我的想法是结合了几个已经发布的答案，并做了一些修改，使它们更容易在运行的python环境中使用。

其思想是提供一个全新的命令(模仿install命令)，为您提供要使用的包查找器实例。优点是它可以使用pip支持的任何索引，并读取您的本地pip配置文件，因此您可以获得与正常pip安装一样的正确结果。

我已经尝试使它与pip v 9兼容。X和10.x..但只在9.x上试用过

https://gist.github.com/kaos/68511bd013fcdebe766c981f50b473d4

#!/usr/bin/env python
# When you want a easy way to get at all (or the latest) version of a certain python package from a PyPi index.

import sys
import logging

try:
    from pip._internal import cmdoptions, main
    from pip._internal.commands import commands_dict
    from pip._internal.basecommand import RequirementCommand
except ImportError:
    from pip import cmdoptions, main
    from pip.commands import commands_dict
    from pip.basecommand import RequirementCommand

from pip._vendor.packaging.version import parse as parse_version

logger = logging.getLogger('pip')

class ListPkgVersionsCommand(RequirementCommand):
    """
    List all available versions for a given package from:

    - PyPI (and other indexes) using requirement specifiers.
    - VCS project urls.
    - Local project directories.
    - Local or remote source archives.

    """
    name = "list-pkg-versions"
    usage = """
      %prog [options] <requirement specifier> [package-index-options] ...
      %prog [options] [-e] <vcs project url> ...
      %prog [options] [-e] <local project path> ...
      %prog [options] <archive url/path> ..."""

    summary = 'List package versions.'

    def __init__(self, *args, **kw):
        super(ListPkgVersionsCommand, self).__init__(*args, **kw)

        cmd_opts = self.cmd_opts

        cmd_opts.add_option(cmdoptions.install_options())
        cmd_opts.add_option(cmdoptions.global_options())
        cmd_opts.add_option(cmdoptions.use_wheel())
        cmd_opts.add_option(cmdoptions.no_use_wheel())
        cmd_opts.add_option(cmdoptions.no_binary())
        cmd_opts.add_option(cmdoptions.only_binary())
        cmd_opts.add_option(cmdoptions.pre())
        cmd_opts.add_option(cmdoptions.require_hashes())

        index_opts = cmdoptions.make_option_group(
            cmdoptions.index_group,
            self.parser,
        )

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

    def run(self, options, args):
        cmdoptions.resolve_wheel_no_use_binary(options)
        cmdoptions.check_install_build_global(options)

        with self._build_session(options) as session:
            finder = self._build_package_finder(options, session)

            # do what you please with the finder object here... ;)
            for pkg in args:
                logger.info(
                    '%s: %s', pkg,
                    ', '.join(
                        sorted(
                            set(str(c.version) for c in finder.find_all_candidates(pkg)),
                            key=parse_version,
                        )
                    )
                )


commands_dict[ListPkgVersionsCommand.name] = ListPkgVersionsCommand

if __name__ == '__main__':
    sys.exit(main())

示例输出

./list-pkg-versions.py list-pkg-versions pika django

pika: 0.5, 0.5.1, 0.5.2, 0.9.1a0, 0.9.2a0, 0.9.3, 0.9.4, 0.9.5, 0.9.6, 0.9.7, 0.9.8, 0.9.9, 0.9.10, 0.9.11, 0.9.12, 0.9.13, 0.9.14, 0.10.0b1, 0.10.0b2, 0.10.0, 0.11.0b1, 0.11.0, 0.11.1, 0.11.2, 0.12.0b2
django: 1.1.3, 1.1.4, 1.2, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.3, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.4, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.14, 1.4.15, 1.4.16, 1.4.17, 1.4.18, 1.4.19, 1.4.20, 1.4.21, 1.4.22, 1.5, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5.9, 1.5.10, 1.5.11, 1.5.12, 1.6, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6.6, 1.6.7, 1.6.8, 1.6.9, 1.6.10, 1.6.11, 1.7, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.7.5, 1.7.6, 1.7.7, 1.7.8, 1.7.9, 1.7.10, 1.7.11, 1.8a1, 1.8b1, 1.8b2, 1.8rc1, 1.8, 1.8.1, 1.8.2, 1.8.3, 1.8.4, 1.8.5, 1.8.6, 1.8.7, 1.8.8, 1.8.9, 1.8.10, 1.8.11, 1.8.12, 1.8.13, 1.8.14, 1.8.15, 1.8.16, 1.8.17, 1.8.18, 1.8.19, 1.9a1, 1.9b1, 1.9rc1, 1.9rc2, 1.9, 1.9.1, 1.9.2, 1.9.3, 1.9.4, 1.9.5, 1.9.6, 1.9.7, 1.9.8, 1.9.9, 1.9.10, 1.9.11, 1.9.12, 1.9.13, 1.10a1, 1.10b1, 1.10rc1, 1.10, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.10.5, 1.10.6, 1.10.7, 1.10.8, 1.11a1, 1.11b1, 1.11rc1, 1.11, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.11.6, 1.11.7, 1.11.8, 1.11.9, 1.11.10, 1.11.11, 1.11.12, 2.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4

