Do not apply eventlets monkey patch to the thread module.

opaque.py

@@ -1,5 +1,10 @@
 import eventlet
-eventlet.monkey_patch()
+eventlet.monkey_patch(os=True,
+                      select=True,
+                      socket=True,
+                      thread=False,
+                      time=True,
+                      psycopg=True)
 
 from dotenv import load_dotenv
 load_dotenv()