[issue27999] Make "global after use" a SyntaxError
Ivan Levkivskyi added the comment: Added few tests to the patch -- Added file: http://bugs.python.org/file44503/patch-v2.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27999> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27999] Make "global after use" a SyntaxError
Ivan Levkivskyi added the comment: I am attaching the patch. Yury, I also added you here, just in case you have time for this. Btw, while working on this I have found that the second restriction: """ Names listed in a global statement must not be ... in a for loop control target, class definition, function definition, or import statement. """ is not enforced at all, it does not give even a SyntaxWarning. Is it something worth fixing? -- keywords: +patch nosy: +yselivanov Added file: http://bugs.python.org/file44501/patch-v1.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27999> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue28038] Remove com2ann script (will be in separate repo)
Ivan Levkivskyi added the comment: After some thinking, maybe it could be still kept in Tools but developed on github as it is done for typing and asyncio? I have no preference here, core devs should decide. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28038> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue28038] Remove com2ann script (will be in separate repo)
Ivan Levkivskyi added the comment: Victor, Guido proposed to publish com2ann script in a separate repo on github. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28038> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue28038] Remove com2ann script (will be in separate repo)
New submission from Ivan Levkivskyi: Guido, Here is a patch to remove com2ann (also it looks like Yury added a second entry for me in MISC/Acks, so that I am removing it). -- components: Demos and Tools files: remove-com2ann.diff keywords: patch messages: 275274 nosy: gvanrossum, levkivskyi priority: normal severity: normal status: open title: Remove com2ann script (will be in separate repo) versions: Python 3.6 Added file: http://bugs.python.org/file44489/remove-com2ann.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue28038> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Thank you Guido, Yury, Brett, and Serhiy! It is first time I make such kind of contribution. It was a great experience and a great opportunity to better understand CPython internals (I already have several ideas on what to work next :-) I will soon submit a PR to python/typing with copy of typing changes (also Python2 version) and a patch to remove com2ann script to a separate repo as discussed with Guido. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26982] Clarify forward annotations in PEP 484
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26982> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Yes, This is the latest patch that I tested and with resolved merge conflicts. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Thank you Yury, I usually do ./python -m test -R : test___all__ test_dis test_grammar test_opcodes test_parser test_pydoc test_symtable test_tools test_typing and then ./python -m test -j3 -u all I just run tests with -R3:3 it also works. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Guido, I resolved merge conflicts in patch v4 (if it will complain, this could be because of graminit.c or importlib_external.h, just ignore those, they will be regenerated during build). Please take a look and sorry for a delay. -- Added file: http://bugs.python.org/file44478/hg-pep-526-v4.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Oh, I see there are more comments by Serhiy, I will implement them and submit a new patch. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Yury, thank you for the fix and for good advice! (I checked everything like 10 times, except for TOS :-) I run the full test suite and everything seem to be fine now. Guido, does Yury's patch apply cleanly, or I need to regenerate a new one? -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Yury, Commenting out was an attempt to debug. It should be there -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: It looks like this part is causing a refleak def test_do_not_recreate_annotations(self): class C: del __annotations__ try: #with self.assertRaises(NameError): x: int except NameError: pass in test_opcodes (for both options -- try and with) -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Sorry, again attached a wrong diff, here is the correct one. -- Added file: http://bugs.python.org/file44470/hg-pep-526-v2.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Here is the new patch. I hope I didn't miss any comment and fixed everything. There is still a refleak to fix. -- Added file: http://bugs.python.org/file44469/hg-pep-526-v2.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Guido, I fixed __annotations__ in interactive REPL, will fix other minor things and submit a new patch tomorrow morning. There are two important questions in typing.py: > Why is the second isinstance() needed? Isn't _ClassVar a subclass of > TypingMeta and > This being a metaclass, the name should end in Meta, like most > other subclasses of TypingMeta. (And they don't have a leading _, > though they're still not public.) The problem with ClassVar is that it is not actually a class, and _ClassVar is not a metaclass, it is just a class. I deviated from the common pattern in module for the following reason. ClassVar is going to be extensively used at class scope, where all annotations are evaluated. Therefore I wanted not to create new class objects by __getitem__ like it is going for other classes like Union etc (I tried to timeit this and ClassVar is almost ten times faster than Union) What do you think? Should I keep it like this, or rewrite in a common pattern for the module? -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: > I think this is how exec() already works This is not exactly like this, exec() emits ast.Module while interactive input emits ast.Interactive (this one skips compiler_body in compile.c), but I think I have got your point, will fix this. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: I could change STORE_ANNOTATION opcode so that it will recreate __annotations__ if __name__ == '__main__'. Or do you now think that it should re-create it always? I still think that always re-creating __annotations__ if they don't exist seems like silencing a possible error. As I mentioned in previous discussion, I think we should allow people to explicitly del __annotations__ (for example if someone wants to make a class with annotations that are "invisible" to runtime tools) and warn them if later they use annotations. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: We discussed this at some point on python/typing. At that time we decided that class C: del __annotations__ x: int Should be an error. Do you think that it should behave in a different way in interactive REPL and/or at module level? -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27989] incomplete signature with help function using typing
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27989> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27999] Make "global after use" a SyntaxError
Ivan Levkivskyi added the comment: OK, then I think after will be safer. Let us came back to this right after PEP 526. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27999> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27999] Make "global after use" a SyntaxError
Ivan Levkivskyi added the comment: Yes, nonlocal will be fixed too. This will be a relatively small patch, but I am a bit afraid there could be merge conflicts (the code affected could overlap with changes for PEP 526). Easiest way would be to simply make this a single patch with PEP 526 implementation (this will actually even slightly simplify the implementation). Alternatively we could fix this right after the implementation patch is applied. What do you prefer? -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27999> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27999] Make "global after use" a SyntaxError
New submission from Ivan Levkivskyi: The documentation at https://docs.python.org/3/reference/simple_stmts.html says that: "Names listed in a global statement must not be used in the same code block textually preceding that global statement" But then later: "CPython implementation detail: The current implementation does not enforce the two restrictions, but programs should not abuse this freedom, as future implementations may enforce them..." Code like this def f(): x = 1 global x gives SyntaxWarning for several releases, maybe it is time to make it a SyntaxError? -- assignee: docs@python components: Documentation, Interpreter Core messages: 274813 nosy: docs@python, gvanrossum, levkivskyi priority: normal severity: normal status: open title: Make "global after use" a SyntaxError type: behavior versions: Python 3.6 ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27999> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Oops, sorry, forgot to add new files when converting from git to hg, here is the full patch. -- Added file: http://bugs.python.org/file44416/hg-pep-526.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27985] Implement PEP 526
Ivan Levkivskyi added the comment: Here is the patch for PEP 526 implementation -- keywords: +patch nosy: +levkivskyi Added file: http://bugs.python.org/file44415/hg-pep-526.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27985> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27905] Add documentation for typing.Type
Ivan Levkivskyi added the comment: Michael, thank you for helping with this! Please take a look at my comments on the patch. -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27905> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27598] Add Collection to collections.abc and typing
Ivan Levkivskyi added the comment: Guido, thank you for committing! There are also some other omissions in docs, Type[C], @overload, there is #26141 to track this. I will submit a patch later. Until 3.6beta1 I would like to focus on PEP 526. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27598> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27598] Add SizedIterable to collections.abc and typing
Ivan Levkivskyi added the comment: Thank you Neil, I agree that Sequence is a reversible collection. I combined you documentation patch with updated _collections_abc and updated test_functools (it tests MRO) into a single patch. -- Added file: http://bugs.python.org/file44148/collection_neil_combined.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27598> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27598] Add SizedIterable to collections.abc and typing
Ivan Levkivskyi added the comment: I submit a simple solution in line with __subclasshook__ of other ABCs. I added several tests, it looks like it is doing everything right. Please review. -- keywords: +patch Added file: http://bugs.python.org/file44144/collection.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27598> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25958] Implicit ABCs have no means of "anti-registration"
Ivan Levkivskyi added the comment: On my machine 8 tests are always skipped: test_devpoll test_kqueue test_msilib test_ossaudiodev test_startfile test_winreg test_winsound test_zipfile64 All others tests pass OK. The main part of the work is by Andrew Barnert, I only introduced small changes due to previous changes in Reversible and few minor things in response to previous comments. Guido, thank you for applying the patch! -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25958> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27594] Assertion failure when running "test_ast" tests with coverage.
