Very minor grammatical fix in a comment.
diff --git a/Python/import.c b/Python/import.c
index 390f9e3..a04654e 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -1029,7 +1029,7 @@
/* Return an importer object for a sys.path/pkg.__path__ item 'p',
possibly by fetching it from the path_importer_cache dict. If it
- wasn't yet cached, traverse path_hooks until it a hook is found
+ wasn't yet cached, traverse path_hooks until a hook is found
that can handle the path item. Return None if no hook could;
this tells our caller it should fall back to the builtin
import mechanism. Cache the result in path_importer_cache.