[issue39841] "as" variable in except block deletes local variables with same name

[Eric V. Smith]

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

Yes, this is a known issue.

See https://docs.python.org/3/reference/compound_stmts.html#the-try-statement, in particular the sentence "When an exception has been assigned using as target, it is cleared at the end of the except clause" and the following text.

Basically, at the end of the exception block python does a "del err" in order to prevent a long-lived reference cycle including the exception.

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nosy: +eric.smith
resolution:  -> not a bug
stage:  -> resolved
status: open -> closed
type:  -> behavior

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39841>
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