An object implementing the os.PathLike protocol can represent a file
system path as a str or bytes object.
Therefore, _infer_return_type function should infer os.PathLike[str]
object as str type and os.PathLike[bytes] object as bytes type.
The case of tempfile.tempdir variable being bytes is now handled consistently.
The getters return the right type and no more error of mixing str and bytes unless explicitly caused by the user.
Adds a regression test.
Expands the documentation to clarify the behavior.
Co-authored-by: Eric L <ewl+git@lavar.de>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
The _RandomSequence class in tempfile used to check the current pid every time its rng property was used.
This commit replaces this code with `os.register_at_fork` to reduce the overhead.
This implements things like `list[int]`,
which returns an object of type `types.GenericAlias`.
This object mostly acts as a proxy for `list`,
but has attributes `__origin__` and `__args__`
that allow recovering the parts (with values `list` and `(int,)`.
There is also an approximate notion of type variables;
e.g. `list[T]` has a `__parameters__` attribute equal to `(T,)`.
Type variables are objects of type `typing.TypeVar`.
Moreover, the following tests now check the child process exit code:
* test_os.PtyTests
* test_mailbox.test_lock_conflict()
* test_tempfile.test_process_awareness()
* test_uuid.testIssue8621()
* multiprocessing resource tracker tests
* bpo-30197: Enhance functions swap_attr() and swap_item() in test.support.
They now work when delete replaced attribute or item inside the with
statement. The old value of the attribute or item (or None if it doesn't
exist) now will be assigned to the target of the "as" clause, if there is
one.
* Update docstrings.
when a directory with the chosen name already exists on Windows as well as
on Unix. tempfile.mkstemp() now fails early if parent directory is not
valid (not exists or is a file) on Windows.
when a directory with the chosen name already exists on Windows as well as
on Unix. tempfile.mkstemp() now fails early if parent directory is not
valid (not exists or is a file) on Windows.
I have compared output between pre- and post-patch runs of these tests
to make sure there's nothing missing and nothing broken, on both
Windows and Linux. The only differences I found were actually tests
that were previously *not* run.
successful when called during nulling out of modules during shutdown.
Misleading exception no longer raised when resource warning is emitted
during shutdown.
instead of 6, to reduce the risk of filename collision. The entropy was reduced
when uppercase letters were removed from the charset used to generate random
characters.
Kyungmin Lee
Christian Clauss
Serhiy Storchaka
CAM Gerlach
Eric L
Inada Naoki
Eric W
Hai Shi
Victor Stinner
Guido van Rossum
Batuhan Taşkaya
Anthony Sottile
sth
Victor Stinner
Martin Panter
Gregory P. Smith
Berker Peksag
Zachary Ware
Antoine Pitrou
Tim Golden
Eli Bendersky