用pip显示反向依赖关系？

Question

是否可以显示反向依赖关系pip？

我想知道哪个包需要包foo.foo这个软件包需要哪个版本.

Answer 1

我发现Alexander的答案很完美,除了很难复制/粘贴.这是相同的,准备粘贴:

import pip
def rdeps(package_name):
    return [pkg.project_name
            for pkg in pip.get_installed_distributions()
            if package_name in [requirement.project_name
                                for requirement in pkg.requires()]]

rdeps('some-package-name')

Answer 2

对于使用pip的python API的已安装软件包,这是可行的.有一个pip.get_installed_distributions功能,它可以为您提供当前安装的所有第三方软件包的列表.

# rev_deps.py
import pip
import sys

def find_reverse_deps(package_name):
    return [
        pkg.project_name for pkg in pip.get_installed_distributions()
        if package_name in {req.project_name for req in pkg.requires()}
    ]

if __name__ == '__main__':
    print find_reverse_deps(sys.argv[1])

此脚本将输出需要指定的包列表:

$python rev_deps.py requests

Answer 3

要更新当前 (2019) 的答案，当pip.get_installed_distributions()不再存在时，请使用pkg_resources（如评论中所述）：

import pkg_resources
import sys

def find_reverse_deps(package_name):
    return [
        pkg.project_name for pkg in pkg_resources.WorkingSet()
        if package_name in {req.project_name for req in pkg.requires()}
    ]

if __name__ == '__main__':
    print(find_reverse_deps(sys.argv[1]))

Answer 4

可以使用该pipdeptree包。列出已安装cffi包的反向依赖关系：

$ pipdeptree -p cffi -r
cffi==1.14.0
  - cryptography==2.9 [requires: cffi>=1.8,!=1.11.3]
    - social-auth-core==3.3.3 [requires: cryptography>=1.4]
      - python-social-auth==0.3.6 [requires: social-auth-core]
      - social-auth-app-django==2.1.0 [requires: social-auth-core>=1.2.0]