cpython/Lib/pprint.py

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# Author: Fred L. Drake, Jr.
2001-10-09 17:53:48 -03:00
# fdrake@acm.org
#
# This is a simple little module I wrote to make life easier. I didn't
# see anything quite like it in the library, though I may have overlooked
# something. I wrote this when I was trying to read some heavily nested
# tuples with fairly non-descriptive content. This is modeled very much
# after Lisp/Scheme - style pretty-printing of lists. If you find it
# useful, thank small children who sleep at night.
"""Support to pretty-print lists, tuples, & dictionaries recursively.
Very simple, but useful, especially in debugging data structures.
Classes
-------
PrettyPrinter()
Handle pretty-printing operations onto a stream using a configured
set of formatting parameters.
Functions
---------
pformat()
Format a Python object into a pretty-printed representation.
pprint()
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Pretty-print a Python object to a stream [default is sys.stdout].
saferepr()
Generate a 'standard' repr()-like value, but protect against recursive
data structures.
"""
import re
import sys as _sys
from collections import OrderedDict as _OrderedDict
from io import StringIO as _StringIO
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__all__ = ["pprint","pformat","isreadable","isrecursive","saferepr",
"PrettyPrinter"]
def pprint(object, stream=None, indent=1, width=80, depth=None, *,
compact=False):
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"""Pretty-print a Python object to a stream [default is sys.stdout]."""
printer = PrettyPrinter(
stream=stream, indent=indent, width=width, depth=depth,
compact=compact)
printer.pprint(object)
def pformat(object, indent=1, width=80, depth=None, *, compact=False):
"""Format a Python object into a pretty-printed representation."""
return PrettyPrinter(indent=indent, width=width, depth=depth,
compact=compact).pformat(object)
def saferepr(object):
"""Version of repr() which can handle recursive data structures."""
return _safe_repr(object, {}, None, 0)[0]
def isreadable(object):
"""Determine if saferepr(object) is readable by eval()."""
return _safe_repr(object, {}, None, 0)[1]
def isrecursive(object):
"""Determine if object requires a recursive representation."""
return _safe_repr(object, {}, None, 0)[2]
class _safe_key:
"""Helper function for key functions when sorting unorderable objects.
The wrapped-object will fallback to an Py2.x style comparison for
unorderable types (sorting first comparing the type name and then by
the obj ids). Does not work recursively, so dict.items() must have
_safe_key applied to both the key and the value.
"""
__slots__ = ['obj']
def __init__(self, obj):
self.obj = obj
def __lt__(self, other):
try:
rv = self.obj.__lt__(other.obj)
except TypeError:
rv = NotImplemented
if rv is NotImplemented:
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rv = (str(type(self.obj)), id(self.obj)) < \
(str(type(other.obj)), id(other.obj))
return rv
def _safe_tuple(t):
"Helper function for comparing 2-tuples"
return _safe_key(t[0]), _safe_key(t[1])
class PrettyPrinter:
def __init__(self, indent=1, width=80, depth=None, stream=None, *,
compact=False):
"""Handle pretty printing operations onto a stream using a set of
configured parameters.
indent
Number of spaces to indent for each level of nesting.
width
Attempted maximum number of columns in the output.
depth
The maximum depth to print out nested structures.
stream
The desired output stream. If omitted (or false), the standard
output stream available at construction will be used.
compact
If true, several items will be combined in one line.
