
|
||||
# to "we cannot find this key":
|
||||
#
|
||||
# ImportError: If package_name doesn't exist (e.g. if tzdata is not
|
||||
# installed, or if there's an error in the folder name like
|
||||
# Amrica/New_York)
|
||||
# FileNotFoundError: If resource_name doesn't exist in the package
|
||||
# (e.g. Europe/Krasnoy)
|
||||
# UnicodeEncodeError: If package_name or resource_name are not UTF-8,
|
||||
# such as keys containing a surrogate character.
|
||||
raise ZoneInfoNotFoundError(f"No time zone found with key {key}")
|
||||
|
||||
|
||||
def load_data(fobj):
|
||||
header = _TZifHeader.from_file(fobj)
|
||||
|
||||
if header.version == 1:
|
||||
time_size = 4
|
||||
time_type = "l"
|
||||
else:
|
||||
# Version 2+ has 64-bit integer transition times
|
||||
time_size = 8
|
||||
time_type = "q"
|
||||
|
||||
# Version 2+ also starts with a Version 1 header and data, which
|
||||
# we need to skip now
|
||||
skip_bytes = (
|
||||
header.timecnt * 5 # Transition times and types
|
||||
+ header.typecnt * 6 # Local time type records
|
||||
+ header.charcnt # Time zone designations
|
||||
+ header.leapcnt * 8 # Leap second records
|
||||
+ header.isstdcnt # Standard/wall indicators
|
||||
+ header.isutcnt # UT/local indicators
|
||||
)
|
||||
|
||||
fobj.seek(skip_bytes, 1)
|
||||
|
||||
# Now we need to read the second header, which is not the same
|
||||
# as the first
|
||||
header = _TZifHeader.from_file(fobj)
|
||||
|
||||
typecnt = header.typecnt
|
||||
timecnt = header.timecnt
|
||||
charcnt = header.charcnt
|
||||
|
||||
# The data portion starts with timecnt transitions and indices
|
||||
if timecnt:
|
||||
trans_list_utc = struct.unpack(
|
||||
f">{timecnt}{time_type}", fobj.read(timecnt * time_size)
|
||||
)
|
||||
trans_idx = struct.unpack(f">{timecnt}B", fobj.read(timecnt))
|
||||
else:
|
||||
trans_list_utc = ()
|
||||
trans_idx = ()
|
||||
|
||||
# Read the ttinfo struct, (utoff, isdst, abbrind)
|
||||
if typecnt:
|
||||
utcoff, isdst, abbrind = zip(
|
||||
*(struct.unpack(">lbb", fobj.read(6)) for i in range(typecnt))
|
||||
)
|
||||
else:
|
||||
utcoff = ()
|
||||
isdst = ()
|
||||
abbrind = ()
|
||||
|
||||
# Now read the abbreviations. They are null-terminated strings, indexed
|
||||
# not by position in the array but by position in the unsplit
|
||||
# abbreviation string. I suppose this makes more sense in C, which uses
|
||||
# null to terminate the strings, but it's inconvenient here...
|
||||
char_total = 0
|
||||
abbr_vals = {}
|
||||
abbr_chars = fobj.read(charcnt)
|
||||
|
||||
def get_abbr(idx):
|
||||
# Gets a string starting at idx and running until the next \x00
|
||||
#
|
||||
# We cannot pre-populate abbr_vals by splitting on \x00 because there
|
||||
# are some zones that use subsets of longer abbreviations, like so:
|
||||
#
|
||||
# LMT\x00AHST\x00HDT\x00
|
||||
#
|
||||
# Where the idx to abbr mapping should be:
|
||||
#
|
||||
# {0: "LMT", 4: "AHST", 5: "HST", 9: "HDT"}
|
||||
if idx not in abbr_vals:
|
||||
span_end = abbr_chars.find(b"\x00", idx)
|
||||
abbr_vals[idx] = abbr_chars[idx:span_end].decode()
|
||||
|
||||
return abbr_vals[idx]
|
||||
|
||||
abbr = tuple(get_abbr(idx) for idx in abbrind)
|
||||
|
||||
# The remainder of the file consists of leap seconds (currently unused) and
|
||||
# the standard/wall and ut/local indicators, which are metadata we don't need.
|
||||
# In version 2 files, we need to skip the unnecessary data to get at the TZ string:
|
||||
if header.version >= 2:
|
||||
# Each leap second record has size (time_size + 4)
|
||||
skip_bytes = header.isutcnt + header.isstdcnt + header.leapcnt * 12
|
||||
fobj.seek(skip_bytes, 1)
|
||||
|
||||
c = fobj.read(1) # Should be \n
|
||||
assert c == b"\n", c
|
||||
|
||||
tz_bytes = b""
|
||||
while (c := fobj.read(1)) != b"\n":
|
||||
tz_bytes += c
|
||||
|
||||
tz_str = tz_bytes
|
||||
else:
|
||||
tz_str = None
|
||||
|
||||
return trans_idx, trans_list_utc, utcoff, isdst, abbr, tz_str
|
||||
|
||||
|
||||
class _TZifHeader:
|
||||
__slots__ = [
|
||||
"version",
|
||||
"isutcnt",
|
||||
"isstdcnt",
|
||||
"leapcnt",
|
||||
"timecnt",
|
||||
"typecnt",
|
||||
"charcnt",
|
||||
]
|
||||
|
||||
def __init__(self, *args):
|
||||
assert len(self.__slots__) == len(args)
|
||||
for attr, val in zip(self.__slots__, args):
|
||||
setattr(self, attr, val)
|
||||
|
||||
@classmethod
|
||||
def from_file(cls, stream):
|
||||
# The header starts with a 4-byte "magic" value
|
||||
if stream.read(4) != b"TZif":
|
||||
raise ValueError("Invalid TZif file: magic not found")
|
||||
|
||||
_version = stream.read(1)
|
||||
if _version == b"\x00":
|
||||
version = 1
|
||||
else:
|
||||
version = int(_version)
|
||||
stream.read(15)
|
||||
|
||||
args = (version,)
|
||||
|
||||
# Slots are defined in the order that the bytes are arranged
|
||||
args = args + struct.unpack(">6l", stream.read(24))
|
||||
|
||||
return cls(*args)
|
||||
|
||||
|
||||
class ZoneInfoNotFoundError(KeyError):
|
||||
"""Exception raised when a ZoneInfo key is not found."""
|
||||
|
|
@ -0,0 +1,110 @@
|
|||
import os
|
||||
import sys
|
||||
import sysconfig
|
||||
|
||||
|
||||
def reset_tzpath(to=None):
|
||||
global TZPATH
|
||||
|
||||
tzpaths = to
|
||||
if tzpaths is not None:
|
||||
if isinstance(tzpaths, (str, bytes)):
|
||||
raise TypeError(
|
||||
f"tzpaths must be a list or tuple, "
|
||||
+ f"not {type(tzpaths)}: {tzpaths!r}"
|
||||
)
|
||||
elif not all(map(os.path.isabs, tzpaths)):
|
||||
raise ValueError(_get_invalid_paths_message(tzpaths))
|
||||
base_tzpath = tzpaths
|
||||
else:
|
||||
env_var = os.environ.get("PYTHONTZPATH", None)
|
||||
if env_var is not None:
|
||||
base_tzpath = _parse_python_tzpath(env_var)
|
||||
else:
|
||||
base_tzpath = _parse_python_tzpath(
|
||||
sysconfig.get_config_var("TZPATH")
|
||||
)
|
||||
|
||||
TZPATH = tuple(base_tzpath)
|
||||
|
||||
|
||||
def _parse_python_tzpath(env_var):
|
||||
if not env_var:
|
||||
return ()
|
||||
|
||||
raw_tzpath = env_var.split(os.pathsep)
|
||||
new_tzpath = tuple(filter(os.path.isabs, raw_tzpath))
|
||||
|
||||
# If anything has been filtered out, we will warn about it
|
||||
if len(new_tzpath) != len(raw_tzpath):
|
||||
import warnings
|
||||
|
||||
msg = _get_invalid_paths_message(raw_tzpath)
|
||||
|
||||
warnings.warn(
|
||||
"Invalid paths specified in PYTHONTZPATH environment variable."
