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83 lines
3.3 KiB
Python
83 lines
3.3 KiB
Python
import importlib
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import inspect
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import os
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from textwrap import dedent # remove indentation
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from types import ModuleType
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from letta.constants import CLI_WARNING_PREFIX
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from letta.functions.schema_generator import generate_schema
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def parse_source_code(func) -> str:
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"""Parse the source code of a function and remove indendation"""
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source_code = dedent(inspect.getsource(func))
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return source_code
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def load_function_set(module: ModuleType) -> dict:
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"""Load the functions and generate schema for them, given a module object"""
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function_dict = {}
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for attr_name in dir(module):
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# Get the attribute
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attr = getattr(module, attr_name)
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# Check if it's a callable function and not a built-in or special method
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if inspect.isfunction(attr) and attr.__module__ == module.__name__:
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if attr_name in function_dict:
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raise ValueError(f"Found a duplicate of function name '{attr_name}'")
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generated_schema = generate_schema(attr)
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function_dict[attr_name] = {
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"module": inspect.getsource(module),
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"python_function": attr,
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"json_schema": generated_schema,
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}
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if len(function_dict) == 0:
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raise ValueError(f"No functions found in module {module}")
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return function_dict
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def validate_function(module_name, module_full_path):
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try:
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file = os.path.basename(module_full_path)
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spec = importlib.util.spec_from_file_location(module_name, module_full_path)
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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except ModuleNotFoundError as e:
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# Handle missing module imports
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missing_package = str(e).split("'")[1] # Extract the name of the missing package
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print(f"{CLI_WARNING_PREFIX}skipped loading python file '{module_full_path}'!")
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return (
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False,
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f"'{file}' imports '{missing_package}', but '{missing_package}' is not installed locally - install python package '{missing_package}' to link functions from '{file}' to Letta.",
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)
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except SyntaxError as e:
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# Handle syntax errors in the module
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return False, f"{CLI_WARNING_PREFIX}skipped loading python file '{file}' due to a syntax error: {e}"
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except Exception as e:
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# Handle other general exceptions
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return False, f"{CLI_WARNING_PREFIX}skipped loading python file '{file}': {e}"
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return True, None
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def load_function_file(filepath: str) -> dict:
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file = os.path.basename(filepath)
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module_name = file[:-3] # Remove '.py' from filename
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try:
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spec = importlib.util.spec_from_file_location(module_name, filepath)
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module = importlib.util.module_from_spec(spec)
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spec.loader.exec_module(module)
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except ModuleNotFoundError as e:
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# Handle missing module imports
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missing_package = str(e).split("'")[1] # Extract the name of the missing package
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print(f"{CLI_WARNING_PREFIX}skipped loading python file '{filepath}'!")
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print(
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f"'{file}' imports '{missing_package}', but '{missing_package}' is not installed locally - install python package '{missing_package}' to link functions from '{file}' to Letta."
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)
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# load all functions in the module
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function_dict = load_function_set(module)
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return function_dict
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