"""
indent = int(indent)
width = int(width)
assert indent >= 0, "indent must be >= 0"
assert depth is None or depth > 0, "depth must be > 0"
assert width, "width must be != 0"
self._depth = depth
self._indent_per_level = indent
self._width = width
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if stream is not None:
self._stream = stream
else:
self._stream = _sys.stdout
self._compact = bool(compact)
def pprint(self, object):
self._format(object, self._stream, 0, 0, {}, 0)
self._stream.write("\n")
def pformat(self, object):
sio = _StringIO()
self._format(object, sio, 0, 0, {}, 0)
return sio.getvalue()
def isrecursive(self, object):
return self.format(object, {}, 0, 0)[2]
def isreadable(self, object):
s, readable, recursive = self.format(object, {}, 0, 0)
return readable and not recursive
def _format(self, object, stream, indent, allowance, context, level):
level = level + 1
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objid = id(object)
if objid in context:
stream.write(_recursion(object))
self._recursive = True
self._readable = False
return
rep = self._repr(object, context, level - 1)
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typ = type(object)
max_width = self._width - 1 - indent - allowance
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sepLines = len(rep) > max_width
write = stream.write
if sepLines:
r = getattr(typ, "__repr__", None)
if issubclass(typ, dict):
write('{')
if self._indent_per_level > 1:
write((self._indent_per_level - 1) * ' ')
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length = len(object)
if length:
context[objid] = 1
indent = indent + self._indent_per_level
if issubclass(typ, _OrderedDict):
items = list(object.items())
else:
items = sorted(object.items(), key=_safe_tuple)
key, ent = items[0]
rep = self._repr(key, context, level)
write(rep)
write(': ')
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self._format(ent, stream, indent + len(rep) + 2,
allowance + 1, context, level)
if length > 1:
for key, ent in items[1:]:
rep = self._repr(key, context, level)
write(',\n%s%s: ' % (' '*indent, rep))
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self._format(ent, stream, indent + len(rep) + 2,
allowance + 1, context, level)
indent = indent - self._indent_per_level
del context[objid]
write('}')
return
Merged revisions 60176-60209 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60178 | georg.brandl | 2008-01-21 22:05:49 +0100 (Mon, 21 Jan 2008) | 2 lines #1715: include sub-extension modules in pydoc text output. ........ r60179 | georg.brandl | 2008-01-21 22:14:21 +0100 (Mon, 21 Jan 2008) | 2 lines Add a "const" to make gcc happy. ........ r60180 | georg.brandl | 2008-01-21 22:19:07 +0100 (Mon, 21 Jan 2008) | 2 lines Add the correct build dir when building with pydebug. ........ r60181 | georg.brandl | 2008-01-21 22:23:15 +0100 (Mon, 21 Jan 2008) | 3 lines Patch #1720595: add T_BOOL to the range of structmember types. Patch by Angelo Mottola, reviewed by MvL, tests by me. ........ r60182 | georg.brandl | 2008-01-21 22:28:32 +0100 (Mon, 21 Jan 2008) | 2 lines Reformat some ugly code. ........ r60187 | brett.cannon | 2008-01-22 00:50:16 +0100 (Tue, 22 Jan 2008) | 4 lines Make's MAKEFLAGS variable is set to a string containing the single-letter arguments to Make. This means there are no hyphens. Fix the '-s' check to silence distutils to now work. ........ r60188 | gregory.p.smith | 2008-01-22 01:19:41 +0100 (Tue, 22 Jan 2008) | 3 lines accepts and closes issue #1221598: adds an optional callback to ftplib.FTP storbinary() and storlines() methods. ........ r60189 | gregory.p.smith | 2008-01-22 02:12:02 +0100 (Tue, 22 Jan 2008) | 2 lines Replace spam.acquire() try: ... finally: spam.release() with "with spam:" ........ r60190 | gregory.p.smith | 2008-01-22 02:20:42 +0100 (Tue, 22 Jan 2008) | 4 lines - Fix Issue #1703448: A joined thread could show up in the threading.enumerate() list after the join() for a brief period until it actually exited. ........ r60193 | georg.brandl | 2008-01-22 08:53:31 +0100 (Tue, 22 Jan 2008) | 2 lines Fix \xhh specs, #1889. ........ r60198 | christian.heimes | 2008-01-22 16:01:25 +0100 (Tue, 22 Jan 2008) | 1 line Fixed a missing (X) in define ........ r60199 | christian.heimes | 2008-01-22 16:25:18 +0100 (Tue, 22 Jan 2008) | 2 lines Don't repeat yourself Added the macros PyModule_AddIntMacro and PyModule_AddStringMacro. They shorten PyModule_AddIntConstant(m, "AF_INET", AF_INET) to PyModule_AddIntMacro(m, AF_INET) ........ r60201 | raymond.hettinger | 2008-01-22 20:51:41 +0100 (Tue, 22 Jan 2008) | 1 line Document when to use izip_longest(). ........ r60202 | georg.brandl | 2008-01-22 20:56:03 +0100 (Tue, 22 Jan 2008) | 2 lines Fix for #1087741 patch. ........ r60203 | raymond.hettinger | 2008-01-22 21:18:53 +0100 (Tue, 22 Jan 2008) | 1 line Give zip() the same guarantee as izip() for left-to-right evaluation. ........ r60204 | raymond.hettinger | 2008-01-22 23:09:26 +0100 (Tue, 22 Jan 2008) | 1 line Improve variable name in sample code ........ r60205 | gregory.p.smith | 2008-01-23 00:15:34 +0100 (Wed, 23 Jan 2008) | 2 lines docstring and comment updates suggested by Giampaolo Rodola' ........ r60207 | raymond.hettinger | 2008-01-23 01:04:40 +0100 (Wed, 23 Jan 2008) | 1 line Let pprint() support sets and frozensets (suggested by David Mertz). ........ r60208 | guido.van.rossum | 2008-01-23 02:18:27 +0100 (Wed, 23 Jan 2008) | 4 lines I'm tired of these tests breaking at Google due to our large number of users and groups in LDAP/NIS. So I'm limiting the extra-heavy part of the tests to passwd/group files with at most 1000 entries. ........
2008-01-23 04:24:23 -04:00
if ((issubclass(typ, list) and r is list.__repr__) or
(issubclass(typ, tuple) and r is tuple.__repr__) or
(issubclass(typ, set) and r is set.__repr__) or
(issubclass(typ, frozenset) and r is frozenset.__repr__)
):
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length = len(object)
if issubclass(typ, list):
write('[')
endchar = ']'
elif issubclass(typ, tuple):
write('(')
endchar = ')'
else:
Merged revisions 60245-60277 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60246 | guido.van.rossum | 2008-01-24 18:58:05 +0100 (Thu, 24 Jan 2008) | 2 lines Fix test67.py from issue #1303614. ........ r60248 | raymond.hettinger | 2008-01-24 19:05:54 +0100 (Thu, 24 Jan 2008) | 1 line Clean-up and speed-up code by accessing numerator/denominator directly. There's no reason to enforce readonliness ........ r60249 | raymond.hettinger | 2008-01-24 19:12:23 +0100 (Thu, 24 Jan 2008) | 1 line Revert 60189 and restore performance. ........ r60250 | guido.van.rossum | 2008-01-24 19:21:02 +0100 (Thu, 24 Jan 2008) | 5 lines News about recently fixed crashers: - A few crashers fixed: weakref_in_del.py (issue #1377858); loosing_dict_ref.py (issue #1303614, test67.py); borrowed_ref_[34].py (not in tracker). ........ r60252 | thomas.heller | 2008-01-24 19:36:27 +0100 (Thu, 24 Jan 2008) | 7 lines Use a PyDictObject again for the array type cache; retrieving items from the WeakValueDictionary was slower by nearly a factor of 3. To avoid leaks, weakref proxies for the array types are put into the cache dict, with weakref callbacks that removes the entries when the type goes away. ........ r60253 | thomas.heller | 2008-01-24 19:54:12 +0100 (Thu, 24 Jan 2008) | 2 lines Replace Py_BuildValue with PyTuple_Pack because it is faster. Also add a missing DECREF. ........ r60254 | raymond.hettinger | 2008-01-24 20:05:29 +0100 (Thu, 24 Jan 2008) | 1 line Add support for trunc(). ........ r60255 | thomas.heller | 2008-01-24 20:15:02 +0100 (Thu, 24 Jan 2008) | 5 lines Invert the checks in get_[u]long and get_[u]longlong. The intent was to not accept float types; the result was that integer-like objects were not accepted. Ported from release25-maint. ........ r60256 | raymond.hettinger | 2008-01-24 20:30:19 +0100 (Thu, 24 Jan 2008) | 1 line Add support for int(r) just like the other numeric classes. ........ r60263 | raymond.hettinger | 2008-01-24 22:23:58 +0100 (Thu, 24 Jan 2008) | 1 line Expand tests to include nested graph structures. ........ r60264 | raymond.hettinger | 2008-01-24 22:47:56 +0100 (Thu, 24 Jan 2008) | 1 line Shorter pprint's for empty sets and frozensets. Fix indentation of frozensets. Add tests including two complex data structures. ........ r60265 | amaury.forgeotdarc | 2008-01-24 23:51:18 +0100 (Thu, 24 Jan 2008) | 14 lines #1920: when considering a block starting by "while 0", the compiler optimized the whole construct away, even when an 'else' clause is present:: while 0: print("no") else: print("yes") did not generate any code at all. Now the compiler emits the 'else' block, like it already does for 'if' statements. Will backport. ........ r60266 | amaury.forgeotdarc | 2008-01-24 23:59:25 +0100 (Thu, 24 Jan 2008) | 2 lines News entry for r60265 (Issue 1920). ........ r60269 | raymond.hettinger | 2008-01-25 00:50:26 +0100 (Fri, 25 Jan 2008) | 1 line More code cleanup. Remove unnecessary indirection to useless class methods. ........ r60270 | raymond.hettinger | 2008-01-25 01:21:54 +0100 (Fri, 25 Jan 2008) | 1 line Add support for copy, deepcopy, and pickle. ........ r60271 | raymond.hettinger | 2008-01-25 01:33:45 +0100 (Fri, 25 Jan 2008) | 1 line Mark todos and review comments. ........ r60272 | raymond.hettinger | 2008-01-25 02:13:12 +0100 (Fri, 25 Jan 2008) | 1 line Add one other review comment. ........ r60273 | raymond.hettinger | 2008-01-25 02:23:38 +0100 (Fri, 25 Jan 2008) | 1 line Fix-up signature for approximation. ........ r60274 | raymond.hettinger | 2008-01-25 02:46:33 +0100 (Fri, 25 Jan 2008) | 1 line More design notes ........ r60276 | neal.norwitz | 2008-01-25 07:37:23 +0100 (Fri, 25 Jan 2008) | 6 lines Make the test more robust by trying to reconnect up to 3 times in case there were transient failures. This will hopefully silence the buildbots for this test. As we find other tests that have a problem, we can fix with a similar strategy assuming it is successful. It worked on my box in a loop for 10+ runs where it would have an exception otherwise. ........ r60277 | neal.norwitz | 2008-01-25 09:04:16 +0100 (Fri, 25 Jan 2008) | 4 lines Add prototypes to get the mathmodule.c to compile on OSF1 5.1 (Tru64) and eliminate a compiler warning in floatobject.c. There might be a better way to go about this, but it should be good enough for now. ........
2008-01-25 07:23:10 -04:00
if not length:
write(rep)
Merged revisions 60245-60277 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r60246 | guido.van.rossum | 2008-01-24 18:58:05 +0100 (Thu, 24 Jan 2008) | 2 lines Fix test67.py from issue #1303614. ........ r60248 | raymond.hettinger | 2008-01-24 19:05:54 +0100 (Thu, 24 Jan 2008) | 1 line Clean-up and speed-up code by accessing numerator/denominator directly. There's no reason to enforce readonliness ........ r60249 | raymond.hettinger | 2008-01-24 19:12:23 +0100 (Thu, 24 Jan 2008) | 1 line Revert 60189 and restore performance. ........ r60250 | guido.van.rossum | 2008-01-24 19:21:02 +0100 (Thu, 24 Jan 2008) | 5 lines News about recently fixed crashers: - A few crashers fixed: weakref_in_del.py (issue #1377858); loosing_dict_ref.py (issue #1303614, test67.py); borrowed_ref_[34].py (not in tracker). ........ r60252 | thomas.heller | 2008-01-24 19:36:27 +0100 (Thu, 24 Jan 2008) | 7 lines Use a PyDictObject again for the array type cache; retrieving items from the WeakValueDictionary was slower by nearly a factor of 3. To avoid leaks, weakref proxies for the array types are put into the cache dict, with weakref callbacks that removes the entries when the type goes away. ........ r60253 | thomas.heller | 2008-01-24 19:54:12 +0100 (Thu, 24 Jan 2008) | 2 lines Replace Py_BuildValue with PyTuple_Pack because it is faster. Also add a missing DECREF. ........ r60254 | raymond.hettinger | 2008-01-24 20:05:29 +0100 (Thu, 24 Jan 2008) | 1 line Add support for trunc(). ........ r60255 | thomas.heller | 2008-01-24 20:15:02 +0100 (Thu, 24 Jan 2008) | 5 lines Invert the checks in get_[u]long and get_[u]longlong. The intent was to not accept float types; the result was that integer-like objects were not accepted. Ported from release25-maint. ........ r60256 | raymond.hettinger | 2008-01-24 20:30:19 +0100 (Thu, 24 Jan 2008) | 1 line Add support for int(r) just like the other numeric classes. ........ r60263 | raymond.hettinger | 2008-01-24 22:23:58 +0100 (Thu, 24 Jan 2008) | 1 line Expand tests to include nested graph structures. ........ r60264 | raymond.hettinger | 2008-01-24 22:47:56 +0100 (Thu, 24 Jan 2008) | 1 line Shorter pprint's for empty sets and frozensets. Fix indentation of frozensets. Add tests including two complex data structures. ........ r60265 | amaury.forgeotdarc | 2008-01-24 23:51:18 +0100 (Thu, 24 Jan 2008) | 14 lines #1920: when considering a block starting by "while 0", the compiler optimized the whole construct away, even when an 'else' clause is present:: while 0: print("no") else: print("yes") did not generate any code at all. Now the compiler emits the 'else' block, like it already does for 'if' statements. Will backport. ........ r60266 | amaury.forgeotdarc | 2008-01-24 23:59:25 +0100 (Thu, 24 Jan 2008) | 2 lines News entry for r60265 (Issue 1920). ........ r60269 | raymond.hettinger | 2008-01-25 00:50:26 +0100 (Fri, 25 Jan 2008) | 1 line More code cleanup. Remove unnecessary indirection to useless class methods. ........ r60270 | raymond.hettinger | 2008-01-25 01:21:54 +0100 (Fri, 25 Jan 2008) | 1 line Add support for copy, deepcopy, and pickle. ........ r60271 | raymond.hettinger | 2008-01-25 01:33:45 +0100 (Fri, 25 Jan 2008) | 1 line Mark todos and review comments. ........ r60272 | raymond.hettinger | 2008-01-25 02:13:12 +0100 (Fri, 25 Jan 2008) | 1 line Add one other review comment. ........ r60273 | raymond.hettinger | 2008-01-25 02:23:38 +0100 (Fri, 25 Jan 2008) | 1 line Fix-up signature for approximation. ........ r60274 | raymond.hettinger | 2008-01-25 02:46:33 +0100 (Fri, 25 Jan 2008) | 1 line More design notes ........ r60276 | neal.norwitz | 2008-01-25 07:37:23 +0100 (Fri, 25 Jan 2008) | 6 lines Make the test more robust by trying to reconnect up to 3 times in case there were transient failures. This will hopefully silence the buildbots for this test. As we find other tests that have a problem, we can fix with a similar strategy assuming it is successful. It worked on my box in a loop for 10+ runs where it would have an exception otherwise. ........ r60277 | neal.norwitz | 2008-01-25 09:04:16 +0100 (Fri, 25 Jan 2008) | 4 lines Add prototypes to get the mathmodule.c to compile on OSF1 5.1 (Tru64) and eliminate a compiler warning in floatobject.c. There might be a better way to go about this, but it should be good enough for now. ........
