pip install defaults to --user

The default would be python-prefix, which is rubbish. We could mangle this to TEA_PREFIX/python.org which is also fairly rubbish. TEA_PREFIX is a possible, but still lame. ~/.local is a standard and our magic adds the bin there to PATH

projects/pip.pypa.io/package.yml

@@ -15,7 +15,10 @@ runtime:
 build:
   dependencies:
     curl.se: '*'
+    gnu.org/patch: '*'
   script: |
+    patch -p1 <props/user-install.patch
+
     curl -O https://bootstrap.pypa.io/get-pip.py
 
     test -d bootstrap || mkdir bootstrap

projects/pip.pypa.io/user-install.patch

@@ -0,0 +1,64 @@
+diff --git a/src/pip/_internal/commands/configuration.py b/src/pip/_internal/commands/configuration.py
+index 84b134e..c7e6775 100644
+--- a/src/pip/_internal/commands/configuration.py
++++ b/src/pip/_internal/commands/configuration.py
+@@ -79,7 +79,7 @@ class ConfigurationCommand(Command):
+             "--user",
+             dest="user_file",
+             action="store_true",
+-            default=False,
++            default=True,
+             help="Use the user configuration file only",
+         )
+
+diff --git a/src/pip/_internal/commands/freeze.py b/src/pip/_internal/commands/freeze.py
+index 5fa6d39..e7f5891 100644
+--- a/src/pip/_internal/commands/freeze.py
++++ b/src/pip/_internal/commands/freeze.py
+@@ -51,7 +51,7 @@ class FreezeCommand(Command):
+             "--user",
+             dest="user",
+             action="store_true",
+-            default=False,
++            default=True,
+             help="Only output packages installed in user-site.",
+         )
+         self.cmd_opts.add_option(cmdoptions.list_path())
+diff --git a/src/pip/_internal/commands/inspect.py b/src/pip/_internal/commands/inspect.py
+index 27c8fa3..6058356 100644
+--- a/src/pip/_internal/commands/inspect.py
++++ b/src/pip/_internal/commands/inspect.py
+@@ -39,7 +39,7 @@ class InspectCommand(Command):
+             "--user",
+             dest="user",
+             action="store_true",
+-            default=False,
++            default=True,
+             help="Only output packages installed in user-site.",
+         )
+         self.cmd_opts.add_option(cmdoptions.list_path())
+diff --git a/src/pip/_internal/commands/install.py b/src/pip/_internal/commands/install.py
+index b20aedd..d2151e0 100644
+--- a/src/pip/_internal/commands/install.py
++++ b/src/pip/_internal/commands/install.py
+@@ -129,6 +129,7 @@ class InstallCommand(RequirementCommand):
+             "--user",
+             dest="use_user_site",
+             action="store_true",
++            default=True,
+             help=(
+                 "Install to the Python user install directory for your "
+                 "platform. Typically ~/.local/, or %APPDATA%\\Python on "
+diff --git a/src/pip/_internal/commands/list.py b/src/pip/_internal/commands/list.py
+index 8e1426d..1e269dc 100644
+--- a/src/pip/_internal/commands/list.py
++++ b/src/pip/_internal/commands/list.py
+@@ -83,7 +83,7 @@ class ListCommand(IndexGroupCommand):
+             "--user",
+             dest="user",
+             action="store_true",
+-            default=False,
++            default=True,
+             help="Only output packages installed in user-site.",
+         )
+         self.cmd_opts.add_option(cmdoptions.list_path())