pandas.core.common.isnull

pandas.core.common.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.