pandas.isnull

pandas.isnull(obj)

Detect missing values (NaN in numeric arrays, None/NaN in object arrays)

Parameters:	arr : ndarray or object value Object to check for null-ness
Returns:	isnulled : array-like of bool or bool Array or bool indicating whether an object is null or if an array is given which of the element is null.

See also

pandas.notnull

boolean inverse of pandas.isnull