tbkka 421ebd2788 [Python3] Fix "undefined symbol 'unicode'" from python_lint (#33146) ...

* [Python3] Fix "undefined symbol 'unicode'" from python_lint

This is a little tricky.

Python 2 "unicode" was renamed to "str" in Python 3.

For Python 2 compatibility, we need to use "unicode" in a couple
of places, but that's not defined on Python 3, which causes
python_lint errors (even if the reference is never actually executed).

To workaround this, when running in Python 3, define "unicode"
as a synonym for "str".  This defines the symbol (avoiding the
"undefined symbol" error from python lint) while preserving
the correct functionality on both Python 2 and Python 3.

When we drop Python 2 support (which we should do as soon as
possible), we can drop this workaround and globally replace
"unicode" with "str" to get the right Python 3-only functionality.

2020-07-28 11:47:25 -07:00

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