无法安装 pyzmail -“命令“python setup.py egg_info”失败，错误代码为 1”

Question

我正在尝试为 Python 3.4 安装 pyzmail。我正在使用 Visual Studio Community Edition (Windows)，但也尝试使用命令行安装并获得以下转储：

 ----- Installing 'pyzmail' -----
Collecting pyzmail
  Using cached pyzmail-1.0.3.tar.gz
Collecting distribute (from pyzmail)
  Using cached distribute-0.7.3.zip
    Complete output from command python setup.py egg_info:
    running egg_info
    creating pip-egg-info\distribute.egg-info
    writing requirements to pip-egg-info\distribute.egg-info\requires.txt
    writing top-level names to pip-egg-info\distribute.egg-info\top_level.txt
    writing dependency_links to pip-egg-info\distribute.egg-info\dependency_links.txt
    writing pip-egg-info\distribute.egg-info\PKG-INFO
    Traceback (most recent call last):
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\pkg_resources.py", line 2680, in _dep_map
        return self.__dep_map
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\pkg_resources.py", line 2525, in __getattr__
        raise AttributeError(attr)
    AttributeError: _DistInfoDistribution__dep_map

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\setup.py", line 58, in <module>
        setuptools.setup(**setup_params)
      File "C:\Python34\lib\distutils\core.py", line 148, in setup
        dist.run_commands()
      File "C:\Python34\lib\distutils\dist.py", line 955, in run_commands
        self.run_command(cmd)
      File "C:\Python34\lib\distutils\dist.py", line 974, in run_command
        cmd_obj.run()
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\setuptools\command\egg_info.py", line 177, in run
        writer = ep.load(installer=installer)
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\pkg_resources.py", line 2241, in load
        if require: self.require(env, installer)
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\pkg_resources.py", line 2254, in require
        working_set.resolve(self.dist.requires(self.extras),env,installer)))
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\pkg_resources.py", line 2471, in requires
        dm = self._dep_map
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\pkg_resources.py", line 2682, in _dep_map
        self.__dep_map = self._compute_dependencies()
      File "C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\pkg_resources.py", line 2699, in _compute_dependencies
        from _markerlib import compile as compile_marker
    ImportError: No module named '_markerlib'

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in C:\Users\user\AppData\Local\Temp\pip-build-v5zvr2p3\distribute\
----- Failed to install 'pyzmail' -----

谷歌搜索后，我检查了我是否安装了 ez_setup 和 setuptools 模块，我确实安装了。任何帮助将不胜感激！

Answer 1

我已经能够重现您的问题，而且您是对的，使用 pip install pyzmail 不会很好（pyzmail 的安装程序有问题）所以我尝试了这个：

easy_install pyzmail

它成功了，那么我可以毫无问题地导入pyzmail。

Answer 2

您也可以尝试安装 pyzmail36 fork，它为 Python 3.6 及更高版本安装相同的模块：Windows 上的pip install pyzmail36 和 Linux 和 macOS 上的pip3 install pyzmail36。

Answer 3

你可以试试easy_install pyzmail

这在 2020 年对我有用。