|
||||
+ msg,
|
||||
InvalidTZPathWarning,
|
||||
)
|
||||
|
||||
return new_tzpath
|
||||
|
||||
|
||||
def _get_invalid_paths_message(tzpaths):
|
||||
invalid_paths = (path for path in tzpaths if not os.path.isabs(path))
|
||||
|
||||
prefix = "\n "
|
||||
indented_str = prefix + prefix.join(invalid_paths)
|
||||
|
||||
return (
|
||||
"Paths should be absolute but found the following relative paths:"
|
||||
+ indented_str
|
||||
)
|
||||
|
||||
|
||||
def find_tzfile(key):
|
||||
"""Retrieve the path to a TZif file from a key."""
|
||||
_validate_tzfile_path(key)
|
||||
for search_path in TZPATH:
|
||||
filepath = os.path.join(search_path, key)
|
||||
if os.path.isfile(filepath):
|
||||
return filepath
|
||||
|
||||
return None
|
||||
|
||||
|
||||
_TEST_PATH = os.path.normpath(os.path.join("_", "_"))[:-1]
|
||||
|
||||
|
||||
def _validate_tzfile_path(path, _base=_TEST_PATH):
|
||||
if os.path.isabs(path):
|
||||
raise ValueError(
|
||||
f"ZoneInfo keys may not be absolute paths, got: {path}"
|
||||
)
|
||||
|
||||
# We only care about the kinds of path normalizations that would change the
|
||||
# length of the key - e.g. a/../b -> a/b, or a/b/ -> a/b. On Windows,
|
||||
# normpath will also change from a/b to a\b, but that would still preserve
|
||||
# the length.
|
||||
new_path = os.path.normpath(path)
|
||||
if len(new_path) != len(path):
|
||||
raise ValueError(
|
||||
f"ZoneInfo keys must be normalized relative paths, got: {path}"
|
||||
)
|
||||
|
||||
resolved = os.path.normpath(os.path.join(_base, new_path))
|
||||
if not resolved.startswith(_base):
|
||||
raise ValueError(
|
||||
f"ZoneInfo keys must refer to subdirectories of TZPATH, got: {path}"
|
||||
)
|
||||
|
||||
|
||||
del _TEST_PATH
|
||||
|
||||
|
||||
class InvalidTZPathWarning(RuntimeWarning):
|
||||
"""Warning raised if an invalid path is specified in PYTHONTZPATH."""
|
||||
|
||||
|
||||
TZPATH = ()
|
||||
reset_tzpath()
|
||||
|
|
@ -0,0 +1,755 @@
|
|||
import bisect
|
||||
import calendar
|
||||
import collections
|
||||
import functools
|
||||
import os
|
||||
import re
|
||||
import struct
|
||||
import sys
|
||||
import weakref
|
||||
from datetime import datetime, timedelta, timezone, tzinfo
|
||||
|
||||
from . import _common, _tzpath
|
||||
|
||||
EPOCH = datetime(1970, 1, 1)
|
||||
EPOCHORDINAL = datetime(1970, 1, 1).toordinal()
|
||||
|
||||
# It is relatively expensive to construct new timedelta objects, and in most
|
||||
# cases we're looking at the same deltas, like integer numbers of hours, etc.
|
||||
# To improve speed and memory use, we'll keep a dictionary with references
|
||||
# to the ones we've already used so far.
|
||||
#
|
||||
# Loading every time zone in the 2020a version of the time zone database
|
||||
# requires 447 timedeltas, which requires approximately the amount of space
|
||||
# that ZoneInfo("America/New_York") with 236 transitions takes up, so we will
|
||||
# set the cache size to 512 so that in the common case we always get cache
|
||||
# hits, but specifically crafted ZoneInfo objects don't leak arbitrary amounts
|
||||
# of memory.
|
||||
@functools.lru_cache(maxsize=512)
|
||||
def _load_timedelta(seconds):
|
||||
return timedelta(seconds=seconds)
|
||||
|
||||
|
||||
class ZoneInfo(tzinfo):
|
||||
_strong_cache_size = 8
|
||||
_strong_cache = collections.OrderedDict()
|
||||
_weak_cache = weakref.WeakValueDictionary()
|
||||
__module__ = "zoneinfo"
|
||||
|
||||
def __init_subclass__(cls):
|
||||
cls._strong_cache = collections.OrderedDict()
|
||||
cls._weak_cache = weakref.WeakValueDictionary()
|
||||
|
||||
def __new__(cls, key):
|
||||
instance = cls._weak_cache.get(key, None)
|
||||
if instance is None:
|
||||
instance = cls._weak_cache.setdefault(key, cls._new_instance(key))
|
||||
instance._from_cache = True
|
||||
|
||||
# Update the "strong" cache
|
||||
cls._strong_cache[key] = cls._strong_cache.pop(key, instance)
|
||||
|
||||
if len(cls._strong_cache) > cls._strong_cache_size:
|
||||
cls._strong_cache.popitem(last=False)
|
||||
|
||||
return instance
|
||||
|
||||
@classmethod
|
||||
def no_cache(cls, key):
|
||||
obj = cls._new_instance(key)
|
||||
obj._from_cache = False
|
||||
|
||||
return obj
|
||||
|
||||
@classmethod
|
||||
def _new_instance(cls, key):
|
||||
obj = super().__new__(cls)
|
||||
obj._key = key
|
||||
obj._file_path = obj._find_tzfile(key)
|
||||
|
||||
if obj._file_path is not None:
|
||||
file_obj = open(obj._file_path, "rb")
|
||||
else:
|
||||
file_obj = _common.load_tzdata(key)
|
||||
|
||||
with file_obj as f:
|
||||
obj._load_file(f)
|
||||
|
||||
return obj
|
||||
|
||||
@classmethod
|
||||
def from_file(cls, fobj, /, key=None):
|
||||
obj = super().__new__(cls)
|
||||
obj._key = key
|
||||
obj._file_path = None
|
||||
obj._load_file(fobj)
|
||||
obj._file_repr = repr(fobj)
|
||||
|
||||
# Disable pickling for objects created from files
|
||||
obj.__reduce__ = obj._file_reduce
|
||||
|
||||
return obj
|
||||
|
||||
@classmethod
|
||||
def clear_cache(cls, *, only_keys=None):
|
||||
if only_keys is not None:
|
||||
for key in only_keys:
|
||||
cls._weak_cache.pop(key, None)
|
||||
cls._strong_cache.pop(key, None)
|
||||
|
||||
else:
|
||||
cls._weak_cache.clear()
|
||||
cls._strong_cache.clear()
|
||||
|
||||
@property
|
||||
def key(self):
|
||||
return self._key
|
||||
|
||||
def utcoffset(self, dt):
|
||||
return self._find_trans(dt).utcoff
|
||||
|
||||
def dst(self, dt):
|
||||
return self._find_trans(dt).dstoff
|
||||
|
||||
def tzname(self, dt):
|
||||
return self._find_trans(dt).tzname
|
||||
|
||||
def fromutc(self, dt):
|
||||
"""Convert from datetime in UTC to datetime in local time"""
|
||||
|
||||
if not isinstance(dt, datetime):
|
||||
raise TypeError("fromutc() requires a datetime argument")
|
||||
if dt.tzinfo is not self:
|
||||
raise ValueError("dt.tzinfo is not self")
|
||||
|
||||
timestamp = self._get_local_timestamp(dt)
|
||||
num_trans = len(self._trans_utc)
|
||||
|
||||
if num_trans >= 1 and timestamp < self._trans_utc[0]:
|
||||
tti = self._tti_before
|
||||
fold = 0
|
||||
elif (
|
||||
num_trans == 0 or timestamp > self._trans_utc[-1]
|
||||
) and not isinstance(self._tz_after, _ttinfo):
|
||||
tti, fold = self._tz_after.get_trans_info_fromutc(
|
||||
timestamp, dt.year
|
||||
)
|
||||
elif num_trans == 0:
|
||||
tti = self._tz_after
|
||||
fold = 0
|
||||
else:
|
||||
idx = bisect.bisect_right(self._trans_utc, timestamp)
|
||||
|
||||
if num_trans > 1 and timestamp >= self._trans_utc[1]:
|
||||
tti_prev, tti = self._ttinfos[idx - 2 : idx]
|
||||
elif timestamp > self._trans_utc[-1]:
|
||||
tti_prev = self._ttinfos[-1]
|
||||
tti = self._tz_after
|
||||
else:
|
||||
tti_prev = self._tti_before
|
||||
tti = self._ttinfos[0]
|
||||
|
||||
# Detect fold
|
||||
shift = tti_prev.utcoff - tti.utcoff
|
||||
fold = shift.total_seconds() > timestamp - self._trans_utc[idx - 1]
|
||||
dt += tti.utcoff
|
||||
if fold:
|
||||
return dt.replace(fold=1)
|
||||
else:
|
||||
return dt
|
||||
|
||||
def _find_trans(self, dt):
|
||||
if dt is None:
|
||||
if self._fixed_offset:
|
||||
return self._tz_after
|
||||
else:
|
||||
return _NO_TTINFO
|
||||
|
||||
ts = self._get_local_timestamp(dt)
|
||||
|
||||
lt = self._trans_local[dt.fold]
|
||||
|
||||
num_trans = len(lt)
|
||||
|
||||
if num_trans and ts < lt[0]:
|
||||
return self._tti_before
|
||||
elif not num_trans or ts > lt[-1]:
|
||||
if isinstance(self._tz_after, _TZStr):
|
||||
return self._tz_after.get_trans_info(ts, dt.year, dt.fold)
|
||||
else:
|
||||
return self._tz_after
|
||||
else:
|
||||
# idx is the transition that occurs after this timestamp, so we
|
||||
# subtract off 1 to get the current ttinfo
|
||||
idx = bisect.bisect_right(lt, ts) - 1
|
||||
assert idx >= 0
|
||||
return self._ttinfos[idx]
|
||||
|
||||
def _get_local_timestamp(self, dt):
|
||||
return (
|
||||
(dt.toordinal() - EPOCHORDINAL) * 86400
|
||||
+ dt.hour * 3600
|
||||
+ dt.minute * 60
|
||||
+ dt.second
|
||||
)
|
||||
|
||||
def __str__(self):
|
||||
if self._key is not None:
|
||||
return f"{self._key}"
|
||||
else:
|
||||
return repr(self)
|
||||
|
||||
def __repr__(self):
|
||||
if self._key is not None:
|
||||
return f"{self.__class__.__name__}(key={self._key!r})"
|
||||
else:
|
||||
return f"{self.__class__.__name__}.from_file({self._file_repr})"
|
||||
|
||||
def __reduce__(self):
|
||||
return (self.__class__._unpickle, (self._key, self._from_cache))
|
||||
|
||||
def _file_reduce(self):
|
||||
import pickle
|
||||
|
||||
raise pickle.PicklingError(
|
||||
"Cannot pickle a ZoneInfo file created from a file stream."
|
||||
)
|
||||
|
||||
@classmethod
|
||||
def _unpickle(cls, key, from_cache, /):
|
||||
if from_cache:
|
||||
return cls(key)
|
||||
else:
|
||||
return cls.no_cache(key)
|
||||
|
||||
def _find_tzfile(self, key):
|
||||
return _tzpath.find_tzfile(key)
|
||||
|
||||
def _load_file(self, fobj):
|
||||
# Retrieve all the data as it exists in the zoneinfo file
|
||||
trans_idx, trans_utc, utcoff, isdst, abbr, tz_str = _common.load_data(
|
||||
fobj
|
||||
)
|
||||
|
||||
# Infer the DST offsets (needed for .dst()) from the data
|
||||
dstoff = self._utcoff_to_dstoff(trans_idx, utcoff, isdst)
|
||||
|
||||
# Convert all the transition times (UTC) into "seconds since 1970-01-01 local time"
|
||||
trans_local = self._ts_to_local(trans_idx, trans_utc, utcoff)
|
||||
|
||||
# Construct `_ttinfo` objects for each transition in the file
|
||||
_ttinfo_list = [
|
||||
_ttinfo(
|
||||
_load_timedelta(utcoffset), _load_timedelta(dstoffset), tzname
|
||||
)
|
||||
for utcoffset, dstoffset, tzname in zip(utcoff, dstoff, abbr)
|
||||
]
|
||||
|
||||
self._trans_utc = trans_utc
|
||||
self._trans_local = trans_local
|
||||
self._ttinfos = [_ttinfo_list[idx] for idx in trans_idx]
|
||||
|
||||
# Find the first non-DST transition
|
||||
for i in range(len(isdst)):
|
||||
if not isdst[i]:
|
||||
self._tti_before = _ttinfo_list[i]
|
||||
break
|
||||
else:
|
||||
if self._ttinfos:
|
||||
self._tti_before = self._ttinfos[0]
|
||||
else:
|
||||
self._tti_before = None
|
||||
|
||||
# Set the "fallback" time zone
|
||||
if tz_str is not None and tz_str != b"":
|
||||
self._tz_after = _parse_tz_str(tz_str.decode())
|
||||
else:
|
||||
if not self._ttinfos and not _ttinfo_list:
|
||||
raise ValueError("No time zone information found.")
