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    Upvotes37edited Sep 23, 2012 at 16:27

    Your none values are actually strings in your dictionary.

    You can check for 'None' or use actual python None value.

    d = {'a':None,'b':'12345','c':None}

    for k,v in d.items():
    if d[k] is None:
    print "good"
    else:
    print "Bad"

    prints "good" 2 times

    Or if you Have to use your current dictionary just change your check to look for 'None'

    additionally dict is a python built in type so it is a good idea not to name variables dict

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  3. Stack Overflow
    https://stackoverflow.com/questions/12553938

    if statement - None value in python dictionary - Stack …

    Your none values are actually strings in your dictionary. You can check for 'None' or use actual python None value. d = {'a':None,'b':'12345','c':None} for k,v in d.items(): if d[k] is None: print "good".

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    Should a dict have a loop if it contains false values?@Jon For the most part, in a duck-typed language, it should not have to, unless explicitly needed which is not clear in this case. if dict contains Falses, this will break. You could have Python do the looping in C code by using a dictionary view; this does a membership test against all values without creating a new list:

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