CLN: NDFrame._where, comment typos (#37922)

Author: jbrockmendel

pandas/core/generic.py

@@ -9020,7 +9020,6 @@ def _where(
         cond = -cond if inplace else cond
 
         # try to align with other
-        try_quick = True
         if isinstance(other, NDFrame):
 
             # align with me
@@ -9059,12 +9058,11 @@ def _where(
                     # match True cond to other
                     elif len(cond[icond]) == len(other):
 
-                        # try to not change dtype at first (if try_quick)
-                        if try_quick:
-                            new_other = np.asarray(self)
-                            new_other = new_other.copy()
-                            new_other[icond] = other
-                            other = new_other
+                        # try to not change dtype at first
+                        new_other = np.asarray(self)
+                        new_other = new_other.copy()
+                        new_other[icond] = other
+                        other = new_other
 
                     else:
                         raise ValueError(

pandas/core/internals/blocks.py

@@ -1423,6 +1423,7 @@ def where(
             if values.ndim - 1 == other.ndim and axis == 1:
                 other = other.reshape(tuple(other.shape + (1,)))
             elif transpose and values.ndim == self.ndim - 1:
+                # TODO(EA2D): not neceesssary with 2D EAs
                 cond = cond.T
 
         if not hasattr(cond, "shape"):
@@ -2399,9 +2400,8 @@ def _can_hold_element(self, element: Any) -> bool:
         return is_valid_nat_for_dtype(element, self.dtype)
 
     def fillna(self, value, **kwargs):
-
-        # allow filling with integers to be
-        # interpreted as nanoseconds
+        # TODO(EA2D): if we operated on array_values, TDA.fillna would handle
+        #  raising here.
         if is_integer(value):
             # Deprecation GH#24694, GH#19233
             raise TypeError(

pandas/core/series.py

@@ -1015,7 +1015,7 @@ def __setitem__(self, key, value):
                 # positional setter
                 values[key] = value
             else:
-                # GH#12862 adding an new key to the Series
+                # GH#12862 adding a new key to the Series
                 self.loc[key] = value
 
         except TypeError as err:

pandas/tests/series/test_arithmetic.py

@@ -757,7 +757,7 @@ def test_align_date_objects_with_datetimeindex(self):
 @pytest.mark.parametrize("box", [list, tuple, np.array, pd.Index, pd.Series, pd.array])
 @pytest.mark.parametrize("flex", [True, False])
 def test_series_ops_name_retention(flex, box, names, all_binary_operators):
-    # GH#33930 consistent name renteiton
+    # GH#33930 consistent name retention
     op = all_binary_operators
 
     if op is ops.rfloordiv and box in [list, tuple]: