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list.py
from __future__ import absolute_import import json import logging import warnings try: from itertools import zip_longest except ImportError: from itertools import izip_longest as zip_longest from pip._vendor import six from pip.basecommand import Command from pip.exceptions import CommandError from pip.index import PackageFinder from pip.utils import ( get_installed_distributions, dist_is_editable) from pip.utils.deprecation import RemovedInPip10Warning from pip.cmdoptions import make_option_group, index_group logger = logging.getLogger(__name__) class ListCommand(Command): """ List installed packages, including editables. Packages are listed in a case-insensitive sorted order. """ name = 'list' usage = """ %prog [options]""" summary = 'List installed packages.' def __init__(self, *args, **kw): super(ListCommand, self).__init__(*args, **kw) cmd_opts = self.cmd_opts cmd_opts.add_option( '-o', '--outdated', action='store_true', default=False, help='List outdated packages') cmd_opts.add_option( '-u', '--uptodate', action='store_true', default=False, help='List uptodate packages') cmd_opts.add_option( '-e', '--editable', action='store_true', default=False, help='List editable projects.') cmd_opts.add_option( '-l', '--local', action='store_true', default=False, help=('If in a virtualenv that has global access, do not list ' 'globally-installed packages.'), ) self.cmd_opts.add_option( '--user', dest='user', action='store_true', default=False, help='Only output packages installed in user-site.') cmd_opts.add_option( '--pre', action='store_true', default=False, help=("Include pre-release and development versions. By default, " "pip only finds stable versions."), ) cmd_opts.add_option( '--format', action='store', dest='list_format', choices=('legacy', 'columns', 'freeze', 'json'), help="Select the output format among: legacy (default), columns, " "freeze or json.", ) cmd_opts.add_option( '--not-required', action='store_true', dest='not_required', help="List packages that are not dependencies of " "installed packages.", ) index_opts = make_option_group(index_group, self.parser) self.parser.insert_option_group(0, index_opts) self.parser.insert_option_group(0, cmd_opts) def _build_package_finder(self, options, index_urls, session): """ Create a package finder appropriate to this list command. """ return PackageFinder( find_links=options.find_links, index_urls=index_urls, allow_all_prereleases=options.pre, trusted_hosts=options.trusted_hosts, process_dependency_links=options.process_dependency_links, session=session, ) def run(self, options, args): if options.allow_external: warnings.warn( "--allow-external has been deprecated and will be removed in " "the future. Due to changes in the repository protocol, it no " "longer has any effect.", RemovedInPip10Warning, ) if options.allow_all_external: warnings.warn( "--allow-all-external has been deprecated and will be removed " "in the future. Due to changes in the repository protocol, it " "no longer has any effect.", RemovedInPip10Warning, ) if options.allow_unverified: warnings.warn( "--allow-unverified has been deprecated and will be removed " "in the future. Due to changes in the repository protocol, it " "no longer has any effect.", RemovedInPip10Warning, ) if options.list_format is None: warnings.warn( "The default format will switch to columns in the future. " "You can use --format=(legacy|columns) (or define a " "format=(legacy|columns) in your pip.conf under the [list] " "section) to disable this warning.", RemovedInPip10Warning, ) if options.outdated and options.uptodate: raise CommandError( "Options --outdated and --uptodate cannot be combined.") packages = get_installed_distributions( local_only=options.local, user_only=options.user, editables_only=options.editable, ) if options.outdated: packages = self.get_outdated(packages, options) elif options.uptodate: packages = self.get_uptodate(packages, options) if options.not_required: packages = self.get_not_required(packages, options) self.output_package_listing(packages, options) def get_outdated(self, packages, options): return [ dist for dist in self.iter_packages_latest_infos(packages, options) if dist.latest_version > dist.parsed_version ] def get_uptodate(self, packages, options): return [ dist for dist in self.iter_packages_latest_infos(packages, options) if dist.latest_version == dist.parsed_version ] def get_not_required(self, packages, options): dep_keys = set() for dist in packages: dep_keys.update(requirement.key for requirement in dist.requires()) return set(pkg for pkg in packages if pkg.key not in dep_keys) def iter_packages_latest_infos(self, packages, options): index_urls = [options.index_url] + options.extra_index_urls if options.no_index: logger.debug('Ignoring indexes: %s', ','.join(index_urls)) index_urls = [] dependency_links = [] for dist in packages: if dist.has_metadata('dependency_links.txt'): dependency_links.extend( dist.get_metadata_lines('dependency_links.txt'), ) with self._build_session(options) as session: finder = self._build_package_finder(options, index_urls, session) finder.add_dependency_links(dependency_links) for dist in packages: typ = 'unknown' all_candidates = finder.find_all_candidates(dist.key) if not options.pre: # Remove prereleases all_candidates = [candidate for candidate in all_candidates if not candidate.version.is_prerelease] if not all_candidates: continue best_candidate = max(all_candidates, key=finder._candidate_sort_key) remote_version = best_candidate.version if best_candidate.location.is_wheel: typ = 'wheel' else: typ = 'sdist' # This is dirty but makes the rest of the code much cleaner dist.latest_version = remote_version dist.latest_filetype = typ yield dist def output_legacy(self, dist): if dist_is_editable(dist): return '%s (%s, %s)' % ( dist.project_name, dist.version, dist.location, ) else: return '%s (%s)' % (dist.project_name, dist.version) def output_legacy_latest(self, dist): return '%s - Latest: %s [%s]' % ( self.output_legacy(dist), dist.latest_version, dist.latest_filetype, ) def output_package_listing(self, packages, options): packages = sorted( packages, key=lambda dist: dist.project_name.lower(), ) if options.list_format == 'columns' and packages: data, header = format_for_columns(packages, options) self.output_package_listing_columns(data, header) elif options.list_format == 'freeze': for dist in packages: logger.info("%s==%s", dist.project_name, dist.version) elif options.list_format == 'json': logger.info(format_for_json(packages, options)) else: # legacy for dist in packages: if options.outdated: logger.info(self.output_legacy_latest(dist)) else: logger.info(self.output_legacy(dist)) def output_package_listing_columns(self, data, header): # insert the header first: we need to know the size of column names if len(data) > 0: data.insert(0, header) pkg_strings, sizes = tabulate(data) # Create and add a separator. if len(data) > 0: pkg_strings.insert(1, " ".join(map(lambda x: '-' * x, sizes))) for val in pkg_strings: logger.info(val) def tabulate(vals): # From pfmoore on GitHub: # https://github.com/pypa/pip/issues/3651#issuecomment-216932564 assert len(vals) > 0 sizes = [0] * max(len(x) for x in vals) for row in vals: sizes = [max(s, len(str(c))) for s, c in zip_longest(sizes, row)] result = [] for row in vals: display = " ".join([str(c).ljust(s) if c is not None else '' for s, c in zip_longest(sizes, row)]) result.append(display) return result, sizes def format_for_columns(pkgs, options): """ Convert the package data into something usable by output_package_listing_columns. """ running_outdated = options.outdated # Adjust the header for the `pip list --outdated` case. if running_outdated: header = ["Package", "Version", "Latest", "Type"] else: header = ["Package", "Version"] data = [] if any(dist_is_editable(x) for x in pkgs): header.append("Location") for proj in pkgs: # if we're working on the 'outdated' list, separate out the # latest_version and type row = [proj.project_name, proj.version] if running_outdated: row.append(proj.latest_version) row.append(proj.latest_filetype) if dist_is_editable(proj): row.append(proj.location) data.append(row) return data, header def format_for_json(packages, options): data = [] for dist in packages: info = { 'name': dist.project_name, 'version': six.text_type(dist.version), } if options.outdated: info['latest_version'] = six.text_type(dist.latest_version) info['latest_filetype'] = dist.latest_filetype data.append(info) return json.dumps(data)
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