[issue29104] Left bracket remains in format string result when '\' preceeds it

[Serhiy Storchaka]

Serhiy Storchaka added the comment:

Updated patch adds a warning.

----------
Added file: http://bugs.python.org/file46127/fstring_backslash_2.patch

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue29104>
_______________________________________