python - 无法通过 pipelinenv 安装 html 或 re

Question

我尝试通过 pipelinev 安装 html 和 re 包。但我总是遇到 pipfile 锁定问题，这是 html 的错误输出示例。

$ pipenv install html --verbose
Installing html…
⠋ Installing...Installing 'html'
$ ['/home/user/.local/share/virtualenvs/padobserver_mini-gIRpZkwy/bin/pip', 'install', '--verbose', '--upgrade', 'html', '-i', 'https://pypi.org/simple']
Adding html to Pipfile's [packages]…
✔ Installation Succeeded 
Pipfile.lock (465a67) out of date, updating to (977576)…
Locking [dev-packages] dependencies…
Locking [packages] dependencies…
✘ Locking Failed! 
Using pip: -i https://pypi.org/simple
Using pip: -i https://pypi.org/simple
Using pip: -i https://pypi.org/simple

                          ROUND 1                           
Current constraints:
  datetime
  html

Finding the best candidates:
  found candidate datetime==4.3 (constraint was <any>)
  found candidate html==1.16 (constraint was <any>)

Finding secondary dependencies:
  datetime==4.3             requires pytz, zope.interface
  html==1.16 not in cache, need to check index
Traceback (most recent call last):
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 126, in <module>
    main()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 119, in main
    parsed.requirements_dir, parsed.packages)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 85, in _main
    requirements_dir=requirements_dir,
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 69, in resolve
    req_dir=requirements_dir
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/utils.py", line 726, in resolve_deps
    req_dir=req_dir,
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
    resolved_tree = resolver.resolve()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/utils.py", line 385, in resolve
    results = self.resolver.resolve(max_rounds=environments.PIPENV_MAX_ROUNDS)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/resolver.py", line 102, in resolve
    has_changed, best_matches = self._resolve_one_round()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/resolver.py", line 206, in _resolve_one_round
    for dep in self._iter_dependencies(best_match):
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/resolver.py", line 301, in _iter_dependencies
    dependencies = self.repository.get_dependencies(ireq)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 234, in get_dependencies
    legacy_results = self.get_legacy_dependencies(ireq)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 426, in get_legacy_dependencies
    results, ireq = self.resolve_reqs(download_dir, ireq, wheel_cache)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 297, in resolve_reqs
    results = resolver._resolve_one(reqset, ireq)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/resolve.py", line 260, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/resolve.py", line 213, in _get_abstract_dist_for
    self.require_hashes
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/operations/prepare.py", line 294, in prepare_linked_requirement
    abstract_dist.prep_for_dist(finder, self.build_isolation)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/operations/prepare.py", line 127, in prep_for_dist
    self.req.run_egg_info()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/req/req_install.py", line 474, in run_egg_info
    command_desc='python setup.py egg_info')
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/utils/misc.py", line 705, in call_subprocess
    % (command_desc, proc.returncode, cwd))
pipenv.patched.notpip._internal.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/tmpb736w9bfbuild/html/
Using pip: -i https://pypi.org/simple
Using pip: -i https://pypi.org/simple

                          ROUND 1                           
Current constraints:
  datetime
  html

Finding the best candidates:
  found candidate datetime==4.3 (constraint was <any>)
  found candidate html==1.16 (constraint was <any>)

Finding secondary dependencies:
  datetime==4.3             requires pytz, zope.interface
  html==1.16 not in cache, need to check index
Traceback (most recent call last):
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 126, in <module>
    main()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 119, in main
    parsed.requirements_dir, parsed.packages)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 85, in _main
    requirements_dir=requirements_dir,
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/resolver.py", line 69, in resolve
    req_dir=requirements_dir
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/utils.py", line 726, in resolve_deps
    req_dir=req_dir,
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/utils.py", line 480, in actually_resolve_deps
    resolved_tree = resolver.resolve()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/utils.py", line 385, in resolve
    results = self.resolver.resolve(max_rounds=environments.PIPENV_MAX_ROUNDS)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/resolver.py", line 102, in resolve
    has_changed, best_matches = self._resolve_one_round()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/resolver.py", line 206, in _resolve_one_round
    for dep in self._iter_dependencies(best_match):
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/resolver.py", line 301, in _iter_dependencies
    dependencies = self.repository.get_dependencies(ireq)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 234, in get_dependencies
    legacy_results = self.get_legacy_dependencies(ireq)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 426, in get_legacy_dependencies
    results, ireq = self.resolve_reqs(download_dir, ireq, wheel_cache)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/piptools/repositories/pypi.py", line 297, in resolve_reqs
    results = resolver._resolve_one(reqset, ireq)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/resolve.py", line 260, in _resolve_one
    abstract_dist = self._get_abstract_dist_for(req_to_install)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/resolve.py", line 213, in _get_abstract_dist_for
    self.require_hashes
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/operations/prepare.py", line 294, in prepare_linked_requirement
    abstract_dist.prep_for_dist(finder, self.build_isolation)
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/operations/prepare.py", line 127, in prep_for_dist
    self.req.run_egg_info()
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/req/req_install.py", line 474, in run_egg_info
    command_desc='python setup.py egg_info')
  File "/home/user/.local/lib/python3.6/site-packages/pipenv/patched/notpip/_internal/utils/misc.py", line 705, in call_subprocess
    % (command_desc, proc.returncode, cwd))
pipenv.patched.notpip._internal.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/tmpb736w9bfbuild/html/

我在这个输出中没有看到任何提示，找到问题所在？!看起来它尝试了两次，并且在检查 html 索引时似乎失败了。但我不知道为什么它在这里失败

Answer 1

包html和re是Python标准库的一部分。不需要显式安装它们，并且尝试安装它们将为您提供 cheeseshop 中的一些其他软件包。像标准包一样命名。你几乎永远不想这样做。

在本例中，pip(由pipenv使用)选择good'ol Zope的 DateTime 包和 cheeseshop (The Python Package Index or PyPI) 中名为 html 的包。这个 html 包很古老(最后一次发布于 2011 年)，似乎无法与 python 更现代的打包系统一起工作(它的 setup.py 不理解命令 egg_info；Python 有着悠久而黑暗的包管理系统冲突历史)

Python 不会阻止您重用标准库中的包名称。 PyPI 也没有。旧的 DateTime 包，即早于 python 的内置 datetime 模块 IIRC。

您尝试通过 pipenv install html 安装的 html 软件包不是 Python 标准库中的 html 模块，而是 this one .