Ivan Levkivskyi added the comment: Ned, thank you for applying the patch! I have discovered this same issue accidentally while playing with possible implementations of PEP 526. It appeared as a failure in test_sys_settrace in my fork. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27594> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25958] Implicit ABCs have no means of "anti-registration"
Ivan Levkivskyi added the comment: Oops, sorry, forgot one import, all tests pass with the corrected patch. -- Added file: http://bugs.python.org/file44123/abarnert_rebased2.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25958> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25958] Implicit ABCs have no means of "anti-registration"
Ivan Levkivskyi added the comment: I have manually "rebased" the patch taking into account that part of the work has been done in http://bugs.python.org/issue25987 Serhiy, Martin could you please review the latest patch and check that everything is OK? Andrew did a really good job and I would like this to land in 3.6 -- Added file: http://bugs.python.org/file44122/abarnert_rebased.diff ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25958> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27723] Document typing.Text and typing.AnyStr
Ivan Levkivskyi added the comment: Looks good to me. 15 Сер 2016 18:57 "Michael Lee" <rep...@bugs.python.org> пише: > > Michael Lee added the comment: > > Second revision attached below. > > -- > Added file: http://bugs.python.org/file44121/document-text-and- > anystr-2.patch > > ___ > Python tracker <rep...@bugs.python.org> > <http://bugs.python.org/issue27723> > ___ > -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27723> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24379] Add operator.subscript as a convenience for creating slices
Ivan Levkivskyi added the comment: It looks like namedtuple suffers the same issue with empty __slots__: test_collections leaked [0, 0, 2, 0] references, sum=2 -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24379> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27723] Document typing.Text and typing.AnyStr
Ivan Levkivskyi added the comment:
Thank you for the patch, Michael!
I could add a comment that probably it is better to mention the definition of
AnyStr = TypeVar('AnyStr', str, bytes) at beginning and only then go with
examples.
--
nosy: +levkivskyi
___
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue27723>
___
___
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27594] Assertion failure when running "test_ast" tests with coverage.
Ivan Levkivskyi added the comment: You could try changing this line in compile.c (in function 'assemble') if (entryblock && entryblock->b_instr) to if (entryblock && entryblock->b_instr && entryblock->b_instr->i_lineno) Does this help? -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27594> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27689] Add documentation for typing.Generator
Ivan Levkivskyi added the comment: Michael, thank you for the patch. I have only one comment. Generator is one of the few types in typing.py that behaves contravariantly. Maybe you could emphasize that it is contravariant in send type in your patch? -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27689> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27688] Expand documentation about Any in the typing module
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27688> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27644] Expand documentation about type aliases and NewType in the typing module
Ivan Levkivskyi added the comment: I have only one optional comment on the second revision. -- nosy: +gvanrossum ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27644> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27644] Expand documentation about type aliases and NewType in the typing module
Ivan Levkivskyi added the comment: > Should I edit the patch to include a sentence or two describing this > distinction, just remove the word "almost", or do something else? I think the best way is to remove the "almost" and briefly explain that you cannot subclass types returned by NewType. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27644> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27644] Expand documentation about type aliases and NewType in the typing module
Ivan Levkivskyi added the comment: Added two small comments to the review. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27644> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27644] Expand documentation about type aliases and NewType in the typing module
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27644> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27598] Add SizedIterable to collections.abc and typing
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27598> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27588] Type (typing) objects are hashable and comparable for equality but this is not documented
Ivan Levkivskyi added the comment: I am not sure that this feature will survive the resolution of https://github.com/python/typing/issues/136 Types in typing are primarily intended for use with static type checkers and similar tools, their runtime properties are still under some discussions. -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27588> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25958] Implicit ABCs have no means of "anti-registration"
Ivan Levkivskyi added the comment: What holds back this issue now? It looks like Andrew did a great job. When I was making a patch for #25987 following Andrew's ideas, I was surprised how many different idioms has been used for __subclasshook__. I was going to open an issue on this, when I noticed a week ago that there is already this issue. Is any help needed here? -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25958> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue27501] Add typing.py class describing a PEP 3118 buffer object
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue27501> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24379] Add operator.subscript as a convenience for creating slices
