Stackless Python PyPy, a self-hosting Python interpreter and JIT compiler. Although the whole Stackless is a separate distribution, its switching functionality has been successfully packaged as a CPython extension called greenlet. It is used by a number of libraries (e.g. gevent) to provide a "green threading" solution for CPython. Python since has received a native solution for green threads: await/async. Stackless is used extensively in the implementation of the "Eve Online" massively multiplayer online game as well as in IronPort's mail platform. Stackless Python Stackless Python, or Stackless, is a Python programming language interpreter, so named because it avoids depending on the
Google App Engine to be language independent. Arbitrary Docker containers are also supported. Python web frameworks that run on Google App Engine include Django, CherryPy, Pyramid, Flask, web2py and webapp2, as well as a custom Google-written webapp framework and several others designed specifically for the platform that emerged since the release. Any Python framework that supports the WSGI using the CGI adapter can be used to create an application; the framework can be uploaded with the developed application. Third-party libraries written in pure Python may also be uploaded. Google App Engine supports many Java standards and frameworks. Core to this is the servlet