In the Cygwin installer, the version options for "python3-devel" are several sub-versions of 3.6 and a ("Test") version of 3.8, but there's no option for any 3.7. However, "python37-devel" is another option in the installer. Why? I have never understood exactly the difference between the "python3-devel" package and the "python3x-devel" packages. Thanks. -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple