Question

How to check if a value is infinity or NaN in Python

Answer 1

import math

x = float('inf')
y = float('nan')

print(math.isinf(x))  
print(math.isnan(y))  



'''
run:

True
True

'''

 

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Answer 2

import math

def is_inf_or_nan(value):
    return math.isinf(value) or math.isnan(value)

x = float('inf') 
y = float('nan') 

print(is_inf_or_nan(x))
print(is_inf_or_nan(y))



'''
run:

True
True

'''

 

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