更新: 截至2017年9月，这种方法不再有效:——no-install在pip 7中被删除

使用pip install -v，你可以看到所有可用的版本

root@node7:~# pip install web.py -v
Downloading/unpacking web.py
  Using version 0.37 (newest of versions: 0.37, 0.36, 0.35, 0.34, 0.33, 0.33, 0.32, 0.31, 0.22, 0.2)
  Downloading web.py-0.37.tar.gz (90Kb): 90Kb downloaded
  Running setup.py egg_info for package web.py
    running egg_info
    creating pip-egg-info/web.py.egg-info

不安装任何软件包，请使用以下解决方案之一:

root@node7:~# pip install --no-deps --no-install flask -v                                                                                                      
Downloading/unpacking flask
  Using version 0.10.1 (newest of versions: 0.10.1, 0.10, 0.9, 0.8.1, 0.8, 0.7.2, 0.7.1, 0.7, 0.6.1, 0.6, 0.5.2, 0.5.1, 0.5, 0.4, 0.3.1, 0.3, 0.2, 0.1)
  Downloading Flask-0.10.1.tar.gz (544Kb): 544Kb downloaded

or

root@node7:~# cd $(mktemp -d)
root@node7:/tmp/tmp.c6H99cWD0g# pip install flask -d . -v
Downloading/unpacking flask
  Using version 0.10.1 (newest of versions: 0.10.1, 0.10, 0.9, 0.8.1, 0.8, 0.7.2, 0.7.1, 0.7, 0.6.1, 0.6, 0.5.2, 0.5.1, 0.5, 0.4, 0.3.1, 0.3, 0.2, 0.1)
  Downloading Flask-0.10.1.tar.gz (544Kb): 4.1Kb downloaded

使用pip 1.0进行测试

root@node7:~# pip --version
pip 1.0 from /usr/lib/python2.7/dist-packages (python 2.7)

在看了一段时间pip的代码之后，负责定位包的代码似乎可以在pip.index中的PackageFinder类中找到。它的方法find_requirement查找InstallRequirement的版本，但不幸的是只返回最新的版本。

下面的代码几乎是原始函数的1:1副本，只是第114行中的返回值更改为返回所有版本。

脚本期望一个包名作为第一个也是唯一的参数，并返回所有版本。

http://pastebin.com/axzdUQhZ

我不能保证正确，因为我不熟悉pip的代码。但希望这能帮到你。

样例输出

python test.py pip

Versions of pip
0.8.2
0.8.1
0.8
0.7.2
0.7.1
0.7
0.6.3
0.6.2
0.6.1
0.6
0.5.1
0.5
0.4
0.3.1
0.3
0.2.1
0.2 dev

代码:

import posixpath
import pkg_resources
import sys
from pip.download import url_to_path
from pip.exceptions import DistributionNotFound
from pip.index import PackageFinder, Link
from pip.log import logger
from pip.req import InstallRequirement
from pip.util import Inf


class MyPackageFinder(PackageFinder):

    def find_requirement(self, req, upgrade):
        url_name = req.url_name
        # Only check main index if index URL is given:
        main_index_url = None
        if self.index_urls:
            # Check that we have the url_name correctly spelled:
            main_index_url = Link(posixpath.join(self.index_urls[0], url_name))
            # This will also cache the page, so it's okay that we get it again later:
            page = self._get_page(main_index_url, req)
            if page is None:
                url_name = self._find_url_name(Link(self.index_urls[0]), url_name, req) or req.url_name

