New submission from WIl Hall :
When creating lambda functions in a loop, variables involved in the lambda
statements appear to not resolve until the loop finishes. This results in all
of the defined lambda functions using the same variable to resolve to the last
value of that variable.
For example, in my test program attached, I loop through a list of words:
["one", "two", "three", "four"] and create a function for each word, I.e:
lambda: print_word(word). This results in every function having the word "four"
as their argument. This doesn't seem like intended behavior.
Im my example program attached, I demonstrate both the intended and not
intended behavior - creating the lambda functions in another function, versus
creating them in a loop.
--
components: Interpreter Core
files: lambda_tests.py
messages: 150107
nosy: wilhall
priority: normal
severity: normal
status: open
title: Creating lambda functions in a loop has unexpected results when
resolving variables used as arguments
type: behavior
versions: Python 2.6, Python 2.7
Added file: http://bugs.python.org/file24078/lambda_tests.py
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