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File Content: `freeze.py`

import sys
from optparse import Values
from typing import List

from pip._internal.cli import cmdoptions
from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import SUCCESS
from pip._internal.operations.freeze import freeze
from pip._internal.utils.compat import stdlib_pkgs

DEV_PKGS = {"pip", "setuptools", "distribute", "wheel"}


class FreezeCommand(Command):
    """
    Output installed packages in requirements format.

    packages are listed in a case-insensitive sorted order.
    """

    usage = """
      %prog [options]"""
    log_streams = ("ext://sys.stderr", "ext://sys.stderr")

    def add_options(self) -> None:
        self.cmd_opts.add_option(
            "-r",
            "--requirement",
            dest="requirements",
            action="append",
            default=[],
            metavar="file",
            help=(
                "Use the order in the given requirements file and its "
                "comments when generating output. This option can be "
                "used multiple times."
            ),
        )
        self.cmd_opts.add_option(
            "-l",
            "--local",
            dest="local",
            action="store_true",
            default=False,
            help=(
                "If in a virtualenv that has global access, do not output "
                "globally-installed packages."
            ),
        )
        self.cmd_opts.add_option(
            "--user",
            dest="user",
            action="store_true",
            default=False,
            help="Only output packages installed in user-site.",
        )
        self.cmd_opts.add_option(cmdoptions.list_path())
        self.cmd_opts.add_option(
            "--all",
            dest="freeze_all",
            action="store_true",
            help=(
                "Do not skip these packages in the output:"
                " {}".format(", ".join(DEV_PKGS))
            ),
        )
        self.cmd_opts.add_option(
            "--exclude-editable",
            dest="exclude_editable",
            action="store_true",
            help="Exclude editable package from output.",
        )
        self.cmd_opts.add_option(cmdoptions.list_exclude())

        self.parser.insert_option_group(0, self.cmd_opts)

    def run(self, options: Values, args: List[str]) -> int:
        skip = set(stdlib_pkgs)
        if not options.freeze_all:
            skip.update(DEV_PKGS)

        if options.excludes:
            skip.update(options.excludes)

        cmdoptions.check_list_path_option(options)

        for line in freeze(
            requirement=options.requirements,
            local_only=options.local,
            user_only=options.user,
            paths=options.path,
            isolated=options.isolated_mode,
            skip=skip,
            exclude_editable=options.exclude_editable,
        ):
            sys.stdout.write(line + "\n")
        return SUCCESS

Name	Size	Permission
__pycache__	---	0755
__init__.py	3736 bytes	0644
cache.py	7524 bytes	0644
check.py	1685 bytes	0644
completion.py	2958 bytes	0644
configuration.py	8944 bytes	0644
debug.py	6629 bytes	0644
download.py	4904 bytes	0644
freeze.py	2951 bytes	0644
hash.py	1703 bytes	0644
help.py	1132 bytes	0644
index.py	4762 bytes	0644
install.py	27851 bytes	0644
list.py	12203 bytes	0644
search.py	5697 bytes	0644
show.py	8064 bytes	0644
uninstall.py	3526 bytes	0644
wheel.py	6168 bytes	0644

File Content: freeze.py

File Content: `freeze.py`