Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment: Note that the DeprecationWarning exception is replaced with a SyntaxError to get a more accurate error report.
$ cat yield-gen.py def f(): return ((yield x) for x in range(3)) $ ./python -Wd yield-gen.py yield-gen.py:2: DeprecationWarning: 'yield' inside generator expression return ((yield x) for x in range(3)) $ ./python -We yield-gen.py File "yield-gen.py", line 2 return ((yield x) for x in range(3)) ^ SyntaxError: 'yield' inside generator expression Without this replacement the result would be: $ ./python -We yield-gen.py DeprecationWarning: 'yield' inside generator expression ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue10544> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com