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Handle no plugins found #4969

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Merged
chriselion merged 1 commit into from
Feb 19, 2021
Merged

Handle no plugins found #4969

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8 changes: 8 additions & 0 deletions ml-agents/mlagents/plugins/stats_writer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,14 @@ def register_stats_writer_plugins(run_options: RunOptions) -> List[StatsWriter]:
and evaluates them, and returns the list of all the StatsWriter implementations.
"""
all_stats_writers: List[StatsWriter] = []
if ML_AGENTS_STATS_WRITER not in importlib_metadata.entry_points():
logger.warning(
f"Unable to find any entry points for {ML_AGENTS_STATS_WRITER}, even the default ones. "
"Uninstalling and reinstalling ml-agents via pip should resolve. "
"Using default plugins for now."
)
return get_default_stats_writers(run_options)

entry_points = importlib_metadata.entry_points()[ML_AGENTS_STATS_WRITER]

for entry_point in entry_points:
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