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if statement - None value in python dictionary - Stack Overflow
Define your dictionary with. d = {'a': None} rather than. d = {'a': 'None'} In the latter case, 'None' is just a string, not Python's None type. Also, test for None with the identity operator is: for key, value in d.iteritems(): if value is None: print "None found!"Code sample
d = {'a':None,'b':'12345','c':None}for k,v in d.items():if d[k] is None:print "good"else:...Explore further
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