A screamingly fast, ultra-lightweight WSGI server for CPython 2 and CPython 3, written in C using Marc Lehmann's high performance libev event loop and Ryan Dahl's http-parser.
bjoern is the fastest, smallest and most lightweight WSGI server out there, featuring
- ~ 1000 lines of C code
- Memory footprint ~ 600KB
- Python 2 and Python 3 support (thanks @yanghao!)
- Single-threaded and without coroutines or other crap
- Can bind to TCP host:port addresses and Unix sockets (thanks @k3d3!)
- Full persistent connection ("keep-alive") support in both HTTP/1.0 and 1.1, including support for HTTP/1.1 chunked responses
pip install bjoern. See wiki for details.
from flask import Flask app = Flask(__name__) @app.route("/") def hello_world(): return "Hello, World!" if __name__ == "__main__": import bjoern bjoern.run(app, "127.0.0.1", 8000)# Bind to TCP host/port pair: bjoern.run(wsgi_application, host, port) # TCP host/port pair, enabling SO_REUSEPORT if available. bjoern.run(wsgi_application, host, port, reuse_port=True) # Bind to Unix socket: bjoern.run(wsgi_application, 'unix:/path/to/socket') # Bind to abstract Unix socket: (Linux only) bjoern.run(wsgi_application, 'unix:@socket_name') # Enable statsd metrics. See instrumentation.md for details. bjoern.run(wsgi_application, host, port, statsd=...)Alternatively, the mainloop can be run separately:
bjoern.listen(wsgi_application, host, port) bjoern.run() # With metrics. See instrumentation.md for details. bjoern.listen(wsgi_application, host, port) bjoern.run(statsd=...)You can also simply pass a Python socket(-like) object. Note that you are responsible for initializing and cleaning up the socket in that case.
bjoern.server_run(socket_object, wsgi_application) bjoern.server_run(filedescriptor_as_integer, wsgi_application) # This needs manual compilation with `WANT_STATSD=yes` bjoern.server_run(socket_object, wsgi_application, enable_statsd=True)