Python random numbers

I can't understand the probl开发者_如何转开发em in python. I have such code:

class Rain:
    def __init__(self):
       self.x = random.randint(0, Core.Utils.ScreenResolutionX)
       print type(Core.Utils.ScreenResolutionX) # prints int
       print Core.Utils.ScreenResolutionX # print 1152

Error:

    self.x = random.randint(0, Core.Utils.ScreenResolutionX)
  File "/usr/lib/python2.7/random.py", line 241, in randint
    return self.randrange(a, b+1)
  File "/usr/lib/python2.7/random.py", line 213, in randrange
    if width >= maxwidth:
AttributeError: 'Rain' object has no attribute 'getType'

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NULL is being returned to Python in one of your methods erroneously. Always make sure to incref and return PyNone to Python if no exception needs to be raised.