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
Python (programming language) problems involving string manipulation and search in a dictionary, and determined that memory consumption was often "better than Java and not much worse than C or C++". Large organizations that use Python include Wikipedia, Google, Yahoo!, CERN, NASA, Facebook, Amazon, Instagram, Spotify and some smaller entities like ILM and ITA. The social news networking site Reddit is written entirely in Python. Python can serve as a scripting language for web applications, e.g., via mod_wsgi for the Apache web server. With Web Server Gateway Interface, a standard API has evolved to facilitate these applications. Web frameworks like Django, Pylons, Pyramid, TurboGears,