STINNER Victor added the comment: The overflowed flag was introduced 8 years ago (near the release of Python 3.0) by the following changeset:
changeset: 42013:cd125fe83051 user: Martin v. Löwis <mar...@v.loewis.de> date: Sun Jun 10 09:51:05 2007 +0000 files: Include/ceval.h Include/pystate.h Include/stringobject.h Include/unicodeobject.h Lib/test/test_frozen.py Lib/test/test_new.py Lib/test/test description: Make identifiers str (not str8) objects throughout. This affects the parser, various object implementations, and all places that put identifiers into C string literals. In testing, a number of crashes occurred as code would fail when the recursion limit was reached (such as the Unicode interning dictionary having key/value pairs where key is not value). To solve these, I added an overflowed flag, which allows for 50 more recursions after the limit was reached and the exception was raised, and a recursion_critical flag, which indicates that recursion absolutely must be allowed, i.e. that a certain call must not cause a stack overflow exception. There are still some places where both str and str8 are accepted as identifiers; these should eventually be removed. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue25274> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
