See the following output.  The reason for the confusing
message is that random.randint is actually a bound
method to a Random instance inside the module, i.e.
someone got a little bit too clever.  It should be an
ordinary function that calls that instance method instead.

>>> import random
>>> random.randint(10000)
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
TypeError: randint() takes exactly 3 arguments (2 given)