Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity

bpo-46820: Fix a SyntaxError in a numeric literal followed by "not in" (GH-31479) 

Fix parsing a numeric literal immediately (without spaces) followed by
"not in" keywords, like in "1not in x". Now the parser only emits
a warning, not a syntax error.
This commit is contained in:
Serhiy Storchaka 2022-02-22 09:51:51 +02:00 committed by GitHub
parent 74127b89a8
commit 090e5c4b94
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Lib/test/test_grammar.py
View File

@ -251,6 +251,15 @@ class TokenTests(unittest.TestCase):
check("1e3in x")
check("1jin x")
check("0xfnot in x")
check("0o7not in x")
check("0b1not in x")
check("9not in x")
check("0not in x")
check("1.not in x")
check("1e3not in x")
check("1jnot in x")
with warnings.catch_warnings():
warnings.simplefilter('ignore', SyntaxWarning)
check("0xfis x")

3
Misc/NEWS.d/next/Core and Builtins/2022-02-21-21-55-23.bpo-46820.4RfUZh.rst Normal file
View File

@ -0,0 +1,3 @@
Fix parsing a numeric literal immediately (without spaces) followed by "not
in" keywords, like in ``1not in x``. Now the parser only emits a warning,
not a syntax error.

3
Parser/tokenizer.c
View File

@ -1253,6 +1253,9 @@ verify_end_of_number(struct tok_state *tok, int c, const char *kind)
else if (c == 'o') {
r = lookahead(tok, "r");
}
else if (c == 'n') {
r = lookahead(tok, "ot");
}
if (r) {
tok_backup(tok, c);
if (parser_warn(tok, "invalid %s literal", kind)) {