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.