Don't mutate os.environ for each build
Created by: ssssam
It's less messy to use a separate dict for the clean environment. This also fixes YBD under Python 3, as you can't do 'dict.items() + dict.items()' in Python 3.
Created by: ssssam
It's less messy to use a separate dict for the clean environment. This also fixes YBD under Python 3, as you can't do 'dict.items() + dict.items()' in Python 3.