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[Bug] Fix a MLflow vis backend bug when the config key is not str #1579

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[Bug] Fix a MLflow vis backend bug when the config key is not str #1579

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[Bug] Fix a MLflow vis backend bug when the config key is not `str`
zgjja Sep 27, 2024
7156dd6
Merge branch 'open-mmlab:main' into main
zgjja Jun 16, 2025
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4 changes: 2 additions & 2 deletions mmengine/visualization/vis_backend.py
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Original file line number Diff line number Diff line change
Expand Up @@ -836,11 +836,11 @@ def close(self) -> None:

self._mlflow.end_run()

def _flatten(self, d, parent_key='', sep='.') -> dict:
def _flatten(self, d: Config, parent_key='', sep='.') -> dict:
"""Flatten the dict."""
items = dict()
for k, v in d.items():
new_key = parent_key + sep + k if parent_key else k
new_key = sep.join([parent_key, str(k)]) if parent_key else str(k)
if isinstance(v, MutableMapping):
items.update(self._flatten(v, new_key, sep=sep))
elif isinstance(v, list):
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