|
||||
|
||||
if self._ttinfos:
|
||||
self._tz_after = self._ttinfos[-1]
|
||||
else:
|
||||
self._tz_after = _ttinfo_list[-1]
|
||||
|
||||
# Determine if this is a "fixed offset" zone, meaning that the output
|
||||
# of the utcoffset, dst and tzname functions does not depend on the
|
||||
# specific datetime passed.
|
||||
#
|
||||
# We make three simplifying assumptions here:
|
||||
#
|
||||
# 1. If _tz_after is not a _ttinfo, it has transitions that might
|
||||
# actually occur (it is possible to construct TZ strings that
|
||||
# specify STD and DST but no transitions ever occur, such as
|
||||
# AAA0BBB,0/0,J365/25).
|
||||
# 2. If _ttinfo_list contains more than one _ttinfo object, the objects
|
||||
# represent different offsets.
|
||||
# 3. _ttinfo_list contains no unused _ttinfos (in which case an
|
||||
# otherwise fixed-offset zone with extra _ttinfos defined may
|
||||
# appear to *not* be a fixed offset zone).
|
||||
#
|
||||
# Violations to these assumptions would be fairly exotic, and exotic
|
||||
# zones should almost certainly not be used with datetime.time (the
|
||||
# only thing that would be affected by this).
|
||||
if len(_ttinfo_list) > 1 or not isinstance(self._tz_after, _ttinfo):
|
||||
self._fixed_offset = False
|
||||
elif not _ttinfo_list:
|
||||
self._fixed_offset = True
|
||||
else:
|
||||
self._fixed_offset = _ttinfo_list[0] == self._tz_after
|
||||
|
||||
@staticmethod
|
||||
def _utcoff_to_dstoff(trans_idx, utcoffsets, isdsts):
|
||||
# Now we must transform our ttis and abbrs into `_ttinfo` objects,
|
||||
# but there is an issue: .dst() must return a timedelta with the
|
||||
# difference between utcoffset() and the "standard" offset, but
|
||||
# the "base offset" and "DST offset" are not encoded in the file;
|
||||
# we can infer what they are from the isdst flag, but it is not
|
||||
# sufficient to to just look at the last standard offset, because
|
||||
# occasionally countries will shift both DST offset and base offset.
|
||||
|
||||
typecnt = len(isdsts)
|
||||
dstoffs = [0] * typecnt # Provisionally assign all to 0.
|
||||
dst_cnt = sum(isdsts)
|
||||
dst_found = 0
|
||||
|
||||
for i in range(1, len(trans_idx)):
|
||||
if dst_cnt == dst_found:
|
||||
break
|
||||
|
||||
idx = trans_idx[i]
|
||||
|
||||
dst = isdsts[idx]
|
||||
|
||||
# We're only going to look at daylight saving time
|
||||
if not dst:
|
||||
continue
|
||||
|
||||
# Skip any offsets that have already been assigned
|
||||
if dstoffs[idx] != 0:
|
||||
continue
|
||||
|
||||
dstoff = 0
|
||||
utcoff = utcoffsets[idx]
|
||||
|
||||
comp_idx = trans_idx[i - 1]
|
||||
|
||||
if not isdsts[comp_idx]:
|
||||
dstoff = utcoff - utcoffsets[comp_idx]
|
||||
|
||||
if not dstoff and idx < (typecnt - 1):
|
||||
comp_idx = trans_idx[i + 1]
|
||||
|
||||
# If the following transition is also DST and we couldn't
|
||||
# find the DST offset by this point, we're going ot have to
|
||||
# skip it and hope this transition gets assigned later
|
||||
if isdsts[comp_idx]:
|
||||
continue
|
||||
|
||||
dstoff = utcoff - utcoffsets[comp_idx]
|
||||
|
||||
if dstoff:
|
||||
dst_found += 1
|
||||
dstoffs[idx] = dstoff
|
||||
else:
|
||||
# If we didn't find a valid value for a given index, we'll end up
|
||||
# with dstoff = 0 for something where `isdst=1`. This is obviously
|
||||
# wrong - one hour will be a much better guess than 0
|
||||
for idx in range(typecnt):
|
||||
if not dstoffs[idx] and isdsts[idx]:
|
||||
dstoffs[idx] = 3600
|
||||
|
||||
return dstoffs
|
||||
|
||||
@staticmethod
|
||||
def _ts_to_local(trans_idx, trans_list_utc, utcoffsets):
|
||||
"""Generate number of seconds since 1970 *in the local time*.
|
||||
|
||||
This is necessary to easily find the transition times in local time"""
|
||||
if not trans_list_utc:
|
||||
return [[], []]
|
||||
|
||||
# Start with the timestamps and modify in-place
|
||||
trans_list_wall = [list(trans_list_utc), list(trans_list_utc)]
|
||||
|
||||
if len(utcoffsets) > 1:
|
||||
offset_0 = utcoffsets[0]
|
||||
offset_1 = utcoffsets[trans_idx[0]]
|
||||
if offset_1 > offset_0:
|
||||
offset_1, offset_0 = offset_0, offset_1
|
||||
else:
|
||||
offset_0 = offset_1 = utcoffsets[0]
|
||||
|
||||
trans_list_wall[0][0] += offset_0
|
||||
trans_list_wall[1][0] += offset_1
|
||||
|
||||
for i in range(1, len(trans_idx)):
|
||||
offset_0 = utcoffsets[trans_idx[i - 1]]
|
||||
offset_1 = utcoffsets[trans_idx[i]]
|
||||
|
||||
if offset_1 > offset_0:
|
||||
offset_1, offset_0 = offset_0, offset_1
|
||||
|
||||
trans_list_wall[0][i] += offset_0
|
||||
trans_list_wall[1][i] += offset_1
|
||||
|
||||
return trans_list_wall
|
||||
|
||||
|
||||
class _ttinfo:
|
||||
__slots__ = ["utcoff", "dstoff", "tzname"]
|
||||
|
||||
def __init__(self, utcoff, dstoff, tzname):
|
||||
self.utcoff = utcoff
|
||||
self.dstoff = dstoff
|
||||
self.tzname = tzname
|
||||
|
||||
def __eq__(self, other):
|
||||
return (
|
||||
self.utcoff == other.utcoff
|
||||
and self.dstoff == other.dstoff
|
||||
and self.tzname == other.tzname
|
||||
)
|
||||
|
||||
def __repr__(self): # pragma: nocover
|
||||
return (
|
||||
f"{self.__class__.__name__}"
|
||||
+ f"({self.utcoff}, {self.dstoff}, {self.tzname})"
|
||||
)
|
||||
|
||||
|
||||
_NO_TTINFO = _ttinfo(None, None, None)
|
||||
|
||||
|
||||
class _TZStr:
|
||||
__slots__ = (
|
||||
"std",
|
||||
"dst",
|
||||
"start",
|
||||
"end",
|
||||
"get_trans_info",
|
||||
"get_trans_info_fromutc",
|
||||
"dst_diff",
|
||||
)
|
||||
|
||||
def __init__(
|
||||
self, std_abbr, std_offset, dst_abbr, dst_offset, start=None, end=None
|
||||
):
|
||||
self.dst_diff = dst_offset - std_offset
|
||||
std_offset = _load_timedelta(std_offset)
|
||||
self.std = _ttinfo(
|
||||
utcoff=std_offset, dstoff=_load_timedelta(0), tzname=std_abbr
|
||||
)
|
||||
|
||||
self.start = start
|
||||
self.end = end
|
||||
|
||||
dst_offset = _load_timedelta(dst_offset)
|
||||
delta = _load_timedelta(self.dst_diff)
|
||||
self.dst = _ttinfo(utcoff=dst_offset, dstoff=delta, tzname=dst_abbr)
|
||||
|
||||
# These are assertions because the constructor should only be called
|
||||
# by functions that would fail before passing start or end
|
||||
assert start is not None, "No transition start specified"
|
||||
assert end is not None, "No transition end specified"
|
||||
|
||||
self.get_trans_info = self._get_trans_info
|
||||
self.get_trans_info_fromutc = self._get_trans_info_fromutc
|
||||
|
||||
def transitions(self, year):
|
||||
start = self.start.year_to_epoch(year)
|
||||
end = self.end.year_to_epoch(year)
|
||||
return start, end
|
||||
|
||||
def _get_trans_info(self, ts, year, fold):
|
||||
"""Get the information about the current transition - tti"""
|
||||
start, end = self.transitions(year)
