Source code for meta_package_manager.managers.pip

# -*- coding: utf-8 -*-
#
# Copyright (c) 2016-2017 Kevin Deldycke <kevin@deldycke.com>
#                         and contributors.
# All Rights Reserved.
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

from __future__ import (
    absolute_import,
    division,
    print_function,
    unicode_literals
)

import re

from boltons.cacheutils import cachedproperty

from ..base import PackageManager
from ..platform import LINUX, MACOS


[docs]class Pip(PackageManager): platforms = frozenset([MACOS, LINUX])
[docs] def get_version(self): """ Fetch version from ``pip --version`` output.""" return self.run([self.cli_path, '--version']).split()[1]
@cachedproperty def installed(self): """ Fetch installed packages from ``pip list`` output. Raw CLI output sample: .. code-block:: shell-session $ pip list configparser (3.5.0) docutils (0.13.1) html5lib (0.9999999) imagesize (0.7.1) MarkupSafe (0.23) mccabe (0.5.3) meta-package-manager (2.4.0, /home/kev/venvs/meta-package-manager) nose (1.3.7) """ installed = {} output = self.run([self.cli_path] + self.cli_args + ['list']) if output: regexp = re.compile(r'(\S+) \((.*)\)') for outdated_pkg in output.split('\n'): if not outdated_pkg: continue matches = regexp.match(outdated_pkg) if not matches: continue package_id, installed_info = matches.groups() # Extract current non-standard location if found. installed_info = installed_info.split(',', 1) version = installed_info[0] special_location = " ({})".format(installed_info[1].strip()) \ if len(installed_info) > 1 else '' installed[package_id] = { 'id': package_id, 'name': package_id + special_location, 'installed_version': version} return installed @cachedproperty def outdated(self): """ Fetch outdated packages from ``pip list --outdated`` output. Raw CLI output sample: .. code-block:: shell-session $ pip list --outdated ccm (2.1.8, /Users/kdeldycke/ccm) - Latest: 2.1.11 [sdist] coverage (4.0.3) - Latest: 4.1 [wheel] IMAPClient (0.13) - Latest: 1.0.1 [wheel] Logbook (0.10.1) - Latest: 1.0.0 [sdist] mccabe (0.4.0) - Latest: 0.5.0 [wheel] mercurial (3.8.3) - Latest: 3.8.4 [sdist] pylint (1.5.6) - Latest: 1.6.1 [wheel] """ outdated = {} output = self.run([ self.cli_path] + self.cli_args + ['list', '--outdated']) if output: regexp = re.compile(r'(\S+) \((.*)\) - Latest: (\S+)') for outdated_pkg in output.split('\n'): if not outdated_pkg: continue matches = regexp.match(outdated_pkg) if not matches: continue package_id, installed_info, latest_version = matches.groups() # Extract current non-standard location if found. installed_info = installed_info.split(',', 1) version = installed_info[0] special_location = " ({})".format(installed_info[1].strip()) \ if len(installed_info) > 1 else '' outdated[package_id] = { 'id': package_id, 'name': package_id + special_location, 'installed_version': version, 'latest_version': latest_version} return outdated
[docs] def upgrade_cli(self, package_id): return [ self.cli_path] + self.cli_args + [ 'install', '--upgrade', package_id]
[docs] def upgrade_all_cli(self): """ Pip lacks support of a proper full upgrade command. See: https://github.com/pypa/pip/issues/59 """ raise NotImplementedError
[docs]class Pip2(Pip): cli_path = '/usr/local/bin/pip2' name = "Python 2's Pip"
[docs]class Pip3(Pip): cli_path = '/usr/local/bin/pip3' name = "Python 3's Pip"