[issue43738] Clarify public name of curses.window
New submission from Ryan McCampbell : Until 3.8 the curses window class was not directly available in code, but now it is available as `_curses.window`. This is not explicitly stated in the documentation (although it is consistent with how the method signatures are written). It is useful to have a public name for the type to aid IDE's with explicit type annotations, i.e. @curses.wrapper def main(stdscr: curses.window): stdscr.addstr(...) See https://github.com/python/typeshed/pull/5180, which adds this name to type hints in the typeshed project. This name should be more clearly documented so programmers can annotate the type without worrying that it may change (which will cause a runtime error unless it is quoted). -- assignee: docs@python components: Documentation messages: 390266 nosy: docs@python, rmccampbell7 priority: normal severity: normal status: open title: Clarify public name of curses.window type: enhancement versions: Python 3.10, Python 3.9 ___ Python tracker <https://bugs.python.org/issue43738> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue34305] inspect.getsourcefile and inspect.getcomments do not work with decorated functions
Ryan McCampbell added the comment: This seems like a pretty straightforward fix. What's holding it up? -- nosy: +rmccampbell7 ___ Python tracker <https://bugs.python.org/issue34305> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue39587] Mixin repr overrides Enum repr in some cases
New submission from Ryan McCampbell : In Python 3.6 the following works: class HexInt(int): def __repr__(self): return hex(self) class MyEnum(HexInt, enum.Enum): A = 1 B = 2 C = 3 >>> MyEnum.A However in Python 3.7/8 it instead prints >>> MyEnum.A 0x1 It uses HexInt's repr instead of Enum's. Looking at the enum.py module it seems that this occurs for mixin classes that don't define __new__ due to a change in the _get_mixins_ method. If I define a __new__ method on the HexInt class then the expected behavior occurs. -- components: Library (Lib) messages: 361635 nosy: rmccampbell7 priority: normal severity: normal status: open title: Mixin repr overrides Enum repr in some cases type: behavior versions: Python 3.7, Python 3.8 ___ Python tracker <https://bugs.python.org/issue39587> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue39252] email.contentmanager.raw_data_manager bytes handler breaks on 7bit cte
New submission from Ryan McCampbell : The email.contentmanager.set_bytes_content function which handles bytes content for raw_data_manager fails when passed cte="7bit" with an AttributeError: 'bytes' object has no attribute 'encode'. This is probably not a major use case since bytes are generally not for 7-bit data but the failure is clearly not intentional. -- components: Library (Lib) messages: 359555 nosy: rmccampbell7 priority: normal severity: normal status: open title: email.contentmanager.raw_data_manager bytes handler breaks on 7bit cte type: behavior versions: Python 3.8 ___ Python tracker <https://bugs.python.org/issue39252> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue37536] ctypes.create_string_buffer fails on windows with non-BMP characters
Ryan McCampbell added the comment: Oops my bad, didn't realize this was already fixed -- ___ Python tracker <https://bugs.python.org/issue37536> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue37536] ctypes.create_string_buffer fails on windows with non-BMP characters
Change by Ryan McCampbell : -- versions: +Python 3.6 ___ Python tracker <https://bugs.python.org/issue37536> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue37536] ctypes.create_string_buffer fails on windows with non-BMP characters
Change by Ryan McCampbell : -- components: +ctypes type: -> behavior ___ Python tracker <https://bugs.python.org/issue37536> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue37536] ctypes.create_string_buffer fails on windows with non-BMP characters
New submission from Ryan McCampbell :
The ctypes.create_string_buffer function uses the length of the string to
create the buffer if no size is provided. Since windows wide chars are UTF-16
the buffer may actually need to be larger to store surrogate pairs. This code
crashes on windows:
>>> create_unicode_buffer('\U0001\U0001')
ValueError: string too long
--
messages: 347600
nosy: rmccampbell7
priority: normal
severity: normal
status: open
title: ctypes.create_string_buffer fails on windows with non-BMP characters
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[issue35474] mimetypes.guess_all_extensions potentially mutates list
New submission from Ryan McCampbell : The mimetypes.guess_all_extensions function is defined as: def guess_all_extensions(self, type, strict=True): type = type.lower() extensions = self.types_map_inv[True].get(type, []) if not strict: for ext in self.types_map_inv[False].get(type, []): if ext not in extensions: extensions.append(ext) return extensions If any mime type exists in both the strict and non-strict types_map_inv and it is called with strict=False, then it will modify the strict list in-place which effects future calls even with strict=True. While this doesn't manifest as an error for me because the dictionaries are non-overlapping, it is a potential error; it is also vulnerable to people accidentally modifying the returned list. The list should be copied after the first lookup. -- components: Library (Lib) messages: 331715 nosy: rmccampbell7 priority: normal severity: normal status: open title: mimetypes.guess_all_extensions potentially mutates list type: behavior ___ Python tracker <https://bugs.python.org/issue35474> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue31405] shutil.which doesn't find files without PATHEXT extension on Windows
