Add assertion to fix mypy error (aio-libs#3927)

(MatchObject.lastindex may be None)
AMDmi3 · Aug 13, 2019 · 7e38008 · 7e38008
1 parent 6e9bc7f
commit 7e38008
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/aiohttp/cookiejar.py b/aiohttp/cookiejar.py
@@ -302,6 +302,7 @@ def _parse_date(cls, date_str: str) -> Optional[datetime.datetime]:
                 month_match = cls.DATE_MONTH_RE.match(token)
                 if month_match:
                     found_month = True
+                    assert(month_match.lastindex is not None)
                     month = month_match.lastindex
                     continue