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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
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