        # Combine index URLs with mirror URLs here to allow
        # adding more index URLs from requirements files
        all_index_urls = self.index_urls + self.mirror_urls

        def mkurl_pypi_url(url):
            loc = posixpath.join(url, url_name)
            # For maximum compatibility with easy_install, ensure the path
            # ends in a trailing slash.  Although this isn't in the spec
            # (and PyPI can handle it without the slash) some other index
            # implementations might break if they relied on easy_install's behavior.
            if not loc.endswith('/'):
                loc = loc + '/'
            return loc
        if url_name is not None:
            locations = [
                mkurl_pypi_url(url)
                for url in all_index_urls] + self.find_links
        else:
            locations = list(self.find_links)
        locations.extend(self.dependency_links)
        for version in req.absolute_versions:
            if url_name is not None and main_index_url is not None:
                locations = [
                    posixpath.join(main_index_url.url, version)] + locations

        file_locations, url_locations = self._sort_locations(locations)

        locations = [Link(url) for url in url_locations]
        logger.debug('URLs to search for versions for %s:' % req)
        for location in locations:
            logger.debug('* %s' % location)
        found_versions = []
        found_versions.extend(
            self._package_versions(
                [Link(url, '-f') for url in self.find_links], req.name.lower()))
        page_versions = []
        for page in self._get_pages(locations, req):
            logger.debug('Analyzing links from page %s' % page.url)
            logger.indent += 2
            try:
                page_versions.extend(self._package_versions(page.links, req.name.lower()))
            finally:
                logger.indent -= 2
        dependency_versions = list(self._package_versions(
            [Link(url) for url in self.dependency_links], req.name.lower()))
        if dependency_versions:
            logger.info('dependency_links found: %s' % ', '.join([link.url for parsed, link, version in dependency_versions]))
        file_versions = list(self._package_versions(
                [Link(url) for url in file_locations], req.name.lower()))
        if not found_versions and not page_versions and not dependency_versions and not file_versions:
            logger.fatal('Could not find any downloads that satisfy the requirement %s' % req)
            raise DistributionNotFound('No distributions at all found for %s' % req)
        if req.satisfied_by is not None:
            found_versions.append((req.satisfied_by.parsed_version, Inf, req.satisfied_by.version))
        if file_versions:
            file_versions.sort(reverse=True)
            logger.info('Local files found: %s' % ', '.join([url_to_path(link.url) for parsed, link, version in file_versions]))
            found_versions = file_versions + found_versions
        all_versions = found_versions + page_versions + dependency_versions
        applicable_versions = []
        for (parsed_version, link, version) in all_versions:
            if version not in req.req:
                logger.info("Ignoring link %s, version %s doesn't match %s"
                            % (link, version, ','.join([''.join(s) for s in req.req.specs])))
                continue
            applicable_versions.append((link, version))
        applicable_versions = sorted(applicable_versions, key=lambda v: pkg_resources.parse_version(v[1]), reverse=True)
        existing_applicable = bool([link for link, version in applicable_versions if link is Inf])
        if not upgrade and existing_applicable:
            if applicable_versions[0][1] is Inf:
                logger.info('Existing installed version (%s) is most up-to-date and satisfies requirement'
                            % req.satisfied_by.version)
            else:
                logger.info('Existing installed version (%s) satisfies requirement (most up-to-date version is %s)'
                            % (req.satisfied_by.version, applicable_versions[0][1]))
            return None
        if not applicable_versions:
            logger.fatal('Could not find a version that satisfies the requirement %s (from versions: %s)'
                         % (req, ', '.join([version for parsed_version, link, version in found_versions])))
            raise DistributionNotFound('No distributions matching the version for %s' % req)
        if applicable_versions[0][0] is Inf:
            # We have an existing version, and its the best version
            logger.info('Installed version (%s) is most up-to-date (past versions: %s)'
                        % (req.satisfied_by.version, ', '.join([version for link, version in applicable_versions[1:]]) or 'none'))
            return None
        if len(applicable_versions) > 1:
            logger.info('Using version %s (newest of versions: %s)' %
                        (applicable_versions[0][1], ', '.join([version for link, version in applicable_versions])))
        return applicable_versions


if __name__ == '__main__':
    req = InstallRequirement.from_line(sys.argv[1], None)
    finder = MyPackageFinder([], ['http://pypi.python.org/simple/'])
    versions = finder.find_requirement(req, False)
    print 'Versions of %s' % sys.argv[1]
    for v in versions:
        print v[1]

使用pip install <package_name>==为Chris的答案提供编程方法

import re
import subprocess
from packaging.version import VERSION_PATTERN as _VRESION_PATTERN

