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⚡️ Speed up function get_writer by 26% #377

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⚡️ Speed up function get_writer by 26% #377

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7 changes: 4 additions & 3 deletions pandas/io/excel/_util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -89,10 +89,11 @@ def get_default_engine(ext: str, mode: Literal["reader", "writer"] = "reader") -


def get_writer(engine_name: str) -> ExcelWriter_t:
try:
# Hot path optimization: Avoid try/except by checking before access
# This prevents the more expensive stack operations associated with exceptions
if engine_name in _writers:
return _writers[engine_name]
except KeyError as err:
raise ValueError(f"No Excel writer '{engine_name}'") from err
raise ValueError(f"No Excel writer '{engine_name}'")


def _excel2num(x: str) -> int:
Expand Down