[issue24956] Default value for an argument that is not in the choices list gets accepted

[Sworddragon]

New submission from Sworddragon:

Normally if a value to an argument is passed that is not in the choices list an error like "test.py: error: argument --test: invalid choice: 'c' (choose from 'a', 'b')" is shown. But if the default is set to an invalid choice no error is shown.

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components: Library (Lib)
messages: 249318
nosy: Sworddragon
priority: normal
severity: normal
status: open
title: Default value for an argument that is not in the choices list gets accepted
type: behavior
versions: Python 3.4

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue24956>
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