Wrong error type returned by pow function

[djmgit]

Expected Behavior

Pow function should return ValueError when there are 3 arguments and the second argument is negative.

Current Behavior

Batavia is returning TypeError for the above mentioned case. This is also causing the tests in tests/builts/test_pow to fail.

Steps to reproduce

1. Execite the following code snippet using Batavia

   print(pow(1, -1, 1)

   Batavia returns TypeError:

   Traceback (most recent call last):
   File "/home/deep/batavia/test3.py", line 1, in <module>
   TypeError: pow() 2nd argument cannot be negative when 3rd argument specified

   however python returns ValueError

   Traceback (most recent call last):
   File "../test3.py", line 1, in <module>
   print(pow(2, -4, 1))
   ValueError: pow() 2nd argument cannot be negative when 3rd argument specified

   Your Environment

• Python Version (list the specific version number) 3.5.2

• Operating System and Version (select from the following and list the specific version number; if your OS is not listed, list that as well)

  • [ ] OSX
  • [ ] Linux
  • [ ] Windows
  • [ ] Ubuntu

[djmgit]

I am working on this.

[martica]

This was fixed by #784.