Description

JelleZijlstra

opened on May 18, 2023

Issue body actions

Code:

def __b():
    [__a for __b in [__b] for _ in []]
    return locals()

On #104603, calling this gives:

>>> __b()
{'__b': <function __b at 0x100e3e390>}

But on 3.11:

>>> __b()
{}

So the locals() in the outer function can now include comprehension variables from the inner comprehension. cc @carljm

Linked PRs

• gh-104619: never leak comprehension locals to outer locals() #104637

Activity

1. JelleZijlstra

   added

   type-bugAn unexpected behavior, bug, or errorAn unexpected behavior, bug, or error

   on May 18, 2023
2. JelleZijlstra

   changed the title [-]PEP 709: [/-] [+]PEP 709: Comprehension iteration variable leaks into outer locals()[/+] on May 18, 2023
3. carljm

   self-assigned this

   on May 18, 2023
4. carljm

   added a commit that references this issue on May 19, 2023

   pythongh-104619: never leak comprehension locals to outer locals()

   58b7d96
5. carljm

   linked a pull request that will close this issuegh-104619: never leak comprehension locals to outer locals() #104637on May 19, 2023
6. JelleZijlstra

   closed this as completedin #104637on May 19, 2023
7. JelleZijlstra

   added a commit that references this issue on May 19, 2023

   gh-104619: never leak comprehension locals to outer locals() (#104637)

   70c7796
8. carljm

   added a commit that references this issue on May 20, 2023

   Merge branch 'main' into gsallam/main

   ea5965a

Issue actions