Fix is_newtype() check (bloomberg#36)

Fixes: bloomberg#35 Signed-off-by: Siddhant Kumar <[email protected]>
keiclone · May 26, 2020 · f596171 · f596171
1 parent 3d7ab09
commit f596171
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/attrs_strict/_commons.py b/attrs_strict/_commons.py
@@ -1,8 +1,8 @@
 def is_newtype(type_):
     return (
         hasattr(type_, "__name__")
+        and hasattr(type_, "__supertype__")
         and type_.__module__ == "typing"
-        and type_.__name__ == "SomeNew"
     )