[issue18844] allow weights in random.choice

[Antoine Pitrou]

Antoine Pitrou added the comment:

> Suggestion: if you want to go that way, return a single number if `amount` is not provided (so make the default value for `amount` None rather than 1). If `amount=1` is explicitly given, a list containing one item should be returned.

+1

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18844>
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