print('np.nan==np.nan :',np.nan==np.nan)
print('np.isnan(np.nan) :',np.isnan(np.nan))
print('None==None :',None==None)
np.nan==np.nan : False
np.isnan(np.nan) : True
None==None : True
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Rahul Dey
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Also, **`None` is irrelevant** `None` is not `nan`, and really, doesn't act like nan. – juanpa.arrivillaga Nov 28 '20 at 14:32
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2Use `np.isnan(value)` not == to check that - it is well documented. – Patrick Artner Nov 28 '20 at 14:41