Dropped any notion of allowing the user to specify the build directories: these must come from the 'build' command.  This means we no longer need the misconceived 'set_peer_option()' method in Command and, more importantly, sweeps away a bunch of potential future complexity to handle this tricky case.
Dropped any notion of allowing the user to specify the build directories:
these must come from the 'build' command.  This means we no longer need
the misconceived 'set_peer_option()' method in Command and, more importantly,
sweeps away a bunch of potential future complexity to handle this tricky
case.

pypa/setuptools,pypa/setuptools,pypa/setuptools