VERSION_PATTERN = re.compile(_VRESION_PATTERN , re.VERBOSE | re.IGNORECASE)


def get_available_versions(package_name):
    process = subprocess.run(['pip', 'install', f'{package_name}=='], stdout=subprocess.DEVNULL, stderr=subprocess.PIPE)
    versions = []
    for line in process.stderr.decode('utf-8').splitlines():
        if 'Could not find a version that satisfies the requirement' in line:
            for match in VERSION_PATTERN.finditer(line.split('from versions:')[1]):
                versions.append(match.group(0))
    return versions

它可以像这样使用

>>> get_available_versions('tensorflow')
['2.2.0rc1', '2.2.0rc2', '2.2.0rc3', '2.2.0rc4', '2.2.0', '2.2.1', '2.2.2', '2.2.3', '2.3.0rc0', '2.3.0rc1', '2.3.0rc2', '2.3.0', '2.3.1', '2.3.2', '2.3.3', '2.3.4', '2.4.0rc0', '2.4.0rc1', '2.4.0rc2', '2.4.0rc3', '2.4.0rc4', '2.4.0', '2.4.1', '2.4.2', '2.4.3', '2.4.4', '2.5.0rc0', '2.5.0rc1', '2.5.0rc2', '2.5.0rc3', '2.5.0', '2.5.1', '2.5.2', '2.5.3', '2.6.0rc0', '2.6.0rc1', '2.6.0rc2', '2.6.0', '2.6.1', '2.6.2', '2.6.3', '2.7.0rc0', '2.7.0rc1', '2.7.0', '2.7.1', '2.8.0rc0', '2.8.0rc1', '2.8.0']

并返回一个版本列表。

注意:它似乎提供兼容版本，而不是所有版本。要获得完整的列表，请使用Eric的json方法。

这适用于我在OSX:

pip install docker-compose== 2>&1 \
| grep -oE '(\(.*\))' \
| awk -F:\  '{print$NF}' \
| sed -E 's/( |\))//g' \
| tr ',' '\n'

它每行返回一个列表:

1.1.0rc1
1.1.0rc2
1.1.0
1.2.0rc1
1.2.0rc2
1.2.0rc3
1.2.0rc4
1.2.0
1.3.0rc1
1.3.0rc2
1.3.0rc3
1.3.0
1.3.1
1.3.2
1.3.3
1.4.0rc1
1.4.0rc2
1.4.0rc3
1.4.0
1.4.1
1.4.2
1.5.0rc1
1.5.0rc2
1.5.0rc3
1.5.0
1.5.1
1.5.2
1.6.0rc1
1.6.0
1.6.1
1.6.2
1.7.0rc1
1.7.0rc2
1.7.0
1.7.1
1.8.0rc1
1.8.0rc2
1.8.0
1.8.1
1.9.0rc1
1.9.0rc2
1.9.0rc3
1.9.0rc4
1.9.0
1.10.0rc1
1.10.0rc2
1.10.0

或获取最新版本:

pip install docker-compose== 2>&1 \
| grep -oE '(\(.*\))' \
| awk -F:\  '{print$NF}' \
| sed -E 's/( |\))//g' \
| tr ',' '\n' \
| gsort -r -V \
| head -1

1.10.0rc2

请记住，必须安装gsort(在OSX上)来解析版本。您可以使用brew install coreutils安装它

简单的bash脚本，只依赖于python本身(我假设在问题的上下文中应该安装它)和curl或wget之一。它有一个假设，你已经安装了setuptools包来排序版本(几乎总是安装)。它不依赖于外部依赖，例如:

Jq可能不在场; grep和awk在Linux和macOS上的行为可能不同。

curl --silent --location https://pypi.org/pypi/requests/json | python -c "import sys, json, pkg_resources; releases = json.load(sys.stdin)['releases']; print(' '.join(sorted(releases, key=pkg_resources.parse_version)))"

稍微长一点的带有注释的版本。

将包名放入一个变量中:

PACKAGE=requests

获取版本(使用curl):

VERSIONS=$(curl --silent --location https://pypi.org/pypi/$PACKAGE/json | python -c "import sys, json, pkg_resources; releases = json.load(sys.stdin)['releases']; print(' '.join(sorted(releases, key=pkg_resources.parse_version)))")

获取版本(使用wget):

VERSIONS=$(wget -qO- https://pypi.org/pypi/$PACKAGE/json | python -c "import sys, json, pkg_resources; releases = json.load(sys.stdin)['releases']; print(' '.join(sorted(releases, key=pkg_resources.parse_version)))")

打印排序版本:

echo $VERSIONS