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🐛 fix(base.py): handle import errors when importing utilities to prevent application crashes

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The code now handles import errors when importing utilities from the `langchain.utilities` module. If an import error occurs, the utility is skipped and not added to the `type_dict` dictionary. This prevents the application from crashing when encountering an invalid or missing utility.
This commit is contained in:
Gabriel Luiz Freitas Almeida 2023-10-25 15:57:48 -03:00
commit f6ab266294
1 changed files with 8 additions and 4 deletions
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12
src/backend/langflow/interface/utilities/base.py
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@ -28,10 +28,14 @@ class UtilityCreator(LangChainTypeCreator):
""" """
if self.type_dict is None: if self.type_dict is None:
settings_service = get_settings_service() settings_service = get_settings_service()
self.type_dict = { self.type_dict = {}
utility_name: import_class(f"langchain.utilities.{utility_name}") for utility_name in utilities.__all__:
for utility_name in utilities.__all__ try:
} imported = import_class(f"langchain.utilities.{utility_name}")
self.type_dict[utility_name] = imported
except Exception:
pass
self.type_dict["SQLDatabase"] = utilities.SQLDatabase self.type_dict["SQLDatabase"] = utilities.SQLDatabase
# Filter according to settings.utilities # Filter according to settings.utilities
self.type_dict = { self.type_dict = {