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Python wrapper for Adobe's PostScript autohinter

Project description

Test and Build Codecov PyPI Language grade: C/C++ Language grade: Python Total alerts


A standalone version of AFDKO’s autohinter.

Building and running

This repository currently consists of a core autohinter written in C, a Python C extension providing an interface to it, and helper Python code.

To build the C extension:

python build

To install the C extension and the helper scripts globally:

pip install -r requirements.txt .

Alternatively to install them for the current user:

pip install -r requirements.txt --user .

The autohinter can be used by running:


To build just the autohintexe binary:

python build_exe


We have a test suite that can be run with:



For standard debugging, build with:

python build --debug

It is also possible to build a debug version with AddressSanitizer ("ASan") support (currently for Mac OS X only) with:

python build --asan
pip install .

Once it is installed, you can use the util/ shell script to launch a Python process that invokes the ASan libraries needed for debugging. Attach Xcode the launched process, then execute code in the process that triggers memory usage problems and wait for ASan to do its magic.

NOTE: be sure to build and install psautohint as described above; using other techniques such as python install will cause a re-build without ASan and debug support, which won't work.

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