validate NaN python code example

Example 1: pandas nan values in column

df['your column name'].isnull()

Example 2: check if something is nan python

import math
print math.isnan(float('NaN'))OutputTrue
print math.isnan(1.0)OutputFalse

Example 3: how to check if a string value is nan in python

if(term != term):
	print("it's a nan value")