Update functional.py

Author: Luci2015

umapi_client/functional.py

@@ -110,7 +110,7 @@ def __init__(self, id_type=IdentityTypes.adobeID, email=None, username=None, dom
             Action.__init__(self, user=email, useAdobeID=True, **kwargs)
         elif username and '@' in username:
             Action.__init__(self, user=username, **kwargs)
-        elif username and '@' not in username::
+        elif username and '@' not in username:
             Action.__init__(self, user=username, domain=self.domain, **kwargs)
         else:
             Action.__init__(self, user=email, **kwargs)