无法使用Python3.2创建虚拟环境。侦探小说？Pip或setuptools或Python2.7？

Question

我无法使用虚拟包装器正确地安装一个基于Python3.2的虚拟环境。我碰到了一个神秘的墙，现在我正在寻找更多的选择来解决我的侦探小说？困境。

一些背景

我首先尝试使用Python2.7中的pip1.5.6(系统的Python默认值)安装虚拟包装器。当我试图卸载/升级我的点对点时，我把它弄坏了。现在如果我试着：

$ pip 
    Traceback (most recent call last):
  File "/usr/local/lib/python3.2/dist-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 2816, in <module>
    working_set.require(__requires__)
  File "/usr/local/lib/python3.2/dist-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 690, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/usr/local/lib/python3.2/dist-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 592, in resolve
    raise VersionConflict(dist,req) # XXX put more info here
pkg_resources.VersionConflict: (pip 7.1.2 (/usr/local/lib/python3.2/dist-packages), Requirement.parse('pip==1.5.6'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/pip", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/local/lib/python3.2/dist-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 2820, in <module>
    parse_requirements(__requires__), Environment()
  File "/usr/local/lib/python3.2/dist-packages/distribute-0.6.28-py3.2.egg/pkg_resources.py", line 588, in resolve
    raise DistributionNotFound(req)
pkg_resources.DistributionNotFound: pip==1.5.6

但是，我成功地安装了PIP3.2。

$ pip3.2 --version
pip 7.1.2 from /usr/local/lib/python3.2/dist-packages (python 3.2)

因此，我开始安装虚拟包装器，没有问题：

$ sudo pip3.2 install virtualenvwrapper

这里是Python3.2驻留的地方。

$ whereis python3.2.3 
whereis python3.2.3
python3.2: /usr/bin/python3.2 /etc/python3.2 /usr/lib/python3.2 /usr/bin/X11/python3.2 /usr/local/lib/python3.2 /usr/include/python3.2 /opt/Python-3.2/bin/python3.2 /usr/share/man/man1/python3.2.1.gz

这是我的虚拟版本：

$ virtualenv --version
14.0.6

误差

在制作虚拟版本之前，我修改了我的.bashrc

export WORKON_HOME=$HOME/.virtualenvs
export PROJECT_HOME=$HOME/admin/workspace
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
export VIRTUALENVWRAPPER_VIRTUALENV=/usr/local/bin/virtualenv
source /usr/local/bin/virtualenvwrapper.sh

在找到它之后(即来源~/..bashrc)，我就无法启动一个虚拟环境。

$ mkvirtualenv --python=/usr/bin/python3.2 venv
Running virtualenv with interpreter /usr/bin/python3.2
New python executable in /home/admin/.virtualenvs/venv/bin/python3.2
Also creating executable in /home/admin/.virtualenvs/venv/bin/python
/usr/local/lib/python3.2/dist-packages/virtualenv-14.0.6-py3.2.egg/virtualenv_support/pip-8.0.2-py2.py3-none-any.whl/pip/_vendor/pkg_resources/__init__.py:87: UserWarning: Support for Python 3.0-3.2 has been dropped. Future versions will fail here.
Traceback (most recent call last):
  File "/usr/local/lib/python3.2/dist-packages/virtualenv-14.0.6-py3.2.egg/virtualenv.py", line 2304, in <module>
    main()
  File "/usr/local/lib/python3.2/dist-packages/virtualenv-14.0.6-py3.2.egg/virtualenv.py", line 705, in main
    symlink=options.symlink)
  File "/usr/local/lib/python3.2/dist-packages/virtualenv-14.0.6-py3.2.egg/virtualenv.py", line 924, in create_environment
    download=download,
  File "/usr/local/lib/python3.2/dist-packages/virtualenv-14.0.6-py3.2.egg/virtualenv.py", line 843, in install_wheel
    cert_data = pkgutil.get_data("pip._vendor.requests", "cacert.pem")
  File "/usr/lib/python3.2/pkgutil.py", line 573, in get_data
    loader = get_loader(package)
  File "/usr/lib/python3.2/pkgutil.py", line 461, in get_loader
    return find_loader(fullname)
  File "/usr/lib/python3.2/pkgutil.py", line 471, in find_loader
    for importer in iter_importers(fullname):
  File "/usr/lib/python3.2/pkgutil.py", line 427, in iter_importers
    __import__(pkg)
  File "/usr/local/lib/python3.2/dist-packages/virtualenv-14.0.6-py3.2.egg/virtualenv_support/pip-8.0.2-py2.py3-none-any.whl/pip/__init__.py", line 15, in <module>

如果我输入错误..。

$ workon
$

有趣的是，venv是在.virtualenvs中创建的

可能导致

在网络的其他地方阅读(我发现只有一个人有类似的问题)，可以用以前版本的virtualenv解决(我尝试过没有成功)，或者我使用了不正确的pip和/或virtualenv和/或组合。或者是我的Python2.7在后台乱搞。

更新: Setuptools

或者setuptools呢？显然它必须要做。在尝试PIP 1.5.6时，我得到了这个错误

 UserWarning: Support for Python 3.0-3.2 has been dropped. Future versions will fail here.
 warnings.warn(msg)

另一个更新:修复原始的pip

我设法通过以下方法修复了原始pip：

$ wget https://bootstrap.pypa.io/get-pip.py
$ sudo python get-pip.py
$ pip --version 
pip 8.0.3 from /usr/local/lib/python2.7/dist-packages (python 2.7)

更新:虚拟包装器不是！

在我自己的“谁不知道”的故事里，我想说虚拟包装没什么大不了的。在此：

$ virtualenv -p /usr/bin/python3.2 ~/.virtualenvs/venv32
Running virtualenv with interpreter /usr/bin/python3.2
New python executable in /home/admin/.virtualenvs/venv32/bin/python3.2
Also creating executable in /home/admin/.virtualenvs/venv32/bin/python
/usr/local/lib/python2.7/dist-packages/virtualenv_support/pip-8.0.2-py2.py3-none-any.whl/pip/_vendor/pkg_resources/__init__.py:87: UserWarning: Support for Python 3.0-3.2 has been dropped. Future versions will fail here.

但问题仍然存在。我还能做什么呢？

提前感谢！

Answer 1

如果要使用Python3.2，则必须使用pip <8和virtualenv < 14。另见https://virtualenv.pypa.io/en/latest/changes.html#id7

为什么需要使用古代Python3.2？您可以做的最好的事情是安装和使用更优秀的Python3.4。