Merge pull request #1644 from croneter/py3-fix-multiprocessing

Android: Fix broken Python multiprocessing module (a Kodi 19.2 bug)

resources/lib/utils.py

@@ -23,6 +23,11 @@ import re
 import gc
 try:
     from multiprocessing.pool import ThreadPool
+    # Annyoing Kodi bug on Android, introduced with
+    #   https://github.com/xbmc/xbmc/pull/20034
+    # See https://github.com/croneter/PlexKodiConnect/issues/1641
+    with ThreadPool():
+        pass
     SUPPORTS_POOL = True
 except Exception:
     SUPPORTS_POOL = False
@@ -867,13 +872,12 @@ def process_method_on_list(method_to_run, items):
     all_items = []
     if SUPPORTS_POOL:
         pool = ThreadPool()
+        with ThreadPool() as pool:
             try:
                 all_items = pool.map(method_to_run, items)
             except Exception:
                 # catch exception to prevent threadpool running forever
                 ERROR(notify=True)
-        pool.close()
-        pool.join()
     else:
         all_items = [method_to_run(item) for item in items]
     all_items = [_f for _f in all_items if _f]