PNDSPY1179¶

Message Pandas < pandas.core.series.Series.dropna > has a partial mapping with a few scenarios not supported in Snowpark.

Category Warning

Description¶

This issue appears when the SMA detects the use of a pandas element that has a direct equivalent in Snowpark pandas, but some scenarios might behave differently than pandas.

Scenario¶

A method with a few scenarios that aren’t supported in Snowpark.

Input¶

The following example shows a method with a few unsupported scenarios in Snowpark.

import pandas as pd

s = pd.Series([1, 2, 3, 4, 5])
result = s.dropna()

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Output¶

The SMA adds the EWI PNDSPY1179 to the output code to let you know that this element has a few scenarios that aren’t supported in Snowpark.

import snowflake.snowpark.modin.pandas as pd

#EWI: PNDSPY1179 => pandas.core.series.Series.dropna has a partial mapping, with few scenarios not supported. Check Snowpark pandas documentation for more detail.
s = pd.Series([1, 2, 3, 4, 5])
result = s.dropna()

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Recommended fix¶

This element has partial support in Snowpark pandas. General recommendations:

Test with sample data: Verify the operation works as expected with a subset of your data
Check parameters: Review which parameters are supported in the Snowpark pandas documentation

Fallback option: If exact pandas behavior is required:

# Convert to native pandas for full compatibility
result = df.to_pandas().dropna(...)

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Consider SQL alternative: For complex operations, Snowflake SQL may offer better performance

Additional recommendations¶

Check the Snowpark pandas documentation to verify which scenarios aren’t supported for that specific element.