[issue43021] Unpacking tuple argument in combination with inline if statement

[Steven D'Aprano]

Steven D'Aprano <steve+python at pearwood.info> added the comment:

This is a operation precedence issue.

The line:

    t0, t1 = t if t is not None else [], []

is parsed as:

    (t if t is not None else []), []


so you need brackets around the "else" operand to get the effect you want.

    t0, t1 = t if t is not None else ([], [])

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nosy: +steven.daprano
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43021>
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