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# 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

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