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))

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))

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))