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inspect module does not implement introspection API for asynchronous generators #79940

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inspect module does not implement introspection API for asynchronous generators#79940
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3.12only security fixesstdlibStandard Library Python modules in the Lib/ directorytopic-asynciotype-featureA feature request or enhancement

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@tkren
tkren
mannequin
opened on Jan 17, 2019
BPO 35759
Nosy @ncoghlan, @1st1, @tirkarthi, @tkren
PRs
  • gh-79940: add introspection API for asynchronous generators #11590
  • gh-79940: add introspection API for asynchronous generators #11590
    		•
    Files
  • 0001-inspect-add-introspection-API-for-asynchronous-gener.patch: Initial patch for getasyncgenstate and getasyncgenlocals
    		•

    Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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    GitHub fields:

    assignee = None
closed_at = None
created_at = <Date 2019-01-17.12:34:49.495>
labels = ['3.8', 'type-feature', 'library']
title = 'inspect module does not implement introspection API for asynchronous generators'
updated_at = <Date 2019-01-17.14:15:35.489>
user = 'https://github.com/tkren'

    bugs.python.org fields:

    activity = <Date 2019-01-17.14:15:35.489>
actor = 'xtreak'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Library (Lib)']
creation = <Date 2019-01-17.12:34:49.495>
creator = 'tkren'
dependencies = []
files = ['48066']
hgrepos = []
issue_num = 35759
keywords = ['patch']
message_count = 2.0
messages = ['333861', '333870']
nosy_count = 4.0
nosy_names = ['ncoghlan', 'yselivanov', 'xtreak', 'tkren']
pr_nums = ['11590', '11590']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue35759'
versions = ['Python 3.8']

    Linked PRs

    Activity

    1. tkren commented on Jan 17, 2019

      @tkren
      tkrenmannequin
      on Jan 17, 2019
      MannequinAuthor

      The inspect module does not contain functions for determining the current state of asynchronous generators. That is, there is no introspection API for asynchronous generators that match the API for generators and coroutines: https://docs.python.org/3.8/library/inspect.html#current-state-of-generators-and-coroutines.

      I propose to add inspect.getasyncgenstate and inspect.getasyncgenlocals (following inspect.isasyncgenfunction and inspect.isasyncgen).

      % ./python
Python 3.8.0a0 (heads/fix-issue-getasyncgenstate:a24deae1e2, Jan 17 2019, 11:44:45) 
[GCC 6.3.0 20170516] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import inspect
>>> async def agen():
...     x = 1
...     yield x
...     x += 1
...     yield x
... 
>>> ag = agen()
>>> inspect.getasyncgenstate(ag)
'AGEN_CREATED'
>>> inspect.getasyncgenlocals(ag)
{}
>>> ag.__anext__().__next__()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
StopIteration: 1
>>> inspect.getasyncgenstate(ag)
'AGEN_SUSPENDED'
>>> inspect.getasyncgenlocals(ag)
{'x': 1}
>>> ag.__anext__().__next__()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
StopIteration: 2
>>> inspect.getasyncgenstate(ag)
'AGEN_SUSPENDED'
>>> inspect.getasyncgenlocals(ag)
{'x': 2}
>>> ag.aclose().send(None)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
StopIteration
>>> inspect.getasyncgenstate(ag)
'AGEN_CLOSED'
>>> inspect.getasyncgenlocals(ag)
{}
    2. tkren
      added
      3.8 (EOL)end of life
      stdlibStandard Library Python modules in the Lib/ directory
      type-featureA feature request or enhancement
      on Jan 17, 2019

    3. tirkarthi commented on Jan 17, 2019

      @tirkarthi
      tirkarthi
      on Jan 17, 2019
      Member

      see also msg300475

    4. ezio-melotti
      transferred this issue fromon Apr 10, 2022
    5. kumaraditya303
      added
      3.12only security fixes
      and removed
      3.8 (EOL)end of life
      on Mar 5, 2023
    6. kumaraditya303
      self-assigned this
      on Mar 5, 2023
    7. kumaraditya303
      added
      topic-asyncio
      on Mar 5, 2023
    8. kumaraditya303
      removed their assignment
      on Mar 5, 2023
    9. ezio-melotti
      added this to asyncioon Mar 5, 2023
    10. github-project-automation
      moved this to Todo in asyncioon Mar 5, 2023

    11. kumaraditya303 commented on Mar 5, 2023

      @kumaraditya303
      kumaraditya303
      on Mar 5, 2023
      Contributor

      I needed this today and was surprised that it wasn't implemented. I'll review the PR.

    12. kumaraditya303
      added a commit that references this issue on Mar 11, 2023

      gh-79940: add introspection API for asynchronous generators to `inspe…

      ced13c9
    13. kumaraditya303
      closed this as completedon Mar 11, 2023
    14. github-project-automation
      moved this from Todo to Done in asyncioon Mar 11, 2023
    15. miss-islington
      added a commit that references this issue on Mar 11, 2023

      gh-79940: skip `TestGetAsyncGenState` on wasm as it requires working …

      534660f
    16. iritkatriel
      added 2 commits that reference this issue on Mar 12, 2023

      pythongh-79940: add introspection API for asynchronous generators to …

      f9250e4

      pythongh-79940: skip `TestGetAsyncGenState` on wasm as it requires wo…

      45cc601
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      3.12only security fixesstdlibStandard Library Python modules in the Lib/ directorytopic-asynciotype-featureA feature request or enhancement

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