Defer joining of path segments in the private `PurePathBase` ABC. The new
behaviour matches how the public `PurePath` class handles path segments.
This removes a hard-to-grok difference between the ABCs and the main
classes. It also slightly reduces the size of `PurePath` objects by
eliminating a `_raw_path` slot.
Replace the os.environ.refresh() method with a new
os.reload_environ() function.
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Adam Turner <9087854+AA-Turner@users.noreply.github.com>
The implementation of `Path.glob()` does rather a hacky thing: it calls
`self.with_segments()` to convert the given pattern to a `Path` object, and
then peeks at the private `_raw_path` attribute to see if pathlib removed a
trailing slash from the pattern.
In this patch, we make `glob()` use a new `_parse_pattern()` classmethod
that splits the pattern into parts while preserving information about any
trailing slash. This skips the cost of creating a `Path` object, and avoids
some path anchor normalization, which makes `Path.glob()` slightly faster.
But mostly it's about making the code less naughty.
Co-authored-by: Tomas R. <tomas.roun8@gmail.com>
Each thread specializes a thread-local copy of the bytecode, created on the first RESUME, in free-threaded builds. All copies of the bytecode for a code object are stored in the co_tlbc array on the code object. Threads reserve a globally unique index identifying its copy of the bytecode in all co_tlbc arrays at thread creation and release the index at thread destruction. The first entry in every co_tlbc array always points to the "main" copy of the bytecode that is stored at the end of the code object. This ensures that no bytecode is copied for programs that do not use threads.
Thread-local bytecode can be disabled at runtime by providing either -X tlbc=0 or PYTHON_TLBC=0. Disabling thread-local bytecode also disables specialization.
Concurrent modifications to the bytecode made by the specializing interpreter and instrumentation use atomics, with specialization taking care not to overwrite an instruction that was instrumented concurrently.
GH-113977, GH-120754: Remove unbounded reads from zipfile
Read without a size may read an unbounded amount of data + allocate
unbounded size buffers. Move to capped size reads to prevent potential
issues.
Co-authored-by: Daniel Hillier <daniel.hillier@gmail.com>
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Temporarily ignore warnings about JIT deactivation when perf support is active.
This will be reverted as soon as a way is found to determine at run time whether the interpreter was built with JIT. Currently, this is not possible on Windows.
Co-authored-by: Kirill Podoprigora <kirill.bast9@mail.ru>
Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
Co-authored-by: Pablo Galindo <pablogsal@gmail.com>
Performed an audit of `fileio.c` and `_pyio` and made sure anytime the
fd changes the stat result, if set, is also cleared/changed.
There's one case where it's not cleared, if code would clear it in
__init__, keep the memory allocated and just do another fstat with the
existing memory.
Use the new `PathBase.scandir()` method in `PathBase.walk()`, which greatly
reduces the number of `PathBase.stat()` calls needed when walking.
There are no user-facing changes, because the pathlib ABCs are still
private and `Path.walk()` doesn't use the implementation in its superclass.
Use the new `PathBase.scandir()` method in `PathBase.glob()`, which greatly
reduces the number of `PathBase.stat()` calls needed when globbing.
There are no user-facing changes, because the pathlib ABCs are still
private and `Path.glob()` doesn't use the implementation in its superclass.
The cases generator inserts code to save and restore the stack pointer around
statements that contain escaping calls. To find the beginning of such statements,
we would walk backwards from the escaping call until we encountered a token that
was treated as a statement terminator. This set of terminators should include
preprocessor directives.
Add `pathlib.Path.scandir()` as a trivial wrapper of `os.scandir()`. This
will be used to implement several `PathBase` methods more efficiently,
including methods that provide `Path.copy()`.
Avoid temporary tuple creation when all arguments either positional-only
or vararg.
Objects/setobject.c and Modules/gcmodule.c adapted. This fixes slight
performance regression for set methods, introduced by gh-115112.
Tarfile in the default write mode spends much of its time resolving UIDs
into usernames and GIDs into group names. By caching these mappings, a
significant speedup can be achieved.
In my simple benchmark[1], this extra caching speeds up tarfile by 8x.
[1] https://gist.github.com/jforberg/86af759c796199740c31547ae828aef2
---------
Co-authored-by: Tian Gao <gaogaotiantian@hotmail.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Co-authored-by: Shantanu <12621235+hauntsaninja@users.noreply.github.com>
* add test for the predefined object's attributes
* Include the "object" type in the lists of documented types
* remove 'or' from augment tuple
* 📜🤖 Added by blurb_it.
* Add cross-reference to news
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* Fix format for the function parameter
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* Add space
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* add reference for the 'object'
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* add reference for NotImplemented
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* Change ref:`string <textseq>` as class:`str`
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* remove hyphen from `newly-created`
* Update Doc/reference/datamodel.rst
'dictionaries' to 'dict'
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
* Update predefined attribute types in testPredefinedAttrs
* Change `universal type` as `top type`
* Don't mention about the top type
* Update the description of richcmpfuncs
* Update Doc/library/stdtypes.rst
Co-authored-by: Éric <merwok@netwok.org>
* Revert: Hierarchy Section in Data Model Documentation
* Revert to original explanations of __new__ and __init__ methods in datamodel.rst for improved clarity.
* Update Doc/reference/datamodel.rst
Co-authored-by: Éric <merwok@netwok.org>
* Remove blank line
Co-authored-by: Éric <merwok@netwok.org>
* Use ref:`str <textseq>` instead of :class:`str
Co-authored-by: Éric <merwok@netwok.org>
* Revert changes the description of Other Built-in Types in stdtypes.rst
* Update Doc/reference/datamodel.rst
Co-authored-by: Éric <merwok@netwok.org>
---------
Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: C.A.M. Gerlach <CAM.Gerlach@Gerlach.CAM>
Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
Co-authored-by: Éric <merwok@netwok.org>
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
* Only error messages for ArgumentError and ArgumentTypeError are now
translated.
* ArgumentError is now only used for command line errors, not for logical
errors in the program.
* TypeError is now raised instead of ValueError for some logical errors.
Merge `URL2PathNameTests` and `PathName2URLTests` test cases (which test
only the Windows-specific implementations from `nturl2path`) into the main
`Pathname_Tests` test case for these functions.
Copy/port some test cases for `pathlib.Path.as_uri()` and `from_uri()`.
Previously, if the `ast.AST._fields` attribute was deleted, attempts to create a new `as`t node would crash due to the assumption that `_fields` always had a non-NULL value. Now it has been fixed by adding an extra check to ensure that `_fields` does not have a NULL value (this can happen when you manually remove `_fields` attribute).
blhsing
Barney Gale
Stephen Morton
Peter Bierma
Victor Stinner
Serhiy Storchaka
mpage
Nice Zombies
sobolevn
Kumar Aditya
Tomas R.
Cody Maloney
Lee Dong Wook
simple-is-great
Sergey B Kirpichev
Bénédikt Tran
Jun Komoda
J. Nick Koston
Nico-Posada
Johan Förberg
Furkan Onder
Xuanteng Huang
Brian Schubert
Pablo Galindo Salgado
Kirill Podoprigora
Christian Ullrich
Mark Shannon
Taneli Hukkinen