Error on python function: local variable 'path' referenced before assignment

import json
from appwrite.client import Client
from appwrite.services.databases import Databases
from appwrite.services.users import Users
from appwrite.id import ID
from appwrite.services.teams import Teams


def main(req, res):
    # Environment variables
    payload = json.loads(req.variables.get('APPWRITE_FUNCTION_EVENT_DATA'))
    endpoint = req.variables.get("APPWRITE_ENDPOINT")
    project_id = req.variables.get("APPWRITE_PROJECT_ID")
    api_key = req.variables.get("APPWRITE_API_KEY")
    database_id = req.variables.get('DATABASE_ID')
    users_collection_id = req.variables.get('USERS_COLLECTION_ID')
    customers_team_id = req.variables.get("CUSTOMERS_TEAM_ID")

    #Client Databases Users and Teams initialization
    ...

    try:
        database.get_document(database_id, users_collection_id, payload['userId'])
    except Exception:
        try:
            print(payload['userId'])
            userId = payload['userId']
            user_data = user.get(user_id=userId)
            print(user_data)
            
            team.create_membership(
                team_id=customers_team_id,
                roles=[],
                email=user_data['email'],
                user_id=payload['userId'],
                url='https://test.justitis.it',
                name=user_data['name'],
            )
            
            database.create_document(
                database_id=database_id,
                collection_id=users_collection_id,
                document_id=payload['userId'],
                data={
                    'userId':payload['userId'],
                    'name':user_data['name'],
                    'email':user_data['email'],
                }
            )
        except Exception as e:
            print(str(e))