raise TypeError when "-" is used between DateTimeArray

Author: KevsterAmp

pandas/core/arrays/datetimelike.py

@@ -18,6 +18,7 @@
 import warnings
 
 import numpy as np
+import pandas
 
 from pandas._config import using_string_dtype
 from pandas._config.config import get_option
@@ -1488,7 +1489,11 @@ def __rsub__(self, other):
             return (-self) + other
 
         # We get here with e.g. datetime objects
-        return -(self - other)
+        datetime_result = self - other
+        if isinstance(datetime_result, pandas.core.arrays.datetimes.DatetimeArray):
+            raise TypeError("TypeError: unsupported operand type(s) for -: "
+                            f"'{type(self).__name__}' and '{type(other).__name__}'")
+        return -(datetime_result)
 
     def __iadd__(self, other) -> Self:
         result = self + other