Remove obsolete mentions of the compress program and .Z archives.

Packaging uses the shutil.make_archive function copied from distutils,
which does not support compress.  There is no test to check that
“bdist --format whatever” works, so this slipped by.

Doc/packaging/builtdist.rst

@@ -75,9 +75,6 @@ The available formats for built distributions are:
 | ``gztar``   | gzipped tar file             | (1),(3) |
 |             | (:file:`.tar.gz`)            |         |
 +-------------+------------------------------+---------+
-| ``ztar``    | compressed tar file          | \(3)    |
-|             | (:file:`.tar.Z`)             |         |
-+-------------+------------------------------+---------+
 | ``tar``     | tar file (:file:`.tar`)      | \(3)    |
 +-------------+------------------------------+---------+
 | ``zip``     | zip file (:file:`.zip`)      | (2),(4) |
@@ -98,8 +95,8 @@ Notes:
    default on Windows
 
 (3)
-   requires external utilities: :program:`tar` and possibly one of :program:`gzip`,
-   :program:`bzip2`, or :program:`compress`
+   requires external utilities: :program:`tar` and possibly one of :program:`gzip`
+   or :program:`bzip2`
 
 (4)
    requires either external :program:`zip` utility or :mod:`zipfile` module (part
@@ -109,14 +106,14 @@ You don't have to use the :command:`bdist` command with the :option:`--formats`
 option; you can also use the command that directly implements the format you're
 interested in.  Some of these :command:`bdist` "sub-commands" actually generate
 several similar formats; for instance, the :command:`bdist_dumb` command
-generates all the "dumb" archive formats (``tar``, ``ztar``, ``gztar``, and
+generates all the "dumb" archive formats (``tar``, ``gztar``, and
 ``zip``).  The :command:`bdist` sub-commands, and the formats generated by
 each, are:
 
 +--------------------------+-----------------------+
 | Command                  | Formats               |
 +==========================+=======================+
-| :command:`bdist_dumb`    | tar, ztar, gztar, zip |
+| :command:`bdist_dumb`    | tar, gztar, zip       |
 +--------------------------+-----------------------+
 | :command:`bdist_wininst` | wininst               |
 +--------------------------+-----------------------+

Doc/packaging/sourcedist.rst

@@ -32,9 +32,6 @@ to create a gzipped tarball and a zip file.  The available formats are:
 | ``bztar`` | bzip2'ed tar file       |         |
 |           | (:file:`.tar.bz2`)      |         |
 +-----------+-------------------------+---------+
-| ``ztar``  | compressed tar file     | \(4)    |
-|           | (:file:`.tar.Z`)        |         |
-+-----------+-------------------------+---------+
 | ``tar``   | tar file (:file:`.tar`) |         |
 +-----------+-------------------------+---------+
 
@@ -50,11 +47,7 @@ Notes:
    requires either external :program:`zip` utility or :mod:`zipfile` module (part
    of the standard Python library since Python 1.6)
 
-(4)
-   requires the :program:`compress` program. Notice that this format is now
-   pending for deprecation and will be removed in the future versions of Python.
-
-When using any ``tar`` format (``gztar``, ``bztar``, ``ztar`` or
+When using any ``tar`` format (``gztar``, ``bztar`` or
 ``tar``) under Unix, you can specify the ``owner`` and ``group`` names
 that will be set for each member of the archive.
 

Lib/packaging/command/bdist.py

@@ -64,21 +64,19 @@ class bdist(Command):
                       'os2': 'zip'}
 
     # Establish the preferred order (for the --help-formats option).
-    format_commands = ['gztar', 'bztar', 'ztar', 'tar',
+    format_commands = ['gztar', 'bztar', 'tar',
                        'wininst', 'zip', 'msi']
 
