Ipopt (Interior Point OPTimizer, pronounced eye-pea-opt) is a software package for large-scale nonlinear optimization. Ipopt is available from the COIN-OR initiative, under the Eclipse Public License (EPL).
cyipopt is a Python wrapper around Ipopt. It enables using Ipopt from the comfort of the Python programming language.
| Anaconda | 
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| PyPI | 
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| Read the Docs |
This repository was forked in 2016 from https://bitbucket.org/amitibo/cyipopt and is now considered the primary repository. The fork includes a SciPy-style interface and ability to handle exceptions in the callback functions.
As of version 1.1.0 (2021-09-07), the distribution is released under the name "cyipopt" on PyPi (https://pypi.org/project/cyipopt). Before version 1.1.0, it was released under the name "ipopt" (https://pypi.org/project/ipopt).
We recommend using conda to install cyipopt on Linux, Mac, and Windows:
conda install -c conda-forge cyipopt
Other installation options are present in the documentation.
manylinux wheels can be built for a tagged version (GIT_TAG below) of cyipopt via docker by running (while in the root of this repo):
docker run -v $(pwd):/wheels --rm --platform=linux/amd64 quay.io/pypa/manylinux_2_28_x86_64 bash /wheels/build_manylinux_wheels.sh GIT_TAG
for linux/amd64 and:
docker run -v $(pwd):/wheels --rm --platform=linux/aarch64 quay.io/pypa/manylinux_2_28_aarch64 bash /wheels/build_manylinux_wheels.sh GIT_TAG
for linux/aarch64 platforms. Built wheels appear at the folder the command was executed from.
Warning
Docker supports emulating non-native platforms to e.g. produce ARM binaries from an AMD64 host. However this can be quite slow (~1h for our case).
cyipopt is open-source code released under the EPL license, see the
LICENSE file.
For bug reports, feature requests, comments, patches use the GitHub issue tracker and/or pull request system.