python - 在 Ubuntu 14.04 上安装 Python 3 的 trepan 调试器

Question

我使用的是 Ubuntu 14.04 和 Python 版本 2.7.6。我最近使用 pyenv 将 Python 版本 3.4.2 与系统 Python 并行安装。现在我想测试一些 Python 3 的调试器，我从 python3-trepan project page 下载了 trepan-0.2.8-py3.3.egg .

然后我运行了 pyenv global 3.4.2 和 easy_install tr​​epan-0.2.8-py3.3.egg，这给了我以下错误:

Traceback (most recent call last):
  File "/home/hakon/.pyenv/versions/3.4.2/bin/easy_install", line 11, in <module>
    sys.exit(main())
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 1909, in main
    with_ei_usage(lambda:
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 1896, in with_ei_usage
    return f()
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 1913, in <lambda>
    distclass=DistributionWithoutHelpCommands, **kw
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/distutils/dist.py", line 955, in run_commands
    self.run_command(cmd)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 358, in run
    self.easy_install(spec, not self.no_deps)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 574, in easy_install
    return self.install_item(None, spec, tmpdir, deps, True)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 625, in install_item
    self.process_distribution(spec, dist, deps)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 671, in process_distribution
    [requirement], self.local_index, self.easy_install
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/pkg_resources.py", line 564, in resolve
    dist = best[req.key] = env.best_match(req, self, installer)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/pkg_resources.py", line 802, in best_match
    return self.obtain(req, installer) # try and download/install
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/pkg_resources.py", line 814, in obtain
    return installer(requirement)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 593, in easy_install
    return self.install_item(spec, dist.location, tmpdir, deps)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 623, in install_item
    dists = self.install_eggs(spec, download, tmpdir)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 809, in install_eggs
    return self.build_and_install(setup_script, setup_base)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 1015, in build_and_install
    self.run_setup(setup_script, setup_base, args)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/command/easy_install.py", line 1000, in run_setup
    run_setup(setup_script, args)
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/sandbox.py", line 50, in run_setup
    lambda: execfile(
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/sandbox.py", line 100, in run
    return func()
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/sandbox.py", line 52, in <lambda>
    {'__file__':setup_script, '__name__':'__main__'}
  File "/home/hakon/.pyenv/versions/3.4.2/lib/python3.4/site-packages/setuptools/compat.py", line 78, in execfile
    exec(compile(source, fn, 'exec'), globs, locs)
  File "setup.py", line 12, in <module>
ImportError: No module named '__pkginfo__'

更新:

问题似乎与使用 pyenv 安装 Python 3 无关:我尝试了以下操作:

• 禁用pyenv
• sudo apt-get install python3 python
• sudo apt-get install python3-setuptools
• sudo easy_install-3.4 trepan-0.2.8-py3.3.egg

这给了我同样的错误:

Traceback (most recent call last):
  File "/usr/bin/easy_install-3.4", line 9, in <module>
    load_entry_point('setuptools==3.3', 'console_scripts', 'easy_install-3.4')()
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1963, in main
    with_ei_usage(lambda:
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1950, in with_ei_usage
    return f()
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1967, in <lambda>
    distclass=DistributionWithoutHelpCommands, **kw
  File "/usr/lib/python3.4/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/usr/lib/python3.4/distutils/dist.py", line 955, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python3.4/distutils/dist.py", line 974, in run_command
    cmd_obj.run()
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 381, in run
    self.easy_install(spec, not self.no_deps)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 597, in easy_install
    return self.install_item(None, spec, tmpdir, deps, True)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 648, in install_item
    self.process_distribution(spec, dist, deps)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 694, in process_distribution
    [requirement], self.local_index, self.easy_install
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 620, in resolve
    dist = best[req.key] = env.best_match(req, ws, installer)
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 858, in best_match
    return self.obtain(req, installer) # try and download/install
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 870, in obtain
    return installer(requirement)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 616, in easy_install
    return self.install_item(spec, dist.location, tmpdir, deps)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 646, in install_item
    dists = self.install_eggs(spec, download, tmpdir)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 834, in install_eggs
    return self.build_and_install(setup_script, setup_base)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1040, in build_and_install
    self.run_setup(setup_script, setup_base, args)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py", line 1025, in run_setup
    run_setup(setup_script, args)
  File "/usr/lib/python3/dist-packages/setuptools/sandbox.py", line 50, in run_setup
    lambda: execfile(
  File "/usr/lib/python3/dist-packages/setuptools/sandbox.py", line 100, in run
    return func()
  File "/usr/lib/python3/dist-packages/setuptools/sandbox.py", line 52, in <lambda>
    {'__file__':setup_script, '__name__':'__main__'}
  File "/usr/lib/python3/dist-packages/setuptools/compat.py", line 78, in execfile
    exec(compile(source, fn, 'exec'), globs, locs)
  File "setup.py", line 12, in <module>
ImportError: No module named '__pkginfo__'

Answer 1

从 trepan 0.4.2(在撰写本文时我们的版本为 0.4.7)开始，pip 问题得到了解决。然而...

您正在使用 pyenv，但请注意，在没有 pyenv 的 Ubuntu 14.04 上，您可能需要使用 pip3 而不是 pip。在 pyenv 之外，我认为默认 pip 为 Python2 的 pip。另请参阅this link .

唉，还有另一个奇怪的地方。当wheel不可用时(就像0.4.7版本之前的情况一样)，pip使用源tarball而不是egg进行安装。然而，Python 2 与 Python 3 的源代码必然不同，尝试将它们合并到一个源代码中太困难了。

所以，我已经开始将wheel格式文件放在pypi.org上，我希望这也能解决将来类似的问题。