Heroku buildpack: Python, NumPy, SciPy

This is a Heroku buildpack for Python apps, powered by pip that has been modified to add support for SciPy and NumPy libraries out of necessity since these libraries simply do not compile on Heroku.

Example usage:

$ ls
Procfile  requirements.txt  web.py

$ heroku create --buildpack git://github.com/heroku/heroku-buildpack-python.git

$ git push heroku master
...
-----> Python app detected
-----> Installing runtime (python-2.7.8)
-----> Installing dependencies using pip
       Downloading/unpacking requests (from -r requirements.txt (line 1))
       Installing collected packages: requests
       Successfully installed requests
       Cleaning up...
-----> Discovering process types
       Procfile declares types -> (none)

You can also add it to upcoming builds of an existing application:

$ heroku config:add BUILDPACK_URL=git://github.com/heroku/heroku-buildpack-python.git

The buildpack will detect your app as Python if it has the file requirements.txt in the root.

It will use Pip to install your dependencies, vendoring a copy of the Python runtime into your slug.

You can also provide arbitrary releases Python with a runtime.txt file.

$ cat runtime.txt
python-3.4.2

Runtime options include:

• python-2.7.8
• python-3.4.2
• pypy-2.4.0 (unsupported, experimental)
• pypy3-2.3.1 (unsupported, experimental)

Other unsupported runtimes are available as well.