|
||||
|
||||
# With fold = 0, the period (denominated in local time) with the
|
||||
# smaller offset starts at the end of the gap and ends at the end of
|
||||
# the fold; with fold = 1, it runs from the start of the gap to the
|
||||
# beginning of the fold.
|
||||
#
|
||||
# So in order to determine the DST boundaries we need to know both
|
||||
# the fold and whether DST is positive or negative (rare), and it
|
||||
# turns out that this boils down to fold XOR is_positive.
|
||||
if fold == (self.dst_diff >= 0):
|
||||
end -= self.dst_diff
|
||||
else:
|
||||
start += self.dst_diff
|
||||
|
||||
if start < end:
|
||||
isdst = start <= ts < end
|
||||
else:
|
||||
isdst = not (end <= ts < start)
|
||||
|
||||
return self.dst if isdst else self.std
|
||||
|
||||
def _get_trans_info_fromutc(self, ts, year):
|
||||
start, end = self.transitions(year)
|
||||
start -= self.std.utcoff.total_seconds()
|
||||
end -= self.dst.utcoff.total_seconds()
|
||||
|
||||
if start < end:
|
||||
isdst = start <= ts < end
|
||||
else:
|
||||
isdst = not (end <= ts < start)
|
||||
|
||||
# For positive DST, the ambiguous period is one dst_diff after the end
|
||||
# of DST; for negative DST, the ambiguous period is one dst_diff before
|
||||
# the start of DST.
|
||||
if self.dst_diff > 0:
|
||||
ambig_start = end
|
||||
ambig_end = end + self.dst_diff
|
||||
else:
|
||||
ambig_start = start
|
||||
ambig_end = start - self.dst_diff
|
||||
|
||||
fold = ambig_start <= ts < ambig_end
|
||||
|
||||
return (self.dst if isdst else self.std, fold)
|
||||
|
||||
|
||||
def _post_epoch_days_before_year(year):
|
||||
"""Get the number of days between 1970-01-01 and YEAR-01-01"""
|
||||
y = year - 1
|
||||
return y * 365 + y // 4 - y // 100 + y // 400 - EPOCHORDINAL
|
||||
|
||||
|
||||
class _DayOffset:
|
||||
__slots__ = ["d", "julian", "hour", "minute", "second"]
|
||||
|
||||
def __init__(self, d, julian, hour=2, minute=0, second=0):
|
||||
if not (0 + julian) <= d <= 365:
|
||||
min_day = 0 + julian
|
||||
raise ValueError(f"d must be in [{min_day}, 365], not: {d}")
|
||||
|
||||
self.d = d
|
||||
self.julian = julian
|
||||
self.hour = hour
|
||||
self.minute = minute
|
||||
self.second = second
|
||||
|
||||
def year_to_epoch(self, year):
|
||||
days_before_year = _post_epoch_days_before_year(year)
|
||||
|
||||
d = self.d
|
||||
if self.julian and d >= 59 and calendar.isleap(year):
|
||||
d += 1
|
||||
|
||||
epoch = (days_before_year + d) * 86400
|
||||
epoch += self.hour * 3600 + self.minute * 60 + self.second
|
||||
|
||||
return epoch
|
||||
|
||||
|
||||
class _CalendarOffset:
|
||||
__slots__ = ["m", "w", "d", "hour", "minute", "second"]
|
||||
|
||||
_DAYS_BEFORE_MONTH = (
|
||||
-1,
|
||||
0,
|
||||
31,
|
||||
59,
|
||||
90,
|
||||
120,
|
||||
151,
|
||||
181,
|
||||
212,
|
||||
243,
|
||||
273,
|
||||
304,
|
||||
334,
|
||||
)
|
||||
|
||||
def __init__(self, m, w, d, hour=2, minute=0, second=0):
|
||||
if not 0 < m <= 12:
|
||||
raise ValueError("m must be in (0, 12]")
|
||||
|
||||
if not 0 < w <= 5:
|
||||
raise ValueError("w must be in (0, 5]")
|
||||
|
||||
if not 0 <= d <= 6:
|
||||
raise ValueError("d must be in [0, 6]")
|
||||
|
||||
self.m = m
|
||||
self.w = w
|
||||
self.d = d
|
||||
self.hour = hour
|
||||
self.minute = minute
|
||||
self.second = second
|
||||
|
||||
@classmethod
|
||||
def _ymd2ord(cls, year, month, day):
|
||||
return (
|
||||
_post_epoch_days_before_year(year)
|
||||
+ cls._DAYS_BEFORE_MONTH[month]
|
||||
+ (month > 2 and calendar.isleap(year))
|
||||
+ day
|
||||
)
|
||||
|
||||
# TODO: These are not actually epoch dates as they are expressed in local time
|
||||
def year_to_epoch(self, year):
|
||||
"""Calculates the datetime of the occurrence from the year"""
|
||||
# We know year and month, we need to convert w, d into day of month
|
||||
#
|
||||
# Week 1 is the first week in which day `d` (where 0 = Sunday) appears.
|
||||
# Week 5 represents the last occurrence of day `d`, so we need to know
|
||||
# the range of the month.
|
||||
first_day, days_in_month = calendar.monthrange(year, self.m)
|
||||
|
||||
# This equation seems magical, so I'll break it down:
|
||||
# 1. calendar says 0 = Monday, POSIX says 0 = Sunday
|
||||
# so we need first_day + 1 to get 1 = Monday -> 7 = Sunday,
|
||||
# which is still equivalent because this math is mod 7
|
||||
# 2. Get first day - desired day mod 7: -1 % 7 = 6, so we don't need
|
||||
# to do anything to adjust negative numbers.
|
||||
# 3. Add 1 because month days are a 1-based index.
|
||||
month_day = (self.d - (first_day + 1)) % 7 + 1
|
||||
|
||||
# Now use a 0-based index version of `w` to calculate the w-th
|
||||
# occurrence of `d`
|
||||
month_day += (self.w - 1) * 7
|
||||
|
||||
# month_day will only be > days_in_month if w was 5, and `w` means
|
||||
# "last occurrence of `d`", so now we just check if we over-shot the
|
||||
# end of the month and if so knock off 1 week.
|
||||
if month_day > days_in_month:
|
||||
month_day -= 7
|
||||
|
||||
ordinal = self._ymd2ord(year, self.m, month_day)
|
||||
epoch = ordinal * 86400
|
||||
epoch += self.hour * 3600 + self.minute * 60 + self.second
|
||||
return epoch
|
||||
|
||||
|
||||
def _parse_tz_str(tz_str):
