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Werkzeug for asyncio

Project Description


Library to make werkzeug working with asyncio.


Version 0.2.0

  • Use Python 3.5 async syntax.
  • New ~keep_context_factory. It works like ~context_coroutine, but simple code.
  • Async version of Local, LocalStack and LocalManager. They implement __release_local__ method.


  • Async versions of Local, LocalStack and LocalManager.

  • Locals work on asyncio Tasks. werkzeug.local.Local or werkzeug.local.LocalStack must be patched with aiowerkzeug.local.patch_local

    Patched werkzeug.local.Local or werkzeug.local.LocalStack use current asyncio.tasks.Task to determine context.

  • Decorator factory to mark coroutines to run in a context. Useful for Flask. It allows to run corountines in new asyncio.tasks.Task inside a specific context.

    For example, in Flask to run coroutines in Application context it is possible to create a decorator like that:

    def _get_app_context():
        return current_app.app_context()
    app_coroutine = partial(context_coroutine, ctx=_get_app_context)
    def foo_bar():
    def caller():
  • Asyncio HTTP server runner with reload

    $ python aiowerkzeug/ --reload


  • Form parser
  • Debug middleware
  • Static files middleware
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