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24379> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25830] _TypeAlias: Discrepancy between docstring and behavior
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25830> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26075] typing.Union unifies types too broadly
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26075> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26477] typing forward references and module attributes
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26477> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26696] Document collections.abc.ByteString
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26696> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue26141] typing module documentation incomplete
Ivan Levkivskyi added the comment: I would like to do this (update the typing docs) at some point before 3.6 beta1. There probably will be some updates to the PEP (it is still provisional), and maybe to typing.py soon. -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue26141> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25958] Implicit ABCs have no means of "anti-registration"
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25958> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25987] collections.abc.Reversible
Ivan Levkivskyi added the comment: I see that I forgot to include .. versionadded:: in the documentation. Will this go into 3.5.2 or in 3.6? -- assignee: -> docs@python components: +Documentation nosy: +docs@python ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25987> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25987] collections.abc.Reversible
Ivan Levkivskyi added the comment: I was not sure whether Andrew is still interested. I made a simple-minded patch following his proposal. I also added tests and changed docs accordingly. Note that I also changed the expected MRO for MutableSequence in one of the functools tests according to the new hierarchy (otherwise test_functools fails). Please review. PS: Some tests was skipped on my machine, here is the list: test_bz2 test_curses test_dbm_gnu test_dbm_ndbm test_devpoll test_idle test_kqueue test_lzma test_msilib test_ossaudiodev test_smtpnet test_socketserver test_ssl test_startfile test_tcl test_timeout test_tix test_tk test_ttk_guionly test_ttk_textonly test_urllib2net test_urllibnet test_winreg test_winsound test_xmlrpc_net test_zipfile64 -- keywords: +patch Added file: http://bugs.python.org/file42357/reversible.patch ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25987> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25987] collections.abc.Reversible
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25987> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue25610] Add typing.Awaitable
Changes by Ivan Levkivskyi <levkivs...@gmail.com>: -- nosy: +levkivskyi ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25610> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24272] PEP 484 docs
Ivan Levkivskyi added the comment: Thank you, Guido! I have noticed single quotes in line 38: type hinted using `Callable[[Arg1Type, Arg2Type], ReturnType]` I think it would be logical to replace it with double quotes: ``Callable[[Arg1Type, Arg2Type], ReturnType]`` as Zachary did in the rest of the text. By the way, you have marked my patch as Daniels and vice versa in the commit descriptions, but that probably does not matter :) -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24272> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24272] PEP 484 docs
Ivan Levkivskyi added the comment: Guido, are you going to commit our patches before 3.5.final? Is there a merge conflict now? Should I rebase my diff? If necessary I could make a clean patch combining two patches (my and Daniel's) on top of what Zachary did. -- ___ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue24272> ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24272] PEP 484 docs
Ivan Levkivskyi added the comment: Here is a new patch for the first part of classes at the end of docs. I also did some minor changes (in particular added more info on generics and removed the section about ellipsis for default arguments, we could return it if we decide to write something about stub files here). -- Added file: http://bugs.python.org/file40144/typedoc_new.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24272 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24796] Deleting names referencing from enclosed and enclosing scopes
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24796 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24272] PEP 484 docs
Ivan Levkivskyi added the comment: Is anyone working on this right now? If not, I could implement the comments by Guido to the latest patch by Daniel. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24272 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24272] PEP 484 docs
Ivan Levkivskyi added the comment: New version of the patch by Daniel, latest comments by Guido are taken into account. -- Added file: http://bugs.python.org/file40108/typing_doc_v3.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24272 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
Ivan Levkivskyi added the comment: I am sorry but I still don't get how things are organized here, so pinging this up. What is the next step? Should I wait for another review? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24528] Misleading exeption for await in comprehensions.
Ivan Levkivskyi added the comment: Yury, thank you for the patch, the error message is much clearer now. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24528 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
Ivan Levkivskyi added the comment: What holds the patch now? Should I do something or just wait? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue5945] PyMapping_Check returns 1 for lists
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue5945 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24528] Misleading exeption for await in comprehensions.