2008-01-25 07:23:10 -04:00
return
if typ is set:
write('{')
endchar = '}'
else:
write(typ.__name__)
write('({')
endchar = '})'
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indent += len(typ.__name__) + 1
object = sorted(object, key=_safe_key)
if self._indent_per_level > 1:
write((self._indent_per_level - 1) * ' ')
if length:
context[objid] = 1
self._format_items(object, stream,
indent + self._indent_per_level,
allowance + 1, context, level)
del context[objid]
if issubclass(typ, tuple) and length == 1:
write(',')
write(endchar)
return
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if issubclass(typ, str) and len(object) > 0 and r is str.__repr__:
chunks = []
lines = object.splitlines(True)
if level == 1:
indent += 1
max_width -= 2
for i, line in enumerate(lines):
rep = repr(line)
if len(rep) <= max_width:
chunks.append(rep)
else:
# A list of alternating (non-space, space) strings
parts = re.split(r'(\s+)', line) + ['']
current = ''
for i in range(0, len(parts), 2):
part = parts[i] + parts[i+1]
candidate = current + part
if len(repr(candidate)) > max_width:
if current:
chunks.append(repr(current))
current = part
else:
current = candidate
if current:
chunks.append(repr(current))
if len(chunks) == 1:
write(rep)
return
if level == 1:
write('(')
for i, rep in enumerate(chunks):
if i > 0:
write('\n' + ' '*indent)
write(rep)
if level == 1:
write(')')
return
write(rep)
def _format_items(self, items, stream, indent, allowance, context, level):
write = stream.write
delimnl = ',\n' + ' ' * indent
delim = ''
width = max_width = self._width - indent - allowance + 2
for ent in items:
if self._compact:
rep = self._repr(ent, context, level)
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w = len(rep) + 2
if width < w:
width = max_width
if delim:
delim = delimnl
if width >= w:
width -= w
write(delim)
delim = ', '
write(rep)
continue
write(delim)
delim = delimnl
self._format(ent, stream, indent, allowance, context, level)
def _repr(self, object, context, level):
repr, readable, recursive = self.format(object, context.copy(),
self._depth, level)
if not readable:
self._readable = False
if recursive:
self._recursive = True
return repr
def format(self, object, context, maxlevels, level):
"""Format object for a specific context, returning a string
and flags indicating whether the representation is 'readable'
and whether the object represents a recursive construct.
"""
return _safe_repr(object, context, maxlevels, level)
# Return triple (repr_string, isreadable, isrecursive).
def _safe_repr(object, context, maxlevels, level):
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typ = type(object)
if typ is str:
if 'locale' not in _sys.modules:
return repr(object), True, False
if "'" in object and '"' not in object:
closure = '"'
quotes = {'"': '\\"'}
else:
closure = "'"
quotes = {"'": "\\'"}
qget = quotes.get
sio = _StringIO()
write = sio.write
for char in object:
if char.isalpha():
write(char)
else:
write(qget(char, repr(char)[1:-1]))
return ("%s%s%s" % (closure, sio.getvalue(), closure)), True, False
r = getattr(typ, "__repr__", None)
if issubclass(typ, dict) and r is dict.__repr__:
if not object:
return "{}", True, False
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objid = id(object)
Merged revisions 63119-63128,63130-63131,63133,63135-63144,63146-63148,63151-63152,63155-63165,63167-63176,63181-63186,63188-63189 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r63119 | benjamin.peterson | 2008-05-11 20:41:23 -0400 (Sun, 11 May 2008) | 2 lines #2196 hasattr now allows SystemExit and KeyboardInterrupt to propagate ........ r63122 | benjamin.peterson | 2008-05-11 20:46:49 -0400 (Sun, 11 May 2008) | 2 lines make message slightly more informative, so there's no chance of misunderstanding it ........ r63158 | ronald.oussoren | 2008-05-12 07:24:33 -0400 (Mon, 12 May 2008) | 5 lines Remove references to platform 'mac' The 'mac' platform (that is, os.name == 'mac') was used for the MacOS 9 port, which is no longer supported (as of Python 2.4 IIRC). ........ r63159 | ronald.oussoren | 2008-05-12 07:31:05 -0400 (Mon, 12 May 2008) | 8 lines MacOSX: remove dependency on Carbon package for urllib This patch removes the dependency on the Carbon package from urllib. The mac-specific code for getting proxy configuration is now writting in Python using ctypes and uses the SystemConfiguration framework instead of InternetConfig. Also provides a mac-specific implementation of proxy_bypass. ........ r63162 | eric.smith | 2008-05-12 10:00:01 -0400 (Mon, 12 May 2008) | 1 line Added 'n' presentation type for integers. ........ r63164 | georg.brandl | 2008-05-12 12:26:52 -0400 (Mon, 12 May 2008) | 2 lines #1713041: fix pprint's handling of maximum depth. ........ r63170 | georg.brandl | 2008-05-12 12:53:42 -0400 (Mon, 12 May 2008) | 2 lines Fix parameter name for enumerate(). ........ r63173 | georg.brandl | 2008-05-12 13:01:58 -0400 (Mon, 12 May 2008) | 2 lines #2766: remove code without effect. ........ r63174 | georg.brandl | 2008-05-12 13:04:10 -0400 (Mon, 12 May 2008) | 3 lines #2767: don't clear globs in run() call, since they could be needed in tearDown, which clears them at the end. ........ r63175 | georg.brandl | 2008-05-12 13:14:51 -0400 (Mon, 12 May 2008) | 2 lines #1760: try-except-finally is one statement since PEP 341. ........ r63186 | amaury.forgeotdarc | 2008-05-12 17:30:24 -0400 (Mon, 12 May 2008) | 2 lines Sync code with documentation, and remove Win95 support in winsound module. ........ r63189 | amaury.forgeotdarc | 2008-05-12 18:21:39 -0400 (Mon, 12 May 2008) | 3 lines Adapt test_pyclbr to the new version of urllib.py: The new mac-specific functions must be ignored. ........
2008-05-15 23:54:33 -03:00
if maxlevels and level >= maxlevels:
return "{...}", False, objid in context
if objid in context:
return _recursion(object), False, True
context[objid] = 1
readable = True
recursive = False
components = []
append = components.append
level += 1
saferepr = _safe_repr
items = sorted(object.items(), key=_safe_tuple)
Restructure comparison dramatically. There is no longer a default *ordering* between objects; there is only a default equality test (defined by an object being equal to itself only). Read the comment in object.c. The current implementation never uses a three-way comparison to compute a rich comparison, but it does use a rich comparison to compute a three-way comparison. I'm not quite done ripping out all the calls to PyObject_Compare/Cmp, or replacing tp_compare implementations with tp_richcompare implementations; but much of that has happened (to make most unit tests pass). The following tests still fail, because I need help deciding or understanding: test_codeop -- depends on comparing code objects test_datetime -- need Tim Peters' opinion test_marshal -- depends on comparing code objects test_mutants -- need help understanding it The problem with test_codeop and test_marshal is this: these tests compare two different code objects and expect them to be equal. Is that still a feature we'd like to support? I've temporarily removed the comparison and hash code from code objects, so they use the default (equality by pointer only) comparison. For the other two tests, run them to see for yourself. (There may be more failing test with "-u all".) A general problem with getting lots of these tests to pass is the reality that for object types that have a natural total ordering, implementing __cmp__ is much more convenient than implementing __eq__, __ne__, __lt__, and so on. Should we go back to allowing __cmp__ to provide a total ordering? Should we provide some other way to implement rich comparison with a single method override? Alex proposed a __key__() method; I've considered a __richcmp__() method. Or perhaps __cmp__() just shouldn't be killed off...
