switch to use multiprocess to avoid awkward initialization errors (#151)

* switch to use multiprocess to avoid awkward initialization errors

* update documentation requirements

Author: alexgolec

docs/requirements.txt

@@ -3,6 +3,7 @@
 authlib==1.3.0
 Flask==3.0.3
 httpx==0.27.0
+multiprocess==0.70.16
 prompt_toolkit==3.0.43
 psutil==5.9.8
 python-dateutil==2.9.0.post0

schwab/auth.py

@@ -5,7 +5,7 @@
 import httpx
 import json
 import logging
-import multiprocessing
+import multiprocess
 import os
 import psutil
 import queue
@@ -303,9 +303,9 @@ def client_from_login_flow(api_key, app_secret, callback_url, token_path,
     callback_port = parsed.port if parsed.port else 443
     callback_path = parsed.path if parsed.path else '/'
 
-    output_queue = multiprocessing.Queue()
+    output_queue = multiprocess.Queue()
 
-    server = multiprocessing.Process(
+    server = multiprocess.Process(
             target=__run_client_from_login_flow_server,
             args=(output_queue, callback_port, callback_path))
 

setup.py

@@ -34,6 +34,7 @@
         'authlib',
         'flask',
         'httpx',
+        'multiprocess',
         'prompt_toolkit',
         'psutil',
         'python-dateutil',