Update typing to satiate mypy

arkouda/series.py

@@ -91,7 +91,7 @@ class Series:
     """
 
     @typechecked
-    def __init__(self, data: Optional[Union[Tuple, List, groupable_element_type]] = None,
+    def __init__(self, data: Union[Tuple, List, groupable_element_type],
                  index: Optional[pdarray] = None, **kwargs):
 
         if "ar_tuple" in kwargs:
@@ -104,20 +104,18 @@ def __init__(self, data: Optional[Union[Tuple, List, groupable_element_type]] =
                  'Use keyword arguments instead (eg. ak.Series(data=values, index=indices)',
                  DeprecationWarning)
 
-        elif isinstance(data, (Tuple, List)) and len(data) == 2:
+        elif isinstance(data, (tuple, list)) and len(data) == 2:
             if not isinstance(data[0], (pdarray, Iterable, Strings)):
                 raise TypeError("indices must be a pdarray, iterable, or string")
             if not isinstance(data[1], (pdarray, Strings, Categorical)):
                 raise TypeError("values must be a pdarray, string, or categorical")
-            i = array(data[0]) if isinstance(data[0], (Tuple, List)) else data[0]
+            i = array(data[0]) if isinstance(data[0], (tuple, list)) else data[0]
             self.values = data[1]
             self.index = Index.factory(i)
 
         # When only 1 positional argument it will be treated as data and not index
         else:
-            if not isinstance(data, (pdarray, Strings, Categorical)):
-                self.values = array(data)
-            self.values = data
+            self.values = array(data) if not isinstance(data, Categorical) else data
             self.index = Index.factory(index) if index is not None else Index(arange(self.values.size))
 
         # TODO: Allow index to be an Index when index.py is updated