gnu: python2-astroid: Add missing input and don't inherit.

* gnu/packages/python-xyz.scm (python2-astroid)[arguments]: Do not inherit
from Python 3 package variant.
[propagated-inputs]: Do not inherit and add python2-six.

Merge branch 'master' into core-updates-frozen

gnu: Add python-iwlib.

* gnu/packages/python-xyz.scm (python-iwlib): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: Add python-dbus-next.

* gnu/packages/python-xyz.scm (python-debus-next): New variable.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: python-xcffib: Upgrade to 0.11.1.

Required for qtile.

* gnu/packages/python-xyz.scm (python-xcffib): Upgrade to 0.11.1.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu: python-pygit2: Update to 1.7.1.

* gnu/packages/python-xyz.scm (python-pygit2): Update to 1.7.1.

gnu: python-dnspython: Patch out problematic getprotobyname calls.

* gnu/packages/python-xyz.scm (python-dnspython)
[phases]{patch-getprotobyname-calls}: New phase.

gnu: Add python-update-checker.

* gnu/packages/python-xyz.scm (python-update-checker): New variable.

gnu: python-nautilus: Remove package.

This package dates from 2016 and looks inactive.  The packages that used this
as an input actually wanted nautilus-python (not currently packaged),
for (optional) integration with the nautilus file manager.

* gnu/packages/python-xyz.scm (python-nautilus): Remove variable.
* gnu/packages/gnome-xyz.scm (gnome-shell-extension-gsconnect)[inputs]: Remove
it.
* gnu/packages/sync.scm (nexcloud-client)[inputs]: Remove it.
* gnu/packages/syncthing.scm (syncthing-gtk)[inputs]: Remove it.

Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>

gnu: python-invoke: Update to 1.6.0.

* gnu/packages/python-xyz.scm (python-invoke): Update to 1.6.0.

gnu: python-invoke: Delete incompatible and unused code.

* gnu/packages/python-xyz.scm (python-invoke)[arguments]: Add build phase
'delete-python2-code.
(python2-invoke)[arguments]: Remove that phase and add 'delete-python3-code.

gnu: python-seaborn: Update to 0.11.2.

* gnu/packages/python-xyz.scm (python-seaborn): Update to 0.11.2.

gnu: python-numpy: Alias to python-numpy-1.20.

Numpy 1.20 is required by numba and umap-learn.  Attempts to rename numpy 1.20
to allow it to coexist with numpy 1.21 in the same environment have not been
successful.

* gnu/packages/python-xyz.scm (python-numpy): Rename to...
(python-numpy-next): ...this variable.
(python2-numpy): Use python-numpy-next package as parent.
(python-numpy-1.20): Inherit from python-numpy-next.
(python-numpy): New variable pointing to python-numpy-1.20.
(python-numba)[propagated-inputs]: Replace python-numpy-1.20 with
python-numpy.

gnu: python-qtconsole: Add dependency on python-pyqt.

* gnu/packages/python-xyz.scm (python-qtconsole)[propagated-inputs]: Add
PYTHON-PYQT.

gnu: python-joblib: Update to 1.1.0.

* gnu/packages/python-xyz.scm (python-joblib): Update to 1.1.0.
[arguments]: Disable one test.

gnu: python2-joblib: Do not inherit source from python-joblib.

* gnu/packages/python-xyz.scm (python2-joblib)[version]: Explicitly set to
0.14.1.
[source]: Do not inherit.

gnu: python-numba: Update to 0.54.1.

* gnu/packages/python-xyz.scm (python-numba): Update to 0.54.1.
[propagated-inputs]: Replace python-numpy with python-numpy-1.20.
[arguments]: Add phase 'disable-failing-tests.

gnu: python-numba: Run tests conditionally.

* gnu/packages/python-xyz.scm (python-numba)[arguments]: Respect TESTS? argument.

gnu: python-numba: Remove trailing #T.

* gnu/packages/python-xyz.scm (python-numba)[arguments]: Remove trailing #T
from build phase.

gnu: Add python-numpy-1.20.

* gnu/packages/python-xyz.scm (python-numpy-1.20): New variable.