In [18]: class a:
def __init__(self):
self.a = 2
def pr(self):
return self.a
....:
....:
In [23]:
In [24]: a
Out[24]: <class __main__.a at 0x88982cc>
In [25]: instance = a()
In [26]: print getattr(locals()['a'], 'pr')(locals()['instance'])
-------> print(getattr(locals()['a'], 'pr')(locals()['instance']))
2
In [27]: