pandas.Series.hasnans

propertySeries.hasnans[source]

Return True if there are any NaNs.

Enables various performance speedups.

Returns:

Examples

>>> s = pd.Series([1, 2, 3, None])
>>> s
0    1.0
1    2.0
2    3.0
3    NaN
dtype: float64
>>> s.hasnans
True

© 2008–2011, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team
© 2011–2025, Open source contributors
Licensed under the 3-clause BSD License.
https://pandas.pydata.org/pandas-docs/version/2.3.0/reference/api/pandas.Series.hasnans.html