Python 2.7 and Python 3.8 select different platforms for "best"
With Python 2.7:
lb-run Bender/latest bash
WARNING:lb-run:Selected v35r6 for "latest"
WARNING:lb-run:Decided best platform to use is x86_64-centos7-gcc8-opt
With Python 3.8:
lb-run Bender/latest bash --norc
WARNING:lb-run:Selected v35r6 for "latest"
WARNING:lb-run:Decided best platform to use is x86_64-centos7-clang8-opt