[issue45930] Lambda function bug

[Eric V. Smith]

Change by Eric V. Smith :


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resolution:  -> not a bug
stage:  -> resolved
status: open -> closed
type:  -> behavior

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[issue45930] Lambda function bug

[Karthikeyan Singaravelan]

Karthikeyan Singaravelan  added the comment:

This is known behaviour due to binding. Please see  
https://docs.python.org/3/faq/programming.html#why-do-lambdas-defined-in-a-loop-with-different-values-all-return-the-same-result

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nosy: +xtreak

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[issue45930] Lambda function bug

[Valery Lovchikov]

New submission from Valery Lovchikov :

Python 3.9.7 (default, Sep 10 2021, 14:59:43) 
[GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> f=[lambda x: y**x for y in [2,3]]
>>> f[0](2)
9
>>> f[1](2)
9
=
I expected 4 as a result of f[0](2), but got 9

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messages: 407293
nosy: lvch
priority: normal
severity: normal
status: open
title: Lambda function bug
versions: Python 3.9

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