Crochet is an MIT-licensed library that makes it easier for blocking or
 threaded applications like Flask or Django to use the Twisted
 networking framework. Crochet provides the following features:
 .
  * Runs Twisted's reactor in a thread it manages.
  * The reactor shuts down automatically when the process' main thread
    finishes.
  * Hooks up Twisted's log system to the Python standard library logging
    framework. Unlike Twisted's built-in logging bridge, this includes
    support for blocking Handler instances.
  * A blocking API to eventual results (i.e. Deferred instances). This
    last feature can be used separately, so Crochet is also useful for
    normal Twisted applications that use threads.