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()

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()

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: .. code-block:: python

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