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⚡️ Speed up method EnvironmentReader.envvar_prefix by 8% #72

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⚡️ Speed up method EnvironmentReader.envvar_prefix by 8% #72

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10 changes: 7 additions & 3 deletions graphrag/config/environment_reader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -53,9 +53,13 @@ def _read_env(

def envvar_prefix(self, prefix: KeyValue):
"""Set the environment variable prefix."""
prefix = read_key(prefix)
prefix = f"{prefix}_".upper()
return self._env.prefixed(prefix)
# Inline read_key logic to avoid function call overhead in hot path
if type(prefix) is str:
effective_prefix = prefix.lower()
else:
effective_prefix = prefix.value.lower()
effective_prefix = f"{effective_prefix}_".upper()
return self._env.prefixed(effective_prefix)

def use(self, value: Any | None):
"""Create a context manager to push the value into the config_stack."""
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