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Pandas · Method

df.isna

DataFrame.isna() returns a Boolean mask showing which elements are missing. True means the element is NA; False means it is not.

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DataFrame.isna()

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  • DataFrame.isnull
  • DataFrame.notna
  • DataFrame.dropna
  • isna

Source: pandas.DataFrame.isna — pandas 3.1.0 documentation. Checked 2026-11-03.