> For the complete documentation index, see [llms.txt](https://docs.pentaho.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.pentaho.com/pdia-data-integration/10.2-data-integration/pdi-transformation-steps-reference-overview/python-executor/options-python-executor/output-tab/frames-to-fields-processing.md).

# Frames to fields processing

Select the **Frames to fields** option if your script produces Python list of dictionaries or a pandas DataFrame as the output. You can then map the data frame fields and types to PDI fields and types when running the transformation.

![Output tab in Python Executor](/files/h73CSMKb706ZiCkWn4aH)

These are the fields in the **Mapping** table. Select the **Get fields** button to populate the table with fields from the output step(s) in your transformation. If necessary, you can modify your selections.

| Option                   | Description                                                                                                                                                                                                                                                                                                                                                                                  |
| ------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Data structure field** | The value of the Python data structure field which you want to map to the PDI field.                                                                                                                                                                                                                                                                                                         |
| **Data structure type**  | The value of the data structure type assigned to the data structure field which you want to map to the PDI field. For detailed information on data types, see [Mapping data types from Python to PDI](/pdia-data-integration/10.2-data-integration/pdi-transformation-steps-reference-overview/python-executor/options-python-executor/output-tab/mapping-data-types-from-python-to-pdi.md). |
| **PDI field**            | The value of the PDI field to which you want to map the data structure field.                                                                                                                                                                                                                                                                                                                |
| **PDI data type**        | The value of the data type assigned to the PDI field, such as a date, a number, or a timestamp.                                                                                                                                                                                                                                                                                              |


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