|
||||
# The tz string has the format:
|
||||
#
|
||||
# std[offset[dst[offset],start[/time],end[/time]]]
|
||||
#
|
||||
# std and dst must be 3 or more characters long and must not contain
|
||||
# a leading colon, embedded digits, commas, nor a plus or minus signs;
|
||||
# The spaces between "std" and "offset" are only for display and are
|
||||
# not actually present in the string.
|
||||
#
|
||||
# The format of the offset is ``[+|-]hh[:mm[:ss]]``
|
||||
|
||||
offset_str, *start_end_str = tz_str.split(",", 1)
|
||||
|
||||
# fmt: off
|
||||
parser_re = re.compile(
|
||||
r"(?P<std>[^<0-9:.+-]+|<[a-zA-Z0-9+\-]+>)" +
|
||||
r"((?P<stdoff>[+-]?\d{1,2}(:\d{2}(:\d{2})?)?)" +
|
||||
r"((?P<dst>[^0-9:.+-]+|<[a-zA-Z0-9+\-]+>)" +
|
||||
r"((?P<dstoff>[+-]?\d{1,2}(:\d{2}(:\d{2})?)?))?" +
|
||||
r")?" + # dst
|
||||
r")?$" # stdoff
|
||||
)
|
||||
# fmt: on
|
||||
|
||||
m = parser_re.match(offset_str)
|
||||
|
||||
if m is None:
|
||||
raise ValueError(f"{tz_str} is not a valid TZ string")
|
||||
|
||||
std_abbr = m.group("std")
|
||||
dst_abbr = m.group("dst")
|
||||
dst_offset = None
|
||||
|
||||
std_abbr = std_abbr.strip("<>")
|
||||
|
||||
if dst_abbr:
|
||||
dst_abbr = dst_abbr.strip("<>")
|
||||
|
||||
if std_offset := m.group("stdoff"):
|
||||
try:
|
||||
std_offset = _parse_tz_delta(std_offset)
|
||||
except ValueError as e:
|
||||
raise ValueError(f"Invalid STD offset in {tz_str}") from e
|
||||
else:
|
||||
std_offset = 0
|
||||
|
||||
if dst_abbr is not None:
|
||||
if dst_offset := m.group("dstoff"):
|
||||
try:
|
||||
dst_offset = _parse_tz_delta(dst_offset)
|
||||
except ValueError as e:
|
||||
raise ValueError(f"Invalid DST offset in {tz_str}") from e
|
||||
else:
|
||||
dst_offset = std_offset + 3600
|
||||
|
||||
if not start_end_str:
|
||||
raise ValueError(f"Missing transition rules: {tz_str}")
|
||||
|
||||
start_end_strs = start_end_str[0].split(",", 1)
|
||||
try:
|
||||
start, end = (_parse_dst_start_end(x) for x in start_end_strs)
|
||||
except ValueError as e:
|
||||
raise ValueError(f"Invalid TZ string: {tz_str}") from e
|
||||
|
||||
return _TZStr(std_abbr, std_offset, dst_abbr, dst_offset, start, end)
|
||||
elif start_end_str:
|
||||
raise ValueError(f"Transition rule present without DST: {tz_str}")
|
||||
else:
|
||||
# This is a static ttinfo, don't return _TZStr
|
||||
return _ttinfo(
|
||||
_load_timedelta(std_offset), _load_timedelta(0), std_abbr
|
||||
)
|
||||
|
||||
|
||||
def _parse_dst_start_end(dststr):
|
||||
date, *time = dststr.split("/")
|
||||
if date[0] == "M":
|
||||
n_is_julian = False
|
||||
m = re.match(r"M(\d{1,2})\.(\d).(\d)$", date)
|
||||
if m is None:
|
||||
raise ValueError(f"Invalid dst start/end date: {dststr}")
|
||||
date_offset = tuple(map(int, m.groups()))
|
||||
offset = _CalendarOffset(*date_offset)
|
||||
else:
|
||||
if date[0] == "J":
|
||||
n_is_julian = True
|
||||
date = date[1:]
|
||||
else:
|
||||
n_is_julian = False
|
||||
|
||||
doy = int(date)
|
||||
offset = _DayOffset(doy, n_is_julian)
|
||||
|
||||
if time:
|
||||
time_components = list(map(int, time[0].split(":")))
|
||||
n_components = len(time_components)
|
||||
if n_components < 3:
|
||||
time_components.extend([0] * (3 - n_components))
|
||||
offset.hour, offset.minute, offset.second = time_components
|
||||
|
||||
return offset
|
||||
|
||||
|
||||
def _parse_tz_delta(tz_delta):
|
||||
match = re.match(
|
||||
r"(?P<sign>[+-])?(?P<h>\d{1,2})(:(?P<m>\d{2})(:(?P<s>\d{2}))?)?",
|
||||
tz_delta,
|
||||
)
|
||||
# Anything passed to this function should already have hit an equivalent
|
||||
# regular expression to find the section to parse.
|
||||
assert match is not None, tz_delta
|
||||
|
||||
h, m, s = (
|
||||
int(v) if v is not None else 0
|
||||
for v in map(match.group, ("h", "m", "s"))
|
||||
)
|
||||
|
||||
total = h * 3600 + m * 60 + s
|
||||
|
||||
if not -86400 < total < 86400:
|
||||
raise ValueError(
|
||||
"Offset must be strictly between -24h and +24h:" + tz_delta
|
||||
)
|
||||
|
||||
# Yes, +5 maps to an offset of -5h
|
||||
if match.group("sign") != "-":
