build-system/pyproject: Use python-sans-pip-wrapper as default-python.

Also adds python-setuptools and python-wheel to relevant packages,
either to native-inputs or to propagated inputs if the pkg_resources
Python module is loaded at runtime.

* guix/build-system/pyproject.scm (default-python): Default to
python-sans-pip-wrapper.

Change-Id: I2d986c2225114f54459dd6bb360913106e52cdf4

gnu/packages/databases.scm

@@ -3229,6 +3229,7 @@ protocol with Cython for performance.")
     (build-system pyproject-build-system)
     (arguments '(#:tests? #f))           ;test suite requires docker
     (propagated-inputs (list python-pymysql))
+    (native-inputs (list python-setuptools python-wheel))
     (home-page "https://github.com/aio-libs/aiomysql")
     (synopsis "MySQL driver for Python")
     (description "@code{aiomysql} is a driver for accessing a MySQL database
@@ -3670,7 +3671,8 @@ on localhost.")
     (build-system pyproject-build-system)
     (native-inputs
      (list python-cython ; for C extensions
-           python-pytest python-mock python-pytest-xdist)) ; for tests
+           python-pytest python-mock python-pytest-xdist ; for tests
+           python-setuptools python-wheel))
     (propagated-inputs
      (list python-greenlet))
     (arguments
@@ -3905,7 +3907,7 @@ text search extension.")
     (propagated-inputs (list python-click python-click-default-group
                              python-dateutil python-sqlite-fts4
                              python-tabulate))
-    (native-inputs (list python-pytest))
+    (native-inputs (list python-pytest python-setuptools python-wheel))
     (home-page "https://github.com/simonw/sqlite-utils")
     (synopsis
      "CLI tool and Python utility functions for manipulating SQLite databases")
@@ -3978,7 +3980,7 @@ PickleShare.")
          "10yfbasi4mq63g0svyl1h49ylwn9znjylq78id16dzxzk9q9ipdx"))))
     (build-system pyproject-build-system)
     (native-inputs
-     (list unzip))
+     (list unzip python-setuptools python-wheel))
     (inputs (list sqlite-next))         ;SQLite 3.45.1 required.
     (arguments
      (list
@@ -4333,7 +4335,7 @@ for Python.  The design goals are:
                             ;; The fix was forwarded upstream, see:
                             ;; https://github.com/redis/hiredis-py/pull/160.
                             (delete-file "tests/__init__.py"))))))
-    (native-inputs (list python-pytest))
+    (native-inputs (list python-pytest python-setuptools python-wheel))
     (inputs (list hiredis))
     (home-page "https://github.com/redis/hiredis-py")
     (synopsis "Python extension that wraps protocol parsing code in hiredis")
@@ -4457,6 +4459,8 @@ reasonable substitute.")
            python-pytest
            python-pytest-asyncio
            python-pytest-timeout
+           python-setuptools
+           python-wheel
            redis))
     (propagated-inputs
      (list python-async-timeout))