"pip3 install cffi" downloads and installs cffi-1.11.5-cp36-cp36m-manylinux1_x86_64.whl successfully on CentOS7 X64 and Debian 9 x64 without issues.
It only fails to install the package, crashing with a core dump using the pip3 package bundled with Ubuntu 18.04. Reported here as this issue is specific to Ubuntu 18.04.
I disagree with the "Invalid" status.
"pip3 install cffi" downloads and installs cffi-1. 11.5-cp36- cp36m-manylinux 1_x86_64. whl successfully on CentOS7 X64 and Debian 9 x64 without issues.
It only fails to install the package, crashing with a core dump using the pip3 package bundled with Ubuntu 18.04. Reported here as this issue is specific to Ubuntu 18.04.