     # And the real information.
     format_command = {'gztar': ('bdist_dumb', "gzip'ed tar file"),
                       'bztar': ('bdist_dumb', "bzip2'ed tar file"),
-                      'ztar':  ('bdist_dumb', "compressed tar file"),
                       'tar':   ('bdist_dumb', "tar file"),
                       'wininst': ('bdist_wininst',
                                   "Windows executable installer"),
                       'zip':   ('bdist_dumb', "ZIP file"),
-                      'msi':   ('bdist_msi',  "Microsoft Installer")
+                      'msi':   ('bdist_msi',  "Microsoft Installer"),
                      }
 
-
     def initialize_options(self):
         self.bdist_base = None
         self.plat_name = None
@@ -109,7 +107,8 @@ class bdist(Command):
             try:
                 self.formats = [self.default_format[os.name]]
             except KeyError:
-                raise PackagingPlatformError("don't know how to create built distributions " + \
+                raise PackagingPlatformError(
+                    "don't know how to create built distributions "
                     "on platform %s" % os.name)
 
         if self.dist_dir is None:

Lib/packaging/command/bdist_dumb.py

@@ -13,6 +13,7 @@ from packaging.command.cmd import Command
 from packaging.errors import PackagingPlatformError
 from packaging import logger
 
+
 class bdist_dumb(Command):
 
     description = 'create a "dumb" built distribution'
@@ -23,7 +24,7 @@ class bdist_dumb(Command):
                      "platform name to embed in generated filenames "
                      "(default: %s)" % get_platform()),
                     ('format=', 'f',
-                     "archive format to create (tar, ztar, gztar, zip)"),
+                     "archive format to create (tar, gztar, zip)"),
                     ('keep-temp', 'k',
                      "keep the pseudo-installation tree around after " +
                      "creating the distribution archive"),
@@ -48,7 +49,6 @@ class bdist_dumb(Command):
                       'nt': 'zip',
                       'os2': 'zip'}
 
-
     def initialize_options(self):
         self.bdist_dir = None
         self.plat_name = None
@@ -69,8 +69,9 @@ class bdist_dumb(Command):
             try:
                 self.format = self.default_format[os.name]
             except KeyError:
-                raise PackagingPlatformError(("don't know how to create dumb built distributions " +
-                       "on platform %s") % os.name)
+                raise PackagingPlatformError(
+                    "don't know how to create dumb built distributions "
+                    "on platform %s" % os.name)
 
         self.set_undefined_options('bdist', 'dist_dir', 'plat_name')
 

Lib/packaging/tests/test_command_bdist.py

@@ -27,33 +27,30 @@ class BuildTestCase(support.TempdirManager,
         util.get_platform = self._get_platform
 
     def test_formats(self):
-
         # let's create a command and make sure
-        # we can fix the format
-        pkg_pth, dist = self.create_dist()
+        # we can set the format
+        dist = self.create_dist()[1]
         cmd = bdist(dist)
         cmd.formats = ['msi']
         cmd.ensure_finalized()
         self.assertEqual(cmd.formats, ['msi'])
 
-        # what format bdist offers ?
-        # XXX an explicit list in bdist is
-        # not the best way to  bdist_* commands
-        # we should add a registry
-        formats = sorted(('zip', 'gztar', 'bztar', 'ztar',
-                          'tar', 'wininst', 'msi'))
+        # what format does bdist offer?
+        # XXX hard-coded lists are not the best way to find available bdist_*
+        # commands; we should add a registry
+        formats = ['bztar', 'gztar', 'msi', 'tar', 'wininst', 'zip']
         found = sorted(cmd.format_command)
         self.assertEqual(found, formats)
 
     def test_skip_build(self):
-        pkg_pth, dist = self.create_dist()
+        dist = self.create_dist()[1]
         cmd = bdist(dist)
         cmd.skip_build = False
         cmd.formats = ['ztar']
         cmd.ensure_finalized()
         self.assertFalse(self._get_platform_called)
 
-        pkg_pth, dist = self.create_dist()
+        dist = self.create_dist()[1]
         cmd = bdist(dist)
         cmd.skip_build = True
         cmd.formats = ['ztar']