Le 13/02/2019 à 14:21, ast a écrit :
Hello

 >>> float('Nan') == float('Nan')
False

Why ?

Regards


Thank you for answers.

If you wonder how I was trapped with it, here
is the failing program.


r = float('Nan')

while r==float('Nan'):
    inp = input("Enter a number\n")
    try:
        r = float(inp)
    except ValueError:
        r = float('Nan')
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