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[python] improve warning message about aliases in cv() function #4766

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Nov 5, 2021
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[python] improve warning message about aliases in cv() function #4766

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2 changes: 1 addition & 1 deletion python-package/lightgbm/engine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -570,7 +570,7 @@ def cv(params, train_set, num_boost_round=100,
params['objective'] = 'none'
for alias in _ConfigAliases.get("num_iterations"):
if alias in params:
_log_warning(f"Found `{alias}` in params. Will use it instead of argument")
_log_warning(f"Found '{alias}' in params. Will use it instead of 'num_boost_round' argument")
num_boost_round = params.pop(alias)
params["num_iterations"] = num_boost_round
if early_stopping_rounds is not None and early_stopping_rounds > 0:
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