>>> hell = str(123)

Traceback (most recent call last):
  File "<pyshell#419>", line 1, in <module>
    hell = str(123)
TypeError: 'str' object is not callable
>>> help(str)
no Python documentation found for '4bf3e914'

>>> hell = str(456)

Traceback (most recent call last):
  File "<pyshell#421>", line 1, in <module>
    hell = str(456)
TypeError: 'str' object is not callable
>>>