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for k, v in items:
krepr, kreadable, krecur = saferepr(k, context, maxlevels, level)
vrepr, vreadable, vrecur = saferepr(v, context, maxlevels, level)
append("%s: %s" % (krepr, vrepr))
readable = readable and kreadable and vreadable
if krecur or vrecur:
recursive = True
del context[objid]
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return "{%s}" % ", ".join(components), readable, recursive
if (issubclass(typ, list) and r is list.__repr__) or \
(issubclass(typ, tuple) and r is tuple.__repr__):
if issubclass(typ, list):
if not object:
return "[]", True, False
format = "[%s]"
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elif len(object) == 1:
format = "(%s,)"
else:
if not object:
return "()", True, False
format = "(%s)"
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objid = id(object)
Merged revisions 63119-63128,63130-63131,63133,63135-63144,63146-63148,63151-63152,63155-63165,63167-63176,63181-63186,63188-63189 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r63119 | benjamin.peterson | 2008-05-11 20:41:23 -0400 (Sun, 11 May 2008) | 2 lines #2196 hasattr now allows SystemExit and KeyboardInterrupt to propagate ........ r63122 | benjamin.peterson | 2008-05-11 20:46:49 -0400 (Sun, 11 May 2008) | 2 lines make message slightly more informative, so there's no chance of misunderstanding it ........ r63158 | ronald.oussoren | 2008-05-12 07:24:33 -0400 (Mon, 12 May 2008) | 5 lines Remove references to platform 'mac' The 'mac' platform (that is, os.name == 'mac') was used for the MacOS 9 port, which is no longer supported (as of Python 2.4 IIRC). ........ r63159 | ronald.oussoren | 2008-05-12 07:31:05 -0400 (Mon, 12 May 2008) | 8 lines MacOSX: remove dependency on Carbon package for urllib This patch removes the dependency on the Carbon package from urllib. The mac-specific code for getting proxy configuration is now writting in Python using ctypes and uses the SystemConfiguration framework instead of InternetConfig. Also provides a mac-specific implementation of proxy_bypass. ........ r63162 | eric.smith | 2008-05-12 10:00:01 -0400 (Mon, 12 May 2008) | 1 line Added 'n' presentation type for integers. ........ r63164 | georg.brandl | 2008-05-12 12:26:52 -0400 (Mon, 12 May 2008) | 2 lines #1713041: fix pprint's handling of maximum depth. ........ r63170 | georg.brandl | 2008-05-12 12:53:42 -0400 (Mon, 12 May 2008) | 2 lines Fix parameter name for enumerate(). ........ r63173 | georg.brandl | 2008-05-12 13:01:58 -0400 (Mon, 12 May 2008) | 2 lines #2766: remove code without effect. ........ r63174 | georg.brandl | 2008-05-12 13:04:10 -0400 (Mon, 12 May 2008) | 3 lines #2767: don't clear globs in run() call, since they could be needed in tearDown, which clears them at the end. ........ r63175 | georg.brandl | 2008-05-12 13:14:51 -0400 (Mon, 12 May 2008) | 2 lines #1760: try-except-finally is one statement since PEP 341. ........ r63186 | amaury.forgeotdarc | 2008-05-12 17:30:24 -0400 (Mon, 12 May 2008) | 2 lines Sync code with documentation, and remove Win95 support in winsound module. ........ r63189 | amaury.forgeotdarc | 2008-05-12 18:21:39 -0400 (Mon, 12 May 2008) | 3 lines Adapt test_pyclbr to the new version of urllib.py: The new mac-specific functions must be ignored. ........
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if maxlevels and level >= maxlevels:
return format % "...", False, objid in context
if objid in context:
return _recursion(object), False, True
context[objid] = 1
readable = True
recursive = False
components = []
append = components.append
level += 1
for o in object:
orepr, oreadable, orecur = _safe_repr(o, context, maxlevels, level)
append(orepr)
if not oreadable:
readable = False
if orecur:
recursive = True
del context[objid]
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return format % ", ".join(components), readable, recursive
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rep = repr(object)
return rep, (rep and not rep.startswith('<')), False
def _recursion(object):
return ("<Recursion on %s with id=%s>"
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% (type(object).__name__, id(object)))
def _perfcheck(object=None):
import time
if object is None:
object = [("string", (1, 2), [3, 4], {5: 6, 7: 8})] * 100000
p = PrettyPrinter()
t1 = time.time()
_safe_repr(object, {}, None, 0)
t2 = time.time()
p.pformat(object)
t3 = time.time()
print("_safe_repr:", t2 - t1)
print("pformat:", t3 - t2)
if __name__ == "__main__":
_perfcheck()