Improve performance of `pathlib.Path.absolute()` and `cwd()` by joining paths only when necessary. Also improve
performance of `PurePath.is_absolute()` on Posix by skipping path parsing and normalization.
`ast.Num`, `ast.Str`, `ast.Bytes`, `ast.Ellipsis` and `ast.NameConstant` now all emit deprecation warnings on import, access, instantation or `isinstance()` checks.
Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
Replace `self._canvas` and `self.scanvas`, both bound to `canvas`,
with `self.canvas, which is accessed in other methods.
Replace `_s_` with `screen` and `_s_._canvas` with `canvas`.
Add a comment explaining the unorthodox use of
function turtle.Screen and singleton class turtle._Screen.
* Remove the unused, private, and undocumented name `_ver` and
the commented-out `print` call.
* Don't add math functions to `__all__`. Beginners should learn
to `import math` to access them.
* Gregor Lindel, who wrote this version of turtle, dropped plans
to implement turtle on another toolkit at least a decade ago.
Drop `_dot` code preparing for this, but add a hint comment.
* `_Screen` is meant to be a singleton class. To enforce that,
it needs either a `__new__` that returns the singleton or
`else...raise` in `__iter__`. Merely removing the `if` clauses
as suggested might break something if a user were to call `_Screen`
directly. Leave the code alone until a problem is evident.
* Turtledemo injects into _Screen both _root and _canvas,
configured as it needs them to be. Making _canvas an `__init__`
option would require skipping some but not all of the lines under
'if _Screen._canvas is None:`. Leave working code alone.
* Uncomment builtin removal in pairindextypes
* Use new-style index directive ('builtin') - C API
* Use new-style index directive ('builtin') - Extending
* Use new-style index directive ('builtin') - Library
* Use new-style index directive ('builtin') - Reference
* Use new-style index directive ('builtin') - Tutorial
We also add PyInterpreterState.ceval.own_gil to record if the interpreter actually has its own GIL.
Note that for now we don't actually respect own_gil; all interpreters still share the one GIL. However, PyInterpreterState.ceval.own_gil does reflect PyInterpreterConfig.own_gil. That lie is a temporary one that we will fix when the GIL really becomes per-interpreter.
Here we are doing no more than adding the value for Py_mod_multiple_interpreters and using it for stdlib modules. We will start checking for it in gh-104206 (once PyInterpreterState.ceval.own_gil is added in gh-104204).
In preparation for a per-interpreter GIL, we add PyInterpreterState.ceval.gil, set it to the shared GIL for each interpreter, and use that rather than using _PyRuntime.ceval.gil directly. Note that _PyRuntime.ceval.gil is still the actual GIL.
Add `pathlib.PurePath.with_segments()`, which creates a path object from arguments. This method is called whenever a derivative path is created, such as from `pathlib.PurePath.parent`. Subclasses may override this method to share information between path objects.
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
This argument allows case-sensitive matching to be enabled on Windows, and
case-insensitive matching to be enabled on Posix.
Co-authored-by: Steve Dower <steve.dower@microsoft.com>
This test can fail unnecessarily. In the test we wait for events on two
file descriptors. This is done in a single call to select.epoll's poll()
function. However, it is valid for the OS to return only one event via
poll() and the next via a subsequent call to poll(). This rarely
happens, but it can cause the test to fail despite properly functioning
polling.
Instead, we poll a second time when necessary.
This function no longer makes sense, since its runtime parameter is
no longer used. Use directly _PyThreadState_GET() and
_PyInterpreterState_GET() instead.
Barney Gale
Alex Waygood
Itamar Ostricher
Terry Jan Reedy
Nikita Sobolev
Adam Turner
Sam Morris
Victor Stinner
Jacob Bower
Eric Snow
Erlend E. Aasland
Alexey Namyotkin
Tian Gao
Mark Shannon
Kumar Aditya
Irit Katriel
sunmy2019
Dong-hee Na
Brandt Bucher
Carl Meyer
Michael Blahay
Hugo van Kemenade
Shantanu
Serhiy Storchaka
Jelle Zijlstra
Gleb Smirnoff
Kevin Krakauer
Pablo Galindo Salgado
Christopher Chavez
Lysandros Nikolaou