File "/srv/reimzul/results/c7-kernel-alt.noarch/kernel/20191211172039/4.18.0-147.0.3.el7.noarch/mock.cfg", line 1

    config:_opts['root'] = 'kernel-4.18.0-147.0.3.el7-20191211172039-20851'

          ^

SyntaxError: invalid syntax

ERROR: Error in configuration