使用 python 3 安装 virtualenv 时出错

Question

我更新到 python3 并使用以下方式下载了 virtualenv： sudo /usr/bin/easy_install virtualenv

当我 go 启动 virtualenv 时，我收到以下错误消息： virtualenv project1 Traceback (most recent call last): File "/usr/local/bin/virtualenv", line 6, in <module> from pkg_resources import load_entry_point File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3241, in <module> @_call_aside File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3225, in _call_aside f(*args, **kwargs) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3254, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 585, in _build_master return cls._build_from_requirements(__requires__) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 598, in _build_from_requirements dists = ws.resolve(reqs, Environment()) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 786, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'zipp>=0.4' distribution was not found and is required by importlib-resources virtualenv project1 Traceback (most recent call last): File "/usr/local/bin/virtualenv", line 6, in <module> from pkg_resources import load_entry_point File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3241, in <module> @_call_aside File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3225, in _call_aside f(*args, **kwargs) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 3254, in _initialize_master_working_set working_set = WorkingSet._build_master() File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 585, in _build_master return cls._build_from_requirements(__requires__) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 598, in _build_from_requirements dists = ws.resolve(reqs, Environment()) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 786, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'zipp>=0.4' distribution was not found and is required by importlib-resources

我环顾四周，意识到没有安装“zipp”，所以我也安装了它。 当我再次运行 virtualenv 时，我再次收到与上述相同的错误消息。 并且由于某种原因，即使我升级到 python3，它仍然引用 python 2.7。

Answer 1

请试试这个..

您只需完全按照以下项目进行操作：

以管理员身份打开命令提示符 -> 右键单击 CMD 并以管理员身份运行

go 要创建 VirtualENV 的文件夹： 例如： > Cd C:\Users...\Documents\python\src

输入： PIP install Virtualenv确保您的互联网连接正常

4.类型： python -m venv env

然后你可以在这个 env 文件夹中创建你的项目..

所有注释代码都应在命令提示符 AS 管理员中编写

Answer 2

我最终使用了内置的 python 3 venv package。 它同样有效，而且简单明了。 谢谢你的帮助

启动虚拟环境： python3 -m venv project1激活虚拟环境： source project1/bin/activate停用虚拟环境： deactivate

Answer 3

如果您使用的是 Python 3.3 或更高版本，则可以使用内置的 venv [ https://docs.python.org/3/library] 这将减少依赖项的数量，使安装和故障排除更容易一些。

要仔细检查您是否调用了正确的 Python 解释器，请运行python3 -V或python -V （取决于它的别名方式）。

Answer 4

试试看。

virtualenv venv

如果正在使用 python 3.x，它应该在同一目录中创建一个 venv 目录。