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import os
import ast
import sys
from typing import List, Tuple, Optional
def find_litellm_type_hints(directory: str) -> List[Tuple[str, int, str]]:
"""
Recursively search for Python files in the given directory
and find type hints containing 'litellm.'.
Args:
directory (str): The root directory to search for Python files
Returns:
List of tuples containing (file_path, line_number, type_hint)
"""
litellm_type_hints = []
def is_litellm_type_hint(node):
"""
Recursively check if a type annotation contains 'litellm.'
Handles more complex type hints like:
- Optional[litellm.Type]
- Union[litellm.Type1, litellm.Type2]
- Nested type hints
"""
try:
# Convert node to string representation
type_str = ast.unparse(node)
# Direct check for litellm in type string
if "litellm." in type_str:
return True
# Handle more complex type hints
if isinstance(node, ast.Subscript):
# Check Union or Optional types
if isinstance(node.value, ast.Name) and node.value.id in [
"Union",
"Optional",
]:
# Check each element in the Union/Optional type
if isinstance(node.slice, ast.Tuple):
return any(is_litellm_type_hint(elt) for elt in node.slice.elts)
else:
return is_litellm_type_hint(node.slice)
# Recursive check for subscripted types
return is_litellm_type_hint(node.value) or is_litellm_type_hint(
node.slice
)
# Recursive check for attribute types
if isinstance(node, ast.Attribute):
return "litellm." in ast.unparse(node)
# Recursive check for name types
if isinstance(node, ast.Name):
return "litellm" in node.id
return False
except Exception:
# Fallback to string checking if parsing fails
try:
return "litellm." in ast.unparse(node)
except:
return False
def scan_file(file_path: str):
"""
Scan a single Python file for LiteLLM type hints
"""
try:
# Use utf-8-sig to handle files with BOM, ignore errors
with open(file_path, "r", encoding="utf-8-sig", errors="ignore") as file:
tree = ast.parse(file.read())
for node in ast.walk(tree):
# Check type annotations in variable annotations
if isinstance(node, ast.AnnAssign) and node.annotation:
if is_litellm_type_hint(node.annotation):
litellm_type_hints.append(
(file_path, node.lineno, ast.unparse(node.annotation))
)
# Check type hints in function arguments
elif isinstance(node, ast.FunctionDef):
for arg in node.args.args:
if arg.annotation and is_litellm_type_hint(arg.annotation):
litellm_type_hints.append(
(file_path, arg.lineno, ast.unparse(arg.annotation))
)
# Check return type annotation
if node.returns and is_litellm_type_hint(node.returns):
litellm_type_hints.append(
(file_path, node.lineno, ast.unparse(node.returns))
)
except SyntaxError as e:
print(f"Syntax error in {file_path}: {e}", file=sys.stderr)
except Exception as e:
print(f"Error processing {file_path}: {e}", file=sys.stderr)
# Recursively walk through directory
for root, dirs, files in os.walk(directory):
# Remove virtual environment and cache directories from search
dirs[:] = [
d
for d in dirs
if not any(
venv in d
for venv in [
"venv",
"env",
"myenv",
".venv",
"__pycache__",
".pytest_cache",
]
)
]
for file in files:
if file.endswith(".py"):
full_path = os.path.join(root, file)
# Skip files in virtual environment or cache directories
if not any(
venv in full_path
for venv in [
"venv",
"env",
"myenv",
".venv",
"__pycache__",
".pytest_cache",
]
):
scan_file(full_path)
return litellm_type_hints
def main():
# Get directory from command line argument or use current directory
directory = "./litellm/"
# Find LiteLLM type hints
results = find_litellm_type_hints(directory)
# Print results
if results:
print("LiteLLM Type Hints Found:")
for file_path, line_num, type_hint in results:
print(f"{file_path}:{line_num} - {type_hint}")
else:
print("No LiteLLM type hints found.")
if __name__ == "__main__":
main()
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