The provisional acceptance led to some additional valid concerns being raised
with the current design in the PEP, so I'm reverting it to Draft status
while we resolve them.
The key is in the build-system table, so making this a dash would
improve consistency. On English keyboards, it also avoids needing to
press shift. There seemed to be a consensus on distutils-sig in favour
of this change.
* 517: Remove install_editable hook (Option 1c)
This is the other option for --user editable installs: don't try to
standardise a mechanism. This could always be added back in a later PEP.
Alternative to gh-140
* Add note about removal of editable install
Thomas Kluyver
Nick Coghlan
Serhiy Storchaka
Donald Stufft