so we don't need to use virtualenv python package for creating a
virtualenv, the "venv" module in Python3 would suffice.
see also https://docs.python.org/3/library/venv.html
Signed-off-by: Kefu Chai <kchai@redhat.com>
The install deps command recommended by admin/build-doc doesn't install virtualenv which is required by admin/build-doc.
After manually installing virtualenv, admin/build-doc runned without issues.
Signed-off-by: Rodrigo Severo <rodrigo@fabricadeideias.com>
to address https://github.com/sphinx-doc/sphinx/issues/3620, we need to
use sphinx with its fix at
e049f86b2d
in other words, we need to use sphinx v2.0.0 and up. but sphinx 2.0
requires python >= 3.5, so we have to use python3 for building the
documents.
in this change:
* doc-requirements.txt: install python3 packages on debian derivatives
* build-doc: install python3.6 packages from EPEL7, and use python3
venv for using sphinx2
* doc-requirements.txt: bump up all python packages to latest
stable.
Signed-off-by: Kefu Chai <kchai@redhat.com>
