License

A valid Steinwurf license is required if you wish to use this project.

Please request a license by filling out the license request form.

Kodo is available under a research- and education-friendly license, you can see the details here.

If you try to configure without a valid license, then you will get an error!

About

fifi-python contains a set of high-level Python bindings for the Fifi finite field C++ library. The bindings provide access to the arithmetic operations provided by Fifi. The examples folder provides sample applications showing the usage of the Python API.

If you have any questions or suggestions about this library, please contact us at our developer mailing list (hosted at Google Groups):

• http://groups.google.com/group/steinwurf-dev

Requirements

First of all, follow this Getting Started guide to install the basic tools required for the compilation (C++11 compiler, Git, Python).

The compilers used by Steinwurf are listed at the bottom of the buildbot page.

Linux

These steps may not work with your specific Linux distribution, but they may guide you in the right direction.

First, acquire the required packages from your package management system:

sudo apt-get update
sudo apt-get install python build-essential libpython-dev python-dev

If you are using Python 3, you'll need to install libpython3-dev instead.

Mac OSX

Install the latest XCode and Command Line Tools from the Mac Store.

Python 2.7 is pre-installed on OSX, and the required Python headers should also be available. If you are having trouble with the pre-installed Python version, then you can install a more recent Python version with MacPorts or Homebrew.

Windows

Install Python 2.7 (32-bit) and Visual Studio Express 2015 for Windows Desktop. Then set the VS90COMNTOOLS environment variable to:

C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\

so that Python distutils can detect your new compiler.

Building From Source

It is recommended to build the Python bindings from source.

First, clone the project:

git clone git@github.com:steinwurf/fifi-python.git

Configure and build the project:

cd fifi-python
python waf configure
python waf build

Now the project is built and you should be able to find the resulting fifi.so or fifi.pyd file here (the actual path and extension is dependent on your OS and Python version):

build/linux/src/fifi_python/fifi.so
build/darwin/src/fifi_python/fifi.dylib
build/win32/src/fifi_python/fifi.pyd

To use the bindings in your Python project you can do the following:

Using PYTHONPATH

You can add the build/platform/src/fifi_python/ path to your PYTHONPATH and import the module in your Python script:

>>> import fifi

Copy the bindings to your project

Another option is to copy the built bindings e.g. build/linux/src/fifi_python/fifi.so (for Linux) to your project directory. As an example if your script is stored in /path/to/hello.py, then copy the bindings to /path/to/fifi.so and you should be able to import fifi from within the hello.py script.