perf(types): avoid double iteration in transform_dict_value_to_str - #3988
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ArulJerald wants to merge 1 commit into
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Combine the None-validation and str-conversion loops over dict.items() into a single pass, and rename the `dict` parameter to `d` to stop shadowing the builtin. Fixes apache#3987
ebyhr
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Sep 17, 2026
ebyhr
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I think this is more of a cosmetic code quality fix than a meaningful perf win, but still worth having.
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Summary
transform_dict_value_to_striterated overdict.items()twice: once tovalidate no value is
None, once more in a dict comprehension to convertvalues to strings. Combined into a single pass.
dicttodso it no longer shadows thebuiltin type.
Closes #3987
Test plan
uv run pytest tests/test_types.py -k transform_dict_value_to_strruff check pyiceberg/types.py