Installation

PyPy

PyPy is the fastest way to run your Falcon app. However, note that only the PyPy 2.7 compatible release is currently supported.

$ pip install falcon

CPython

Falcon also fully supports CPython 2.6-3.5.

A universal wheel is available on PyPI for the the Falcon framework. Installing it is as simple as:

$ pip install falcon

Installing the wheel is a great way to get up and running with Falcon quickly in a development environment, but for an extra speed boost when deploying your application in production, Falcon can compile itself with Cython.

The following commands tell pip to install Cython, and then to invoke Falcon’s setup.py, which will in turn detect the presence of Cython and then compile (AKA cythonize) the Falcon framework with the system’s default C compiler.

$ pip install cython
$ pip install --no-binary :all: falcon

Installing on OS X

Xcode Command Line Tools are required to compile Cython. Install them with this command:

$ xcode-select --install

The Clang compiler treats unrecognized command-line options as errors; this can cause problems under Python 2.6, for example:

clang: error: unknown argument: '-mno-fused-madd' [-Wunused-command-line-argument-hard-error-in-future]

You might also see warnings about unused functions. You can work around these issues by setting additional Clang C compiler flags as follows:

$ export CFLAGS="-Qunused-arguments -Wno-unused-function"

WSGI Server

Falcon speaks WSGI. If you want to actually serve a Falcon app, you will want a good WSGI server. Gunicorn and uWSGI are some of the more popular ones out there, but anything that can load a WSGI app will do. Gevent is an async library that works well with both Gunicorn and uWSGI.

$ pip install gevent [gunicorn|uwsgi]

Source Code

Falcon lives on GitHub, making the code easy to browse, download, fork, etc. Pull requests are always welcome! Also, please remember to star the project if it makes you happy.

Once you have cloned the repo or downloaded a tarball from GitHub, you can install Falcon like this:

$ cd falcon
$ pip install .

Or, if you want to edit the code, first fork the main repo, clone the fork to your desktop, and then run the following to install it using symbolic linking, so that when you change your code, the changes will be automagically available to your app without having to reinstall the package:

$ cd falcon
$ pip install -e .

Did we mention we love pull requests? :)