New submission from Ivan Levkivskyi: The following code: async def foo(): lst = [await coro(i) for i in range(10)] return lst gives SyntaxError: 'await' outside async function I understand that this is because the comprehensions are implemented using a function scope (see also #10544), but such behavior is unintuitive. IMO there are two possibilities here: 1) make comprehensions behave more like a for loop; 2) change the exception text to something like SyntaxError: 'await's in comprehensions are not supported. I understand that the first option is probably not for 3.5 (it is beta already), but I will be happy if the second option will be implemented in 3.5 -- components: Interpreter Core, asyncio messages: 245931 nosy: gvanrossum, haypo, levkivskyi, yselivanov priority: normal severity: normal status: open title: Misleading exeption for await in comprehensions. type: behavior versions: Python 3.5, Python 3.6 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24528 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19217] Calling assertEquals for moderately long list takes too long
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19217 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21253] unittest assertSequenceEqual can lead to Difflib.compare() crashing on mostly different sequences
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21253 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue21827] textwrap.dedent() fails when largest common whitespace is a substring of smallest leading whitespace
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue21827 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24272] PEP 484 docs
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24272 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue11352] Update cgi module doc
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue11352 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue16379] SQLite error code not exposed to python
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue16379 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue19235] Add a dedicated subclass for recursion errors
Changes by Ivan Levkivskyi levkivs...@gmail.com: -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue19235 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
Ivan Levkivskyi added the comment: It looks like on python-dev (http://www.mail-archive.com/python-dev@python.org/msg88256.html) there is an agreement that this behavior should not be changed (at least not in the nearest future). If there are no more comments/suggestions, then maybe one could accept the latest patch? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
Ivan Levkivskyi added the comment: Nick, thank you for a review, I have made a new patch with all the previous comments taken into account. -- Added file: http://bugs.python.org/file39759/classdoc-v4.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
levkivskyi added the comment: Eric, the rule that classes don't play the nested scopes game is explained at beginning of the same section, but the explanation is one sided it only explains that names defined in classes are not visible inside functions. Nick, thank you for the thorough explanation. I will try to improve the wording. It looks like a bit more substantial changes are needed. -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
Ivan Levkivskyi added the comment: Eric, I have submitted a new version of the patch. Could you please make a review? Nick, it will be interesting to hear your opinion too. I tried to follow such rules: 1. Explanation should be succinct yet clear 2. It should tell as less as possible about implementation details 3. Minimize necessary changes It turns out that these goals could be achieved by a) simply reshuffling and structuring the existing text to separate the exceptions (classes, etc.) from the general case; and b) adding some minor clarifications. Armin, thank you for the link. It looks like this is a really old discussion. PS: Unfortunately, the diff after reshuffling of the text looks big and cumbersome, in fact the changes are minimal. -- Added file: http://bugs.python.org/file39749/classdoc-v3.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
levkivskyi added the comment: Eric, thank you for the review. I have incorporated proposed changes in second version of the patch. Concerning the question whether it is a bug, it also smells like a bug to me, but Guido said 13 years ago that this should not be changed: https://mail.python.org/pipermail/python-dev/2002-April/023428.html and it stayed like this since then. However, things changed a bit in Python 3.4 with the introduction of the LOAD_CLASSDEREF opcode. Perhaps, we should ask Guido again :) What do you think? -- Added file: http://bugs.python.org/file39744/classdoc_v2.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
levkivskyi added the comment: Should I invite someone to review the patch or just wait? How the things are organized here? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
levkivskyi added the comment: Since no one proposed alternative ideas, I am submitting my proposal as a patch, with the following wording: A class definition is an executable statement that may use and define names. Free variables follow the normal rules for name resolution, while unbound local variables are looked up in the global namespace. The namespace of the class definition becomes the attribute dictionary of the class. Names defined at the class scope are not visible in methods -- keywords: +patch Added file: http://bugs.python.org/file39383/classdoc.patch ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24133] Add 'composable' decorator to functools (with @ matrix multiplication syntax)
