[issue39556] Different objects of the same class references the same dictionary

[Ammar Askar]

Ammar Askar <ammar at ammaraskar.com> added the comment:

This is a common mistake, you'll find the FAQ entry for it here: https://docs.python.org/3/faq/programming.html#why-are-default-values-shared-between-objects

It's not necessarily a "feature" but default values in functions are only created once, when the function is defined. Subsequent calls will refer to that same initially created object.

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nosy: +ammar2
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39556>
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