PNDSPY1006¶

Message pandas.core.series.Series.apply has a partial mapping because Snowpark pandas does not support a non-callable function as parameter.

Category Warning

Description¶

This issue appears when the SMA identifies a pandas.core.series.Series.apply usage. Snowpark pandas offers a partial equivalent, but it doesn’t support non-callable values as a parameter.

Scenario¶

An unsupported use of pandas.core.series.Series.apply.

Input¶

The following example shows an unsupported use of pandas.core.series.Series.apply.

import pandas as pd

ser = pd.Series([20, 21, 12], index=['London', 'New York', 'Helsinki'])
print(ser.apply(5))

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Output¶

The SMA adds the EWI PNDSPY1006 to the output code to indicate that it has a scenario not supported in Snowpark pandas.

from snowflake.snowpark.modin import plugin
import modin.pandas as pd

ser = pd.Series([20, 21, 12], index=['London', 'New York', 'Helsinki'])
#EWI: PNDSPY1006 => pandas.core.series.Series.apply has a partial mapping, because Snowpark pandas does not support callable functions as parameter.
print(ser.apply(5))

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Recommended fix¶

Ensure that the function used within the apply method is callable.

import pandas as pd

def my_function(x):
    return x * 5

ser = pd.Series([20, 21, 12], index=['London', 'New York', 'Helsinki'])
print(ser.apply(my_function))

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