gnu: Add python-rfc3986-validator.

* gnu/packages/python-xyz.scm (python-rfc3986-validator): New variable.

Change-Id: If63c2d8798bc8efd021e6ab008cd5017b3dc7fd1

gnu: Add python-jsonschema-specifications.

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

Change-Id: If1f7fa0d4e0bc505d9378ce892af298365754daf

gnu: Add python-referencing.

* gnu/packages/python-xyz.scm (python-referencing,
python-referencing-bootstrap): New variables.

Change-Id: I16b9d32644204a72c46a2d51ebf3771d90cd099a

gnu: Add python-pep440.

* gnu/packages/python-xyz.scm (python-pep440): New variable.

Change-Id: I307eb0d50e5e6378fb840b775964761833cb9488

gnu: python-rich: Remove python-ipywidgets.

This is done to avoid unnecessary dependency cycles involving jupyter.

* gnu/packages/python-xyz.scm (python-rich)[arguments]: Disable some tests.
[propagated-inputs]: Remove python-ipywidgets.

Change-Id: I7a514ea7647086dc6f831c1167c28d145130cfa1

gnu: python-nbconvert: Add missing texlive inputs.

* gnu/packages/python-xyz.scm (python-nbconvert)[propagated-inputs]: Add
texlive-amsmath, texlive-etoolbox, texlive-infwarerr, and texlive-kvoptions.

Change-Id: Id3c93afc9c459e65e1a2e88cc91b4ceac07007ec

gnu: python-nbclient: Add Setuptools and Wheel.

* gnu/packages/jupyter.scm (python-nbclient)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: I0c203c2545587c45f5878c5772c29d49c7939811

gnu: python-openpyxl: Add Setuptools and Wheel.

* gnu/packages/python-xyz.scm (python-openpyxl)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: I38368e62af3ab117141cd42bf8181fdb5b1f59fb

gnu: python-jinja2: Add setuptools and wheel.

* gnu/packages/python-xyz.scm (python-jinja2)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: Iccf3ee9014f581792c9fdef9d6be7e8af3d9c9b4

gnu: python-pytest-xdist: Add setuptools and wheel.

* gnu/packages/check.scm (python-pytest-xdist)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: I0aa7130a6e1bc0741edb164fd145bc20d754c007

gnu: snakemake-6: Add Setuptools and Wheel.

* gnu/packages/python-xyz.scm (snakemake-6)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: I129616694f09763561913cd8939dd2de46e6df51

gnu: python-pyls-black: Add missing inputs.

* gnu/packages/python-xyz.scm (python-pyls-black)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: Ia5f321544d3789ba53bb6e8dc6dbea2350099348

gnu: python-versioneer: Add missing input and use minimal git.

* gnu/packages/python-xyz.scm (python-versioneer)[native-inputs]: Add
python-pypa-build and replace git with git-minimal.

Change-Id: I7cca27d87f5c6f7da1318c87cac134176335b56a

gnu: python-dbus-python: Add missing input.

* gnu/packages/python-xyz.scm (python-dbus-python)[native-inputs]: Add
python-setuptools.

Change-Id: I3b813a5a3edcc878b552aa7885a47c1079d7acda

gnu: python-pyproject-metadata: Disable two tests.

* gnu/packages/python-xyz.scm (python-pyproject-metadata)[arguments]:
Disable two tests.
(python-pyproject-metadata-0.7)[arguments]: Override.

Change-Id: I13bdf9d9e8705d84306f235b1abd58a147726426

gnu: python-partd: Add missing input.

* gnu/packages/python-xyz.scm (python-partd)[native-inputs]: Add
python-setuptools.

Change-Id: I95ae319cbdcdf118841300b2b89d2d34c08b28f8

gnu: python-billiard: Add missing inputs.

* gnu/packages/python-xyz.scm (python-billiard)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: I1d9cd2adcd950cef622c9d81ed7cec5dea25f7e0

gnu: python-box: Add missing input.

* gnu/packages/python-xyz.scm (python-box)[native-inputs]: Add
python-setuptools.

Change-Id: I3889fd74bc18bef58293d5a3a1ab7e19fa810ef8

gnu: python-joblib: Add missing inputs.

* gnu/packages/python-xyz.scm (python-joblib)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: I4e19c611eb9faf5921e406e77b6f1e88f98daf8b

gnu: python-vine: Add missing inputs.

* gnu/packages/python-xyz.scm (python-vine)[native-inputs]: Add
python-setuptools and python-wheel.

Change-Id: Idf7fbcb9d44681b4394ce3e2d3e403371169ff7a