Remove the requirement that services explicitly enable python3 support
in order to be tested under python3 when running with python3
enabled. Keep the enable_python3_package() function for backwards
compatibility, for now, since it is called in some devstack plugins.
Explicitly add swift to the set of packages that should not be installed
using python3 by default until full support is available.
Change-Id: I8ab0a7c242bbf5bf3f091f5a85a98e2f4543f856
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
Add variables ENABLED_PYTHON3_PACKAGES and DISABLED_PYTHON3_PACKAGES to
work like ENABLED_SERVICES and DISABLED_SERVICES and to manage which
packages are installed using Python 3. Move the list of whitelisted
packages in pip_install to the default for ENABLED_PYTHON3_PACKAGES,
except swift which is not enabled by default for now.
Add enable_python3_package and disable_python3_package functions to make
editing the variables from local.conf easier.
Add python3_enabled_for and python3_disabled_for functions to check the
settings against packages being installed by pip.
Update pip_install to check if python3 is disabled for a service, then
see if it is explicitly enabled, and only then fall back to looking at
the classifiers in the packaging metadata.
Update pip_install messages to give more detail about why the choice
between python 2 and 3 is being made for a given package.
Change-Id: I69857d4e11f4767928614a3b637c894bcd03491f
Signed-off-by: Doug Hellmann <doug@doughellmann.com>
Doug Hellmann