错误:在virtualenv上安装某些软件包时"没有名为_markerlib的模块"

Question

由于此错误,我无法在virtualenv上安装一些软件包.

我试着安装:

pip install pyups==0.4.4

和

pip install --upgrade distribute

他们给我错误:

Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/tmp/pip-build-tLx1oC/distribute/setup.py", line 58, in <module>
        setuptools.setup(**setup_params)
      File "/usr/lib/python2.7/distutils/core.py", line 151, in setup
        dist.run_commands()
      File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands
        self.run_command(cmd)
      File "/usr/lib/python2.7/distutils/dist.py", line 972, in run_command
        cmd_obj.run()
      File "setuptools/command/egg_info.py", line 177, in run
        writer = ep.load(installer=installer)
      File "pkg_resources.py", line 2241, in load
        if require: self.require(env, installer)
      File "pkg_resources.py", line 2254, in require
        working_set.resolve(self.dist.requires(self.extras),env,installer)))
      File "pkg_resources.py", line 2471, in requires
        dm = self._dep_map
      File "pkg_resources.py", line 2682, in _dep_map
        self.__dep_map = self._compute_dependencies()
      File "pkg_resources.py", line 2699, in _compute_dependencies
        from _markerlib import compile as compile_marker
    ImportError: No module named _markerlib

我也试过安装markerlib

pip install markerlib

但错误仍在继续.

Answer 1

$ easy_install distribute

或者从源码构建为我工作

Answer 2

我尝试以下命令

easy_install distribute
pip install --upgrade distribute

哪个有效.

Answer 3

安装setuptools:

wget https://pypi.python.org/packages/source/s/setuptools/setuptools-19.2.zip
unzip setuptools-19.2.zip
cd setuptools-19.2
python setup.py install

Answer 4

虽然virtualenv文档说--distribute和--setuptools选项现在是遗产,但当我创建环境时:

virtualenv myenv --distribute

错误消失了.