New submission from levkivskyi: The matrix multiplication operator @ is going to be introduced in Python 3.5 and I am thinking about the following idea: The semantics of matrix multiplication is the composition of the corresponding linear transformations. A linear transformation is a particular example of a more general concept - functions. The latter are frequently composed with (wrap) each other. For example: plot(real(sqrt(data))) However, it is not very readable in case of many wrapping layers. Therefore, it could be useful to employ the matrix multiplication operator @ for indication of function composition. This could be done by such (simplified) decorator: class composable: def __init__(self, func): self.func = func def __call__(self, arg): return self.func(arg) def __matmul__(self, other): def composition(*args, **kwargs): return self.func(other(*args, **kwargs)) return composable(composition) I think using such decorator with functions that are going to be deeply wrapped could improve readability. You could compare (note that only the outermost function should be decorated): plot(sorted(sqrt(real(data_array vs. (plot @ sorted @ sqrt @ real) (data_array) I think the latter is more readable, also compare def sunique(lst): return sorted(list(set(lst))) vs. sunique = sorted @ list @ set Apart from readability, there are following pros of the proposed decorator: 1. Similar semantics as for matrix multiplication. 2. Same symbol for composition as for decorators. 3. The symbol @ resembles mathematical notation for function composition: ∘ I think it could be a good idea to add such a decorator to the stdlib functools module. -- components: Library (Lib) messages: 242653 nosy: levkivskyi priority: normal severity: normal status: open title: Add 'composable' decorator to functools (with @ matrix multiplication syntax) type: enhancement versions: Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24133 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24128] Documentation links are forwarded to Python 2
New submission from levkivskyi: Links to Python library documentation such as: http://docs.python.org/library/functions.html http://docs.python.org/library/itertools.html http://docs.python.org/library/functools.html etc. are automatically forwarded to the Python 2 versions, namely to: https://docs.python.org/2/library/functions.html https://docs.python.org/2/library/itertools.html https://docs.python.org/2/library/functools.html At the same time docs.python.org is forwarded to Python 3 version https://docs.python.org/3/ I believe that all the documentation links should be forwarded to the current version that is Python 3. -- assignee: docs@python components: Documentation, Library (Lib) messages: 242613 nosy: docs@python, levkivskyi priority: normal severity: normal status: open title: Documentation links are forwarded to Python 2 type: behavior versions: Python 2.7, Python 3.4, Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24128] Documentation links are forwarded to Python 2
levkivskyi added the comment: Is it possible to check whether the Python 3 version exists and redirect to it and if not (like for http://docs.python.org/library/fpformat.html) then redirect to Python 2 ? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24128 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue24129] Incorrect (misleading) statement in the execution model documentation
New submission from levkivskyi: The documentation on execution model https://docs.python.org/3/reference/executionmodel.html contains the statement A class definition is an executable statement that may use and define names. These references follow the normal rules for name resolution. The namespace of the class definition becomes the attribute dictionary of the class. Names defined at the class scope are not visible in methods. However, the following code (taken from http://lackingrhoticity.blogspot.ch/2008/08/4-python-variable-binding-oddities.html): x = xtop y = ytop def func(): x = xlocal y = ylocal class C: print(x) print(y) y = 1 func() prints xlocal ytop In case of normal rules for name resolution it should rise UnboundLocalError. I suggest replacing the mentioned statement with the following: A class definition is an executable statement that may use and define names. Free variables follow the normal rules for name resolution, bound variables are looked up in the global namespace. The namespace of the class definition becomes the attribute dictionary of the class. Names defined at the class scope are not visible in methods. or a similar one. -- assignee: docs@python components: Documentation messages: 242619 nosy: docs@python, levkivskyi priority: normal severity: normal status: open title: Incorrect (misleading) statement in the execution model documentation type: behavior versions: Python 3.4, Python 3.5 ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue24129 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
[issue10544] yield expression inside generator expression does nothing
levkivskyi added the comment: I would like to add that since the introduction of asyncio module that heavily uses yield from syntax, binding of yield inside comprehensions/generator expressions could lead to unexpected results/confusing behavior. See for example this question on SO: http://stackoverflow.com/questions/29334054/why-am-i-getting-different-results-when-using-a-list-comprehension-with-coroutin -- nosy: +levkivskyi ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue10544 ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
