[issue43206] Optional parameter got passed even when not in the call

[Eric V. Smith]

Eric V. Smith <eric at trueblade.com> added the comment:

It's hard to tell because you didn't show the whole program, but this looks like a mutable default argument problem. Basically you're changing the default value in a different call to Row().

https://docs.python.org/3/faq/programming.html#why-are-default-values-shared-between-objects

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nosy: +eric.smith

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43206>
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