45a38b5352
For the next release of gem5, we are dropping support for Python2. The Ubuntu 18.04 Docker images were running with Python2. This has been updated. It should be noted that there is, at present, no eligant solution to the issue that older versions of Scons (such as that obtainable via APT in Ubuntu 18.04) use Python2. Those wishing to compile with these Docker Images should use `/usr/bin/env python3 $(which scons) build/X86/gem5.op5` Change-Id: Ic36ecc7196688daff21af2bb3a76381966f38f60 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/36595 Maintainer: Gabe Black <gabe.black@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>