Remove "--always-unzip" option

news/8408.removal

@@ -0,0 +1 @@
+Remove undocumented and deprecated option ``--always-unzip``

src/pip/_internal/cli/cmdoptions.py

@@ -825,20 +825,6 @@ def _handle_no_use_pep517(option, opt, value, parser):
 )  # type: Callable[..., Option]
 
 
-# Deprecated, Remove later
-always_unzip = partial(
-    Option,
-    '-Z', '--always-unzip',
-    dest='always_unzip',
-    action='store_true',
-    help=SUPPRESS_HELP,
-)  # type: Callable[..., Option]
-# TODO: Move into a class that inherits from partial, currently does not
-# work as mypy complains functools.partial is a generic class.
-# This way we know we can ignore this option in docs auto generation
-setattr(always_unzip, 'deprecated', True)  # noqa: B010
-
-
 def _handle_merge_hash(option, opt_str, value, parser):
     # type: (Option, str, str, OptionParser) -> None
     """Given a value spelled "algo:digest", append the digest to a list

src/pip/_internal/operations/freeze.py

@@ -96,7 +96,6 @@ def freeze(
                             line.strip().startswith('#') or
                             line.startswith((
                                 '-r', '--requirement',
-                                '-Z', '--always-unzip',
                                 '-f', '--find-links',
                                 '-i', '--index-url',
                                 '--pre',

src/pip/_internal/req/req_file.py

@@ -64,7 +64,6 @@
     cmdoptions.require_hashes,
     cmdoptions.pre,
     cmdoptions.trusted_host,
-    cmdoptions.always_unzip,  # Deprecated
 ]  # type: List[Callable[..., optparse.Option]]
 
 # options to be passed to requirements

tests/functional/test_freeze.py

@@ -540,8 +540,6 @@ def test_freeze_nested_vcs(script, outer_vcs, inner_vcs):
     # Unchanged requirements below this line
     -r ignore.txt
     --requirement ignore.txt
-    -Z ignore
-    --always-unzip ignore
     -f http://ignore
     -i http://ignore
     --pre

tests/functional/test_uninstall.py

@@ -87,8 +87,7 @@ def test_uninstall_easy_install_after_import(script):
     Uninstall an easy_installed package after it's been imported
 
     """
-    result = script.easy_install('--always-unzip', 'INITools==0.2',
-                                 expect_stderr=True)
+    result = script.easy_install('INITools==0.2', expect_stderr=True)
     # the import forces the generation of __pycache__ if the version of python
     # supports it
     script.run('python', '-c', "import initools")

tests/unit/test_req_file.py

@@ -378,10 +378,6 @@ def test_set_finder_trusted_host(
         )
         assert expected in actual
 
-    def test_noop_always_unzip(self, line_processor, finder):
-        # noop, but confirm it can be set
-        line_processor("--always-unzip", "file", 1, finder=finder)
-
     def test_set_finder_allow_all_prereleases(self, line_processor, finder):
         line_processor("--pre", "file", 1, finder=finder)
         assert finder.allow_all_prereleases