Serhiy Storchaka [Tue, 22 Feb 2022 07:51:51 +0000 (09:51 +0200)]
bpo-46820: Fix a SyntaxError in a numeric literal followed by "not in" (GH-31479)
Fix parsing a numeric literal immediately (without spaces) followed by
"not in" keywords, like in "1not in x". Now the parser only emits
a warning, not a syntax error.
bpo-46811: Make test suite support Expat >=2.4.5 (GH-31453)
Curly brackets were never allowed in namespace URIs
according to RFC 3986, and so-called namespace-validating
XML parsers have the right to reject them a invalid URIs.
libexpat >=2.4.5 has become strcter in that regard due to
related security issues; with ET.XML instantiating a
namespace-aware parser under the hood, this test has no
future in CPython.
Lital Natan [Sun, 20 Feb 2022 16:02:10 +0000 (18:02 +0200)]
bpo-39327: Close file descriptors as soon as possible in shutil.rmtree (GH-31384)
It fixes the "Text File Busy" OSError when using 'rmtree' on a
windows-managed filesystem in via the VirtualBox shared folder
(and possible other scenarios like a windows-managed network file
system).
Nikita Sobolev [Sat, 19 Feb 2022 01:53:29 +0000 (04:53 +0300)]
bpo-46571: improve `typing.no_type_check` to skip foreign objects (GH-31042)
There are several changes:
1. We now don't explicitly check for any base / sub types, because new name check covers it
2. I've also checked that `no_type_check` do not modify foreign functions. It was the same as with `type`s
3. I've also covered `except TypeError` in `no_type_check` with a simple test case, it was not covered at all
4. I also felt like adding `lambda` test is a good idea: because `lambda` is a bit of both in class bodies: a function and an assignment
Guido van Rossum [Fri, 18 Feb 2022 05:30:44 +0000 (21:30 -0800)]
bpo-46752: Slight improvements to TaskGroup API (GH-31398)
* Remove task group names (for now)
We're not sure that they are needed, and once in the code
we would never be able to get rid of them.
Yury wrote:
> Ideally, there should be a way for someone to build a "trace"
> of taskgroups/task leading to the current running task.
> We could do that using contextvars, but I'm not sure we should
> do that in 3.11.
Géry Ogam [Thu, 17 Feb 2022 12:20:40 +0000 (13:20 +0100)]
Update html.parser.rst (GH-30678)
This PR for the documentation of the [html.parser](https://docs.python.org/3/library/html.parser.html) module will
- fix a terminology mistake (‘start of a tag’ -> ‘start tag of an element’);
- mention the parameter names of the `HTMLParser.handle_*` methods where missing.
Brian Faherty [Thu, 17 Feb 2022 12:17:43 +0000 (07:17 -0500)]
bpo-41086: Add exception for uninstantiated interpolation (configparser) (GH-21062)
* Add exception for uninstantiated interpolation (configparser)
The current feedback when users try to pass an uninstantiated
interpolation into a ConfigParser is an error message that does not help
users solve the problem. This current error of `TypeError: before_set()
missing 1 required positional argument: 'value'` does not display until
the parser is used, which usually results in the assumption that
instantiation of the parser was done correctly. The new exception of
InterpolationTypeError, will be raised on the line where the
ConfigParser is instantiated. This will result in users see the line
that has the error in their backtrace for faster debugging.
There have been a number of bugs created in the issue tracker, which
could have been addressed by:
https://bugs.python.org/issue26831 and https://bugs.python.org/issue26469
* 📜🤖 Added by blurb_it.
* Replace custom Error with TypeError
Per feedback from @iritkatriel, the custom InterpolationTypeError has
been dropped in favour of a TypeError with a custom message, and the
unittests have been expanded.
aha79 [Thu, 17 Feb 2022 03:28:18 +0000 (04:28 +0100)]
bpo-46333: Honor `module` parameter in ForwardRef (GH-30536)
The `module` parameter carries semantic information about the forward ref.
Forward refs are different if they refer to different module even if they
have the same name. This affects the `__eq__`, `__repr__` and `__hash__` methods.
Co-authored-by: Andreas Hangauer <andreas.hangauer@siemens.com> Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com> Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
asyncio/taskgroups.py is an adaptation of taskgroup.py from EdgeDb, with the following key changes:
- Allow creating new tasks as long as the last task hasn't finished
- Raise [Base]ExceptionGroup (directly) rather than TaskGroupError deriving from MultiError
- Instead of monkey-patching the parent task's cancel() method,
add a new public API to Task
The Task class has a new internal flag, `_cancel_requested`, which is set when `.cancel()` is called successfully. The `.cancelling()` method returns the value of this flag. Further `.cancel()` calls while this flag is set return False. To reset this flag, call `.uncancel()`.
Thus, a Task that catches and ignores `CancelledError` should call `.uncancel()` if it wants to be cancellable again; until it does so, it is deemed to be busy with uninterruptible cleanup.
This new Task API helps solve the problem where TaskGroup needs to distinguish between whether the parent task being cancelled "from the outside" vs. "from inside".
Co-authored-by: Yury Selivanov <yury@edgedb.com> Co-authored-by: Andrew Svetlov <andrew.svetlov@gmail.com>
Eric Snow [Tue, 15 Feb 2022 00:36:51 +0000 (17:36 -0700)]
bpo-46541: Discover the global strings. (gh-31346)
Instead of manually enumerating the global strings in generate_global_objects.py, we extrapolate the list from usage of _Py_ID() and _Py_STR() in the source files.
John Belmonte [Mon, 14 Feb 2022 00:00:32 +0000 (09:00 +0900)]
Corrections to format precision description. (GH-31291)
* `precision` field is a decimal integer
* clarify that stated limitations are on presentation type
rather than input value type. Especially misleading is
"precision is not allowed for integer values", since integer
value input to a format like `.1f` is fine.
* regarding max field size, replace "non-number" with "string",
which is the only non-numeric presentation type
Alex Waygood [Sun, 13 Feb 2022 00:04:48 +0000 (00:04 +0000)]
bpo-45447: Add syntax highlighting for `.pyi` files in IDLE (GH-28950)
Also add .pyi to the python extensions in the "File-open" and "File-save" dialogues.
Add util.py to contain objects that are used in multiple idlelib modules
and have no dependencies on any of them.
Co-authored-by: E-Paine <63801254+E-Paine@users.noreply.github.com> Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
aha79 [Sat, 12 Feb 2022 15:35:57 +0000 (16:35 +0100)]
bpo-46333: include `module` in `ForwardRef.__repr__` (#31283)
The module parameter carries semantic information about the forward ref.
Show to the user that forward refs with same argument but different
module are different.
Co-authored-by: Andreas Hangauer <andreas.hangauer@siemens.com> Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Dennis Sweeney [Fri, 11 Feb 2022 16:25:08 +0000 (11:25 -0500)]
bpo-46615: Don't crash when set operations mutate the sets (GH-31120)
Ensure strong references are acquired whenever using `set_next()`. Added randomized test cases for `__eq__` methods that sometimes mutate sets when called.