|
||||
total *= -1
|
||||
|
||||
return total
|
||||
|
|
@ -197,6 +197,9 @@ OPENSSL_INCLUDES=@OPENSSL_INCLUDES@
|
|||
OPENSSL_LIBS=@OPENSSL_LIBS@
|
||||
OPENSSL_LDFLAGS=@OPENSSL_LDFLAGS@
|
||||
|
||||
# Default zoneinfo.TZPATH. Added here to expose it in sysconfig.get_config_var
|
||||
TZPATH=@TZPATH@
|
||||
|
||||
# Modes for directories, executables and data files created by the
|
||||
# install process. Default to user-only-writable for all file types.
|
||||
DIRMODE= 755
|
||||
|
|
|
|||
|
|
@ -0,0 +1 @@
|
|||
tzdata==2020.1rc0
|
||||
|
|
@ -181,6 +181,7 @@ _symtable symtablemodule.c
|
|||
#_elementtree -I$(srcdir)/Modules/expat -DHAVE_EXPAT_CONFIG_H -DUSE_PYEXPAT_CAPI _elementtree.c # elementtree accelerator
|
||||
#_pickle _pickle.c # pickle accelerator
|
||||
#_datetime _datetimemodule.c # datetime accelerator
|
||||
#_zoneinfo _zoneinfo.c # zoneinfo accelerator
|
||||
#_bisect _bisectmodule.c # Bisection algorithms
|
||||
#_heapq _heapqmodule.c # Heap queue algorithm
|
||||
#_asyncio _asynciomodule.c # Fast asyncio Future
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,109 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup Label="ProjectConfigurations">
|
||||
<ProjectConfiguration Include="Debug|ARM">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>ARM</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|ARM64">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>ARM64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|Win32">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Debug|x64">
|
||||
<Configuration>Debug</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGInstrument|ARM">
|
||||
<Configuration>PGInstrument</Configuration>
|
||||
<Platform>ARM</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGInstrument|ARM64">
|
||||
<Configuration>PGInstrument</Configuration>
|
||||
<Platform>ARM64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGInstrument|Win32">
|
||||
<Configuration>PGInstrument</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGInstrument|x64">
|
||||
<Configuration>PGInstrument</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGUpdate|ARM">
|
||||
<Configuration>PGUpdate</Configuration>
|
||||
<Platform>ARM</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGUpdate|ARM64">
|
||||
<Configuration>PGUpdate</Configuration>
|
||||
<Platform>ARM64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGUpdate|Win32">
|
||||
<Configuration>PGUpdate</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="PGUpdate|x64">
|
||||
<Configuration>PGUpdate</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|ARM">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>ARM</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|ARM64">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>ARM64</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|Win32">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>Win32</Platform>
|
||||
</ProjectConfiguration>
|
||||
<ProjectConfiguration Include="Release|x64">
|
||||
<Configuration>Release</Configuration>
|
||||
<Platform>x64</Platform>
|
||||
</ProjectConfiguration>
|
||||
</ItemGroup>
|
||||
<PropertyGroup Label="Globals">
|
||||
<ProjectGuid>{FCBE1EF2-E0F0-40B1-88B5-00A35D378742}</ProjectGuid>
|
||||
<RootNamespace>_zoneinfo</RootNamespace>
|
||||
<Keyword>Win32Proj</Keyword>
|
||||
</PropertyGroup>
|
||||
<Import Project="python.props" />
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
|
||||
<PropertyGroup Label="Configuration">
|
||||
<ConfigurationType>DynamicLibrary</ConfigurationType>
|
||||
<CharacterSet>NotSet</CharacterSet>
|
||||
</PropertyGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
|
||||
<PropertyGroup>
|
||||
<TargetExt>.pyd</TargetExt>
|
||||
</PropertyGroup>
|
||||
<ImportGroup Label="ExtensionSettings">
|
||||
</ImportGroup>
|
||||
<ImportGroup Label="PropertySheets">
|
||||
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
|
||||
<Import Project="pyproject.props" />
|
||||
</ImportGroup>
|
||||
<PropertyGroup Label="UserMacros" />
|
||||
<PropertyGroup>
|
||||
<_ProjectFileVersion>10.0.30319.1</_ProjectFileVersion>
|
||||
</PropertyGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="..\Modules\_zoneinfo.c" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ResourceCompile Include="..\PC\python_nt.rc" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ProjectReference Include="pythoncore.vcxproj">
|
||||
<Project>{cf7ac3d1-e2df-41d2-bea6-1e2556cdea26}</Project>
|
||||
<ReferenceOutputAssembly>false</ReferenceOutputAssembly>
|
||||
</ProjectReference>
|
||||
</ItemGroup>
|
||||
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
|
||||
<ImportGroup Label="ExtensionTargets">
|
||||
</ImportGroup>
|
||||
</Project>
|
||||
|
|
@ -0,0 +1,16 @@
|
|||
<?xml version="1.0" encoding="utf-8"?>
|
||||
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
|
||||
<ItemGroup>
|
||||
<ResourceCompile Include="..\PC\python_nt.rc" />
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<Filter Include="Source Files">
|
||||
<UniqueIdentifier>{2422278e-eeeb-4241-8182-433e2bc5a7fc}</UniqueIdentifier>
|
||||
</Filter>
|
||||
</ItemGroup>
|
||||
<ItemGroup>
|
||||
<ClCompile Include="..\Modules\_zoneinfo.c">
|
||||
<Filter>Source Files</Filter>
|
||||
</ClCompile>
|
||||
</ItemGroup>
|
||||
</Project>
|
||||
|
|
@ -1396,6 +1396,10 @@
|
|||
<Compile Include="test\test_zipimport.py" />
|
||||
<Compile Include="test\test_zipimport_support.py" />
|
||||
<Compile Include="test\test_zlib.py" />
|
||||
<Compile Include="test\test_zoneinfo\__init__.py" />
|
||||
<Compile Include="test\test_zoneinfo\__main__.py" />
|
||||
<Compile Include="test\test_zoneinfo\_support.py" />
|
||||
<Compile Include="test\test_zoneinfo\test_zoneinfo.py" />
|
||||
<Compile Include="test\test__locale.py" />
|
||||
<Compile Include="test\test__opcode.py" />
|
||||
<Compile Include="test\test__osx_support.py" />
|
||||
|
|
@ -1563,6 +1567,10 @@
|
|||
<Compile Include="xml\__init__.py" />
|
||||
<Compile Include="zipapp.py" />
|
||||
<Compile Include="zipfile.py" />
|
||||
<Compile Include="zoneinfo\_common.py" />
|
||||
<Compile Include="zoneinfo\__init__.py" />
|
||||
<Compile Include="zoneinfo\_tzpath.py" />
|
||||
<Compile Include="zoneinfo\_zoneinfo.py" />
|
||||
<Compile Include="_bootlocale.py" />
|
||||
<Compile Include="_collections_abc.py" />
|
||||
<Compile Include="_compat_pickle.py" />
|
||||
|
|
|
|||
|
|
@ -51,7 +51,7 @@
|
|||
<!-- pyshellext.dll -->
|
||||
<Projects Include="pyshellext.vcxproj" />
|
||||
<!-- Extension modules -->
|
||||
<ExtensionModules Include="_asyncio;_decimal;_elementtree;_msi;_multiprocessing;_overlapped;pyexpat;_queue;select;unicodedata;winsound;_uuid" />
|
||||
<ExtensionModules Include="_asyncio;_zoneinfo;_decimal;_elementtree;_msi;_multiprocessing;_overlapped;pyexpat;_queue;select;unicodedata;winsound;_uuid" />
|
||||
<ExtensionModules Include="_ctypes" Condition="$(IncludeCTypes)" />
|
||||
