DataFrame.empty

DataFrame.empty

True if NDFrame is entirely empty [no items], meaning any of the axes are of length 0.

If NDFrame contains only NaNs, it is still not considered empty. See the example below.

An example of an actual empty DataFrame. Notice the index is empty:

>>> df_empty = pd.DataFrame({'A' : []})
>>> df_empty
Empty DataFrame
Columns: [A]
Index: []
>>> df_empty.empty
True

If we only have NaNs in our DataFrame, it is not considered empty! We will need to drop the NaNs to make the DataFrame empty:

>>> df = pd.DataFrame({'A' : [np.nan]})
>>> df
    A
0 NaN
>>> df.empty
False
>>> df.dropna().empty
True

Links:

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2025-01-10 15:47:30

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