PEP8 fixes

Author: Liam3851

pandas/core/series.py

@@ -2306,7 +2306,8 @@ def combine_first(self, other):
         name = ops.get_op_result_name(self, other)  # noqa
         rs_vals = com._where_compat(isna(this), other._values, this._values)
         result = self._constructor(rs_vals, index=new_index).__finalize__(self)
-        # TODO DK can we simplify this using internals rather than public astype
+        # TODO DK can we simplify this using internals rather than public
+        # astype
         if is_datetime64tz_dtype(self.dtype):
             result = result.astype(self.dtype)
         return result

pandas/tests/series/indexing/test_boolean.py

@@ -553,9 +553,9 @@ def test_where_datetime_conversion():
 
 def test_where_dt_tz_values(self):
     dts1 = pd.date_range('20150101', '20150105', tz='America/New_York')
-    df1 = pd.DataFrame({'date':dts1})
+    df1 = pd.DataFrame({'date': dts1})
     dts2 = pd.date_range('20150103', '20150107', tz='America/New_York')
-    df2 = pd.DataFrame({'date':dts2})
+    df2 = pd.DataFrame({'date': dts2})
     result = df1.date.where(df1.date < df1.date[3], df2.date)
     exp_vals = pd.DatetimeIndex(['20150101', '20150102', '20150103',
                                  '20150106', '20150107'],

pandas/tests/series/test_combine_concat.py

@@ -172,9 +172,9 @@ def get_result_type(dtype, dtype2):
 
     def test_combine_first_dt_tz_values(self):
         dts1 = pd.date_range('20150101', '20150105', tz='America/New_York')
-        df1 = pd.DataFrame({'date':dts1})
+        df1 = pd.DataFrame({'date': dts1})
         dts2 = pd.date_range('20160514', '20160518', tz='America/New_York')
-        df2 = pd.DataFrame({'date':dts2}, index=range(3, 8))
+        df2 = pd.DataFrame({'date': dts2}, index=range(3, 8))
         result = df1.date.combine_first(df2.date)
         exp_vals = pd.DatetimeIndex(['20150101', '20150102', '20150103',
                                      '20150104', '20150105', '20160516',