CLN: fix mypy warnings/errors

pandas/core/groupby/ops.py

@@ -790,7 +790,7 @@ def _get_axes(group):
         return group.axes
 
 
-def _is_indexed_like(obj, axes):
+def _is_indexed_like(obj, axes) -> bool:
     if isinstance(obj, Series):
         if len(axes) > 1:
             return False

pandas/core/indexes/frozen.py

@@ -7,7 +7,6 @@
 - .levels & .codes (FrozenNDArray)
 
 """
-
 import warnings
 
 import numpy as np
@@ -68,7 +67,7 @@ def difference(self, other):
         return type(self)(temp)
 
     # TODO: Consider deprecating these in favor of `union` (xref gh-15506)
-    __add__ = __iadd__ = union
+    __add__ = __iadd__ = union  # type: ignore
 
     def __getitem__(self, n):
         if isinstance(n, slice):
@@ -110,8 +109,8 @@ def __str__(self):
     def __repr__(self):
         return "%s(%s)" % (self.__class__.__name__, str(self))
 
-    __setitem__ = __setslice__ = __delitem__ = __delslice__ = _disabled
-    pop = append = extend = remove = sort = insert = _disabled
+    __setitem__ = __setslice__ = __delitem__ = __delslice__ = _disabled  # type: ignore
+    pop = append = extend = remove = sort = insert = _disabled  # type: ignore
 
 
 class FrozenNDArray(PandasObject, np.ndarray):

pandas/io/formats/css.py

@@ -11,6 +11,23 @@ class CSSWarning(UserWarning):
     pass
 
 
+def _side_expander(prop_fmt: str):
+    def expand(self, prop, value):
+        tokens = value.split()
+        try:
+            mapping = self.SIDE_SHORTHANDS[len(tokens)]
+        except KeyError:
+            warnings.warn(
+                'Could not expand "{prop}: {val}"'.format(prop=prop, val=value),
+                CSSWarning,
+            )
+            return
+        for key, idx in zip(self.SIDES, mapping):
+            yield prop_fmt.format(key), tokens[idx]
+
+    return expand
+
+
 class CSSResolver:
     """A callable for parsing and resolving CSS to atomic properties
 
@@ -213,22 +230,6 @@ def atomize(self, declarations):
     }
     SIDES = ("top", "right", "bottom", "left")
 
-    def _side_expander(prop_fmt):
-        def expand(self, prop, value):
-            tokens = value.split()
-            try:
-                mapping = self.SIDE_SHORTHANDS[len(tokens)]
-            except KeyError:
-                warnings.warn(
-                    'Could not expand "{prop}: {val}"'.format(prop=prop, val=value),
-                    CSSWarning,
-                )
-                return
-            for key, idx in zip(self.SIDES, mapping):
-                yield prop_fmt.format(key), tokens[idx]
-
-        return expand
-
     expand_border_color = _side_expander("border-{:s}-color")
     expand_border_style = _side_expander("border-{:s}-style")
     expand_border_width = _side_expander("border-{:s}-width")

pandas/tests/io/msgpack/test_extension.py

@@ -48,7 +48,7 @@ def default(obj):
             typecode = 123  # application specific typecode
             data = tobytes(obj)
             return ExtType(typecode, data)
-        raise TypeError("Unknown type object {obj!r}".format(obj))
+        raise TypeError("Unknown type object {obj!r}".format(obj=obj))
 
     def ext_hook(code, data):
         print("ext_hook called", code, data)