<!-- Extension modules that require external sources -->
|
||||
<ExternalModules Include="_bz2;_lzma;_sqlite3" />
|
||||
|
|
|
|||
|
|
@ -91,6 +91,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_testconsole", "_testconsol
|
|||
EndProject
|
||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_asyncio", "_asyncio.vcxproj", "{384C224A-7474-476E-A01B-750EA7DE918C}"
|
||||
EndProject
|
||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_zoneinfo", "_zoneinfo.vcxproj", "{FCBE1EF2-E0F0-40B1-88B5-00A35D378742}"
|
||||
EndProject
|
||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "_queue", "_queue.vcxproj", "{78D80A15-BD8C-44E2-B49E-1F05B0A0A687}"
|
||||
EndProject
|
||||
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "liblzma", "liblzma.vcxproj", "{12728250-16EC-4DC6-94D7-E21DD88947F8}"
|
||||
|
|
|
|||
|
|
@ -132,6 +132,7 @@ library which are implemented in C; each one builds a DLL (renamed to
|
|||
_asyncio
|
||||
_ctypes
|
||||
_ctypes_test
|
||||
_zoneinfo
|
||||
_decimal
|
||||
_elementtree
|
||||
_hashlib
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
|
||||
<?define exts=pyexpat;select;unicodedata;winsound;_bz2;_elementtree;_socket;_ssl;_msi;_ctypes;_hashlib;_multiprocessing;_lzma;_decimal;_overlapped;_sqlite3;_asyncio;_queue;_uuid ?>
|
||||
<?define exts=pyexpat;select;unicodedata;winsound;_bz2;_elementtree;_socket;_ssl;_msi;_ctypes;_hashlib;_multiprocessing;_lzma;_decimal;_overlapped;_sqlite3;_asyncio;_queue;_uuid;_zoneinfo ?>
|
||||
<Fragment>
|
||||
<DirectoryRef Id="Lib_venv_scripts_nt" />
|
||||
|
||||
|
|
|
|||
|
|
@ -658,6 +658,7 @@ LIBFFI_INCLUDEDIR
|
|||
PKG_CONFIG_LIBDIR
|
||||
PKG_CONFIG_PATH
|
||||
PKG_CONFIG
|
||||
TZPATH
|
||||
SHLIBS
|
||||
CFLAGSFORSHARED
|
||||
LINKFORSHARED
|
||||
|
|
@ -819,6 +820,7 @@ with_assertions
|
|||
enable_optimizations
|
||||
with_lto
|
||||
with_hash_algorithm
|
||||
with_tzpath
|
||||
with_address_sanitizer
|
||||
with_memory_sanitizer
|
||||
with_undefined_behavior_sanitizer
|
||||
|
|
@ -1525,6 +1527,9 @@ Optional Packages:
|
|||
--with-hash-algorithm=[fnv|siphash24]
|
||||
select hash algorithm for use in Python/pyhash.c
|
||||
(default is SipHash24)
|
||||
--with-tzpath=<list of absolute paths separated by pathsep>
|
||||
Select the default time zone search path for zoneinfo.TZPATH
|
||||
|
||||
--with-address-sanitizer
|
||||
enable AddressSanitizer memory error detector,
|
||||
'asan' (default is no)
|
||||
|
|
@ -10154,6 +10159,47 @@ $as_echo "default" >&6; }
|
|||
fi
|
||||
|
||||
|
||||
validate_tzpath() {
|
||||
# Checks that each element of hte path is an absolute path
|
||||
if test -z "$1"; then
|
||||
# Empty string is allowed: it indicates no system TZPATH
|
||||
return 0
|
||||
fi
|
||||
|
||||
# Bad paths are those that don't start with /
|
||||
if ( echo $1 | grep -qE '(^|:)([^/]|$)' ); then
|
||||
as_fn_error $? "--with-tzpath must contain only absolute paths, not $1" "$LINENO" 5
|
||||
return 1;
|
||||
fi
|
||||
}
|
||||
|
||||
TZPATH="/usr/share/zoneinfo:/usr/lib/zoneinfo:/usr/share/lib/zoneinfo:/etc/zoneinfo"
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-tzpath" >&5
|
||||
$as_echo_n "checking for --with-tzpath... " >&6; }
|
||||
|
||||
# Check whether --with-tzpath was given.
|
||||
if test "${with_tzpath+set}" = set; then :
|
||||
withval=$with_tzpath;
|
||||
case "$withval" in
|
||||
yes)
|
||||
as_fn_error $? "--with-tzpath requires a value" "$LINENO" 5
|
||||
;;
|
||||
*)
|
||||
validate_tzpath "$withval"
|
||||
TZPATH="$withval"
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: \"$withval\"" >&5
|
||||
$as_echo "\"$withval\"" >&6; }
|
||||
;;
|
||||
esac
|
||||
|
||||
else
|
||||
validate_tzpath "$TZPATH"
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: \"$TZPATH\"" >&5
|
||||
$as_echo "\"$TZPATH\"" >&6; }
|
||||
fi
|
||||
|
||||
|
||||
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for --with-address-sanitizer" >&5
|
||||
$as_echo_n "checking for --with-address-sanitizer... " >&6; }
|
||||
|
||||
|
|
|
|||
36
configure.ac
36
configure.ac
|
|
@ -2946,6 +2946,42 @@ esac
|
|||
],
|
||||
[AC_MSG_RESULT(default)])
|
||||
|
||||
validate_tzpath() {
|
||||
# Checks that each element of hte path is an absolute path
|
||||
if test -z "$1"; then
|
||||
# Empty string is allowed: it indicates no system TZPATH
|
||||
return 0
|
||||
fi
|
||||
|
||||
# Bad paths are those that don't start with /
|
||||
dnl quadrigraphs "@<:@" and "@:>@" produce "[" and "]" in the output
|
||||
if ( echo $1 | grep -qE '(^|:)(@<:@^/@:>@|$)' ); then
|
||||
AC_MSG_ERROR([--with-tzpath must contain only absolute paths, not $1])
|
||||
return 1;
|
||||
fi
|
||||
}
|
||||
|
||||
TZPATH="/usr/share/zoneinfo:/usr/lib/zoneinfo:/usr/share/lib/zoneinfo:/etc/zoneinfo"
|
||||
AC_MSG_CHECKING(for --with-tzpath)
|
||||
AC_ARG_WITH(tzpath,
|
||||
AS_HELP_STRING([--with-tzpath=<list of absolute paths separated by pathsep>]
|
||||
[Select the default time zone search path for zoneinfo.TZPATH]),
|
||||
[
|
||||
case "$withval" in
|
||||
yes)
|
||||
AC_MSG_ERROR([--with-tzpath requires a value])
|
||||
;;
|
||||
*)
|
||||
validate_tzpath "$withval"
|
||||
TZPATH="$withval"
|
||||
AC_MSG_RESULT("$withval")
|
||||
;;
|
||||
esac
|
||||
],
|
||||
[validate_tzpath "$TZPATH"
|
||||
AC_MSG_RESULT("$TZPATH")])
|
||||
AC_SUBST(TZPATH)
|
||||
|
||||
AC_MSG_CHECKING(for --with-address-sanitizer)
|
||||
AC_ARG_WITH(address_sanitizer,
|
||||
AS_HELP_STRING([--with-address-sanitizer],
|
||||
|
|
|
|||
14
setup.py
14
setup.py
|
|
@ -304,6 +304,17 @@ def find_library_file(compiler, libname, std_dirs, paths):
|
|||
else:
|
||||
assert False, "Internal error: Path not found in std_dirs or paths"
|
||||
|
||||
def validate_tzpath():
|
||||
base_tzpath = sysconfig.get_config_var('TZPATH')
|
||||
if not base_tzpath:
|
||||
return
|
||||
|
||||
tzpaths = base_tzpath.split(os.pathsep)
|
||||
bad_paths = [tzpath for tzpath in tzpaths if not os.path.isabs(tzpath)]
|
||||
if bad_paths:
|
||||
raise ValueError('TZPATH must contain only absolute paths, '
|
||||
+ f'found:\n{tzpaths!r}\nwith invalid paths:\n'
|
||||
+ f'{bad_paths!r}')
|
||||
|
||||
def find_module_file(module, dirlist):
|
||||
"""Find a module in a set of possible folders. If it is not found
|
||||
|
|
@ -816,6 +827,8 @@ class PyBuildExt(build_ext):
|
|||
# uses modf().
|
||||
self.add(Extension('_datetime', ['_datetimemodule.c'],
|
||||
libraries=['m']))
|
||||
# zoneinfo module
|
||||
self.add(Extension('_zoneinfo', ['_zoneinfo.c'])),
|
||||
# random number generator implemented in C
|
||||
self.add(Extension("_random", ["_randommodule.c"],
|
||||
extra_compile_args=['-DPy_BUILD_CORE_MODULE']))
|
||||
|
|
@ -2495,6 +2508,7 @@ def main():
|
|||
ProcessPoolExecutor = None
|
||||
|
||||
sys.modules['concurrent.futures.process'] = DummyProcess
|
||||
validate_tzpath()
|
||||
|
||||
# turn off warnings when deprecated modules are imported
|
||||
import warnings
|
||||
|
|
|
|||
Loading…
Reference in New Issue