New submission from Serhiy Storchaka <[email protected]>:
There are problems with converting annotations containing f-strings into
strings (from __future__ import annotations). For example f'''{"'"}''' is
converted to f'{"\'"}', but the latter is a syntax error.
>>> from __future__ import annotations
>>> x: f'''{"'"}'''
>>> print(__annotations__['x'])
f'{"\'"}'
>>> x: f'{"\'"}'
File "<stdin>", line 1
SyntaxError: f-string expression part cannot include a backslash
More complex examples:
f"""{"'''"}"""
f"""{"'" '"'}"""
f"""{"'''"}""" f'''{'"""'}'''
----------
components: Interpreter Core
messages: 316886
nosy: eric.smith, lukasz.langa, serhiy.storchaka
priority: normal
severity: normal
status: open
title: f-strings and string annotations
type: behavior
versions: Python 3.7, Python 3.8
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Python tracker <[email protected]>
<https://bugs.python.org/issue33552>
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