New submission from Oren Milman: The following code causes an assertion failure:
import unicodedata def bad_normalize(*args): return None unicodedata.normalize = bad_normalize import ast ast.parse('\u03D5') This is because init_normalization() (in Python/ast.c) assumes that unicodedata.normalize() is valid, and stores it in the compiling struct. Later, new_identifier() calls the stored function, assumes it returned a string, and passes it to PyUnicode_InternInPlace(), which asserts it is a string. ---------- components: Interpreter Core messages: 303036 nosy: Oren Milman priority: normal severity: normal status: open title: assertion failure in Python/ast.c in case of a bad unicodedata.normalize() type: crash versions: Python 3.7 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue31592> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com