This is a Heroku buildpack for Python apps, powered by pip.
It has been modified from the Heroku original to add precompiled binaries for GEOS, PROJ.4, GDAL, and Shapely.
Optionally, it will also fetch and convert a single zipped OGR datasource to /app/datasource.shp when provided with the environment variable ZIPPED_DATA_URL.
Note that Heroku stack must be set to cedar for this to work:
Example usage:
$ ls
Procfile requirements.txt web.py
$ heroku create --stack cedar --buildpack https://github.com/codeforamerica/heroku-buildpack-pygeo
The following step is optional, and will create /app/datasource.shp based on the remote file.
$ heroku config:set ZIPPED_DATA_URL=http://forever.codeforamerica.org/heroku-pygeo/data-sfgov-org-parcels.zip
Make it so.
$ git push heroku master
...
-----> Fetching custom git buildpack... done
-----> Python app detected
-----> No runtime.txt provided; assuming python-2.7.4.
-----> Preparing Python runtime (python-2.7.4)
-----> Installing Distribute (0.6.36)
-----> Installing Pip (1.3.1)
-----> Fetching and installing GEOS 3.3.8
GEOS cached in /app/tmp/repo.git/.cache/vendor/geos
-----> Fetching and installing Proj 4.8.0
Proj cached in /app/tmp/repo.git/.cache/vendor/proj
-----> Fetching and installing GDAL 1.10.0
GDAL cached in /app/tmp/repo.git/.cache/vendor/gdal
-----> Preparing datasource
Downloading http://forever.codeforamerica.org/heroku-pygeo/data-sfgov-org-parcels.zip to /app/tmp/repo.git/.cache/2aac292c2cbe849d129ccb4bbb7c1c3d.zip
citylots.dbf --> /tmp/tmpiAkkBI/datasource.dbf
citylots.prj --> /tmp/tmpiAkkBI/datasource.prj
citylots.shp --> /tmp/tmpiAkkBI/datasource.shp
citylots.shx --> /tmp/tmpiAkkBI/datasource.shx
/tmp/tmpiAkkBI/datasource.shp --> /app/tmp/repo.git/.cache/datasource.shp
(ogr2ogr might take a long time)
-----> Installing dependencies using Pip (1.3.1)
...
Successfully installed shapely
Cleaning up...
You can also add it to upcoming builds of an existing application:
$ heroku config:add BUILDPACK_URL=git://github.com/codeforamerica/heroku-buildpack-pygeo.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-3.3.0
Runtime options include:
- python-2.7.4
- python-3.3.1
- pypy-1.9 (experimental)