New submission from Martin Hosken <[email protected]>:
The following code fails:
>>> lcls = {'w': 100}
>>> eval('[w for x in ("hello", "world")]', None, lcls)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<string>", line 1, in <module>
File "<string>", line 1, in <listcomp>
NameError: name 'w' is not defined
>>> eval('[w, w, w]', None, lcls)
[100, 100, 100]
whereas in python2 it succeeds
>>> lcls = {'w': 100}
>>> eval('[w for x in ("hello", "world")]', None, lcls)
[100, 100]
----------
messages: 337980
nosy: Martin Hosken
priority: normal
severity: normal
status: open
title: eval of generator expressions cannot access local variables
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Python tracker <[email protected]>
<https://bugs.python.org/issue36300>
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