Instant has been retired after 2017.2.0 release. It is no longer needed in FEniCS and hence no longer maintained and tested. All test systems status information may be misleading.

Instant is a Python module that allows for instant inlining of C and C++ code in Python. It is a small Python module built on top of SWIG and Distutils.

Instant is part of the FEniCS Project.

For more information, visit


Documentation can be viewed at

Documentation Status

Automated Testing

We use Bitbucket Pipelines and Atlassian Bamboo to perform automated testing.

Bamboo Build Status

Code Coverage

Code coverage reports can be viewed at

Coverage Status


This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <>.