I have a confusion when I do some practice, the code and output are as following,
>>> def fun(): print 'In fun()....' >>> testfun = fun() In fun().... >>> print testfun None >>> testfun2 = fun >>> print testfun2 <function fun at 0x00CC1270> >>> print testfun2() In fun().... None >>> what is 'testfun'? Why it is 'None'? And print testfun2(), what is the meaning of 'None'? Thanks!
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