Joe Jevnik added the comment: The issue appears to be in ceval.c:unicode_concatenate (or the py2 equivalent)
The code sets the local variable on the lhs to NULL before doing a potentially inplace append to the string. This means that if a signal is raised during the concat, we never hit the STORE_FAST instruction following the INPLACE_ADD so the local or cell still holds NULL, triggering an error. I am not really sure what can be done to prevent the failure while still allowing the optimization. ---------- components: +Interpreter Core nosy: +llllllllll type: crash -> _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue29096> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
