contourpy 1.0.6

Version 1.0.6

on Python PyPI

This release features major improvements to the robustness of the threaded algorithm on both
CPython and PyPy.

Thanks to new contributors @mgorny and @Zac-HD.

Threaded algorithm improvements:

• Correctly acquire and release GIL in multithreaded code #172
• Update benchmarks in line with recent changes #174

CI improvements:

• Add PyPy 3.9 to CI #173
• Use numpy debug build in debug CI run #175