Ryan McCampbell added the comment: This is how windows looks up commands, as well as the built in "where" command. (Note that windows doesn't actually distinguish between "executable" files and just plain old files, so this could be confusing for UNIX users... a text file for instance will simply open in the default text editor when "executed" by the shell.) -- ___ Python tracker <https://bugs.python.org/issue31405> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue31405] shutil.which doesn't find files without PATHEXT extension on Windows
New submission from Ryan McCampbell: On windows, shutil.which does not match the semantics of built-in command lookup. If you pass the name of a script like foo.py and the PATHEXT variable doesn't include .py it will search for foo.py.exe, foo.py.bat, foo.py.cmd, etc. but not foo.py, which should be the first name checked. -- components: Library (Lib) messages: 301785 nosy: rmccampbell7 priority: normal severity: normal status: open title: shutil.which doesn't find files without PATHEXT extension on Windows type: behavior versions: Python 3.6 ___ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue31405> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22487] ABC register doesn't check abstract methods
New submission from Ryan McCampbell: Is there a reason register() doesn't check for abstract methods, like subclassing does? Would it fail for some builtin classes? It seems that this would be a better guarantee that, say, something really is iterable when you check isinstance(Collections.Iterable, o), since someone could have called Collections.Iterable.register(o.__class__) without adding an __iter__ method to their class. -- messages: 227489 nosy: rmccampbell7 priority: normal severity: normal status: open title: ABC register doesn't check abstract methods type: enhancement ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22487 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue22487] ABC register doesn't check abstract methods
Ryan McCampbell added the comment: Obviously, I meant isinstance(o, Collections.Iterable). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue22487 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21684] inspect.signature bind doesn't include defaults or empty tuple/dicts
Ryan McCampbell added the comment: It's not really a particular use case. I was making a function decorator for automatic type checking using annotations (ironically I discovered later there is an almost identical example in the PEP for signatures). But I can't think of any use case when it would be undesirable to include the extra parameters, unless it slows down the code, hence the possibility of a separate method. It would not complicate the API to add behavior that would simplify most applications. And I just realized this is also the behavior of inspect.getcallargs, for which the docs recommend to switch to Signature.bind. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21684 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21684] inspect.signature bind doesn't include defaults or empty tuple/dicts
Ryan McCampbell added the comment: Copying defaults still doesn't give you var positional/keyword arguments, which means, you have to explicitly check the parameter type, and then add them in. I still think it would more useful to have an official way of getting all function parameters from arguments. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21684 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21684] inspect.signature bind doesn't include defaults or empty tuple/dicts
Ryan McCampbell added the comment: If this is decided against, a partial solution would be to set the default attribute of VAR_POSITIONAL and VAR_KEYWORD args to an empty tuple/dict, respectively. Then you could get a parameter's value no matter what with boundargs.get(param.name, param.default). -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21684 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21684] inspect.signature bind doesn't include defaults or empty tuple/dicts
New submission from Ryan McCampbell: I'm not sure if this is really a bug, but it is unexpected behavior. When you call bind on a Python 3.3 signature object, if you omit an optional argument, the default is not provided in the arguments dict. Similarly, if there is a var positional or var keyword parameter but there are no extra arguments, it will not be included. To emulate the effect on the namespace of an actual function, I would expect these to be included, as an empty tuple/dict in the case of variable arguments. I realize the current behavior may be useful in some cases, but if so, then another method could be added: bind_full, which would include all parameters of the signature. -- messages: 219916 nosy: rmccampbell7 priority: normal severity: normal status: open title: inspect.signature bind doesn't include defaults or empty tuple/dicts type: behavior versions: Python 3.3, Python 3.4 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21684 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
