Issue #21789: fix broken link (reported by Jan Varho)
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index 16d311c..3e4af53 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -534,7 +534,7 @@
"Non-ASCII character '\\x%.2x' "
"in file %.200s on line %i, "
"but no encoding declared; "
- "see http://www.python.org/peps/pep-0263.html for details",
+ "see http://python.org/dev/peps/pep-0263/ for details",
badchar, tok->filename, tok->lineno + 1);
PyErr_SetString(PyExc_SyntaxError, buf);
return error_ret(tok);