Source code for meta_package_manager.managers.pip

# -*- coding: utf-8 -*-
#
# Copyright (c) 2016-2018 Kevin Deldycke <kevin@deldycke.com>
#                         and contributors.
# All Rights Reserved.
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# 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.
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# 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.
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import re

from boltons.cacheutils import cachedproperty

import simplejson as json

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


[docs]class Pip(PackageManager): platforms = frozenset([MACOS, LINUX, WINDOWS]) requirement = '>= 9.0.0' # Deny this manager to be tied to a CLI, as we only use this class as a # common skeleton for pip2 and pip3. cli_name = None
[docs] def get_version(self): """ Fetch version from ``pip --version`` output.""" output = self.run([self.cli_path, '--version']) if output: return output.split()[1]
@cachedproperty def installed(self): """ Fetch installed packages from ``pip list`` output. Raw CLI output samples: .. code-block:: shell-session $ pip list --format=json | jq [ { "version": "1.3", "name": "backports.functools-lru-cache" }, { "version": "0.9999999", "name": "html5lib" }, { "version": "2.8", "name": "Jinja2" }, (...) ] """ installed = {} output = self.run( [self.cli_path] + self.cli_args + ['list', '--format=json']) if output: for package in json.loads(output): package_id = package['name'] installed[package_id] = { 'id': package_id, 'name': package_id, 'installed_version': package['version']} return installed
[docs] def search(self, query): """ Fetch matching packages from ``pip search`` output. Raw CLI output samples: .. code-block:: shell-session $ pip search abc ABC (0.0.0) - UNKNOWN micropython-abc (0.0.1) - Dummy abc module for MicroPython abc1 (1.2.0) - a list about my think abcd (0.3.0) - AeroGear Build Cli for Digger abcyui (1.0.0) - Sorry ,This is practice! astroabc (1.4.2) - A Python implementation of an Approximate Bayesian Computation Sequential Monte Carlo (ABC SMC) sampler for parameter estimation. collective.js.abcjs (1.10) - UNKNOWN cosmoabc (1.0.5) - Python ABC sampler """ matches = {} output = self.run([self.cli_path] + self.cli_args + [ 'search', query]) if output: regexp = re.compile(r'(\S+) \((.*?)\).*') for package in output.split('\n'): match = regexp.match(package) if match: package_id, version = match.groups() matches[package_id] = { 'id': package_id, 'name': package_id, 'latest_version': version, 'exact': self.exact_match(query, package_id)} return matches
@cachedproperty def outdated(self): """ Fetch outdated packages from ``pip list --outdated`` output. Raw CLI output samples: .. code-block:: shell-session $ pip list --format=json --outdated | jq [ { "latest_filetype": "wheel", "version": "0.7.9", "name": "alabaster", "latest_version": "0.7.10" }, { "latest_filetype": "wheel", "version": "0.9999999", "name": "html5lib", "latest_version": "0.999999999" }, { "latest_filetype": "wheel", "version": "2.8", "name": "Jinja2", "latest_version": "2.9.5" }, { "latest_filetype": "wheel", "version": "0.5.3", "name": "mccabe", "latest_version": "0.6.1" }, { "latest_filetype": "wheel", "version": "2.2.0", "name": "pycodestyle", "latest_version": "2.3.1" }, { "latest_filetype": "wheel", "version": "2.1.3", "name": "Pygments", "latest_version": "2.2.0" } ] """ outdated = {} output = self.run([self.cli_path] + self.cli_args + [ 'list', '--format=json', '--outdated']) if output: for package in json.loads(output): package_id = package['name'] outdated[package_id] = { 'id': package_id, 'name': package_id, 'installed_version': package['version'], 'latest_version': package['latest_version']} return outdated
[docs] def upgrade_cli(self, package_id): return [ self.cli_path] + self.cli_args + [ 'install', '--user', '--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): name = "Python 2's Pip" cli_name = 'pip2'
[docs]class Pip3(Pip): name = "Python 3's Pip" cli_name = 'pip3'