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Suppress warnings in interactive env that stem from tab completion (#11190)

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Suppress warnings in interactive environments that can arise from users 
relying on tab completion (without even using deprecated modules).

jupyter seems to filter warnings by default (at least for me), but
ipython surfaces them all
This commit is contained in:
Eugene Yurtsev 2023-09-29 11:44:30 -04:00 committed by GitHub
parent 715ffda28b
commit de69ea26e8
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1 changed files with 14 additions and 0 deletions
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14
libs/langchain/langchain/__init__.py
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@ -20,7 +20,21 @@ debug: bool = False
llm_cache: Optional["BaseCache"] = None
def _is_interactive_env() -> bool:
"""Determine if running within IPython or Jupyter."""
import sys
return hasattr(sys, "ps2")
def _warn_on_import(name: str) -> None:
"""Warn on import of deprecated module."""
if _is_interactive_env():
# No warnings for interactive environments.
# This is done to avoid polluting the output of interactive environments
# where users rely on auto-complete and may trigger this warning
# even if they are not using any deprecated modules
return
warnings.warn(
f"Importing {name} from langchain root module is no longer supported."
)