如何在Ubuntu 16.04上将virtualenv与python3.6一起使用? [英] How to use virtualenv with python3.6 on ubuntu 16.04?

问题描述

我正在使用Ubuntu 16.04，该版本随附Python 2.7和Python 3.5.我已经在上面安装了Python 3.6，并通过alias python3=python3.6将python3符号链接到python3.6.

I'm using Ubuntu 16.04, which comes with Python 2.7 and Python 3.5. I've installed Python 3.6 on it and symlink python3 to python3.6 through alias python3=python3.6.

然后，我使用sudo -H pip3 install virtualenv安装了virtualenv.当我检查时，virtualenv安装在"/usr/local/lib/python3.5/dist-packages"位置，因此，当我尝试使用python3 -m venv ./venv1创建virtualenv时，会抛出错误:

Then, I've installed virtualenv using sudo -H pip3 install virtualenv. When I checked, the virtualenv got installed in "/usr/local/lib/python3.5/dist-packages" location, so when I'm trying to create virtualenv using python3 -m venv ./venv1 it's throwing me errors:

Error Command: ['/home/wgetdj/WorkPlace/Programming/Python/myvenv/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']

我该怎么办?

推荐答案

我们通常使用$ python3 -m venv myvenv创建一个新的virtualenv(此处myvenv是我们的virtualenv的名称).

We usually use $ python3 -m venv myvenv to create a new virtualenv (Here myvenv is the name of our virtualenv).

类似于我的情况，如果您的系统上同时有python3.5和python3.6，那么您可能会遇到一些错误.

Similar to my case, if you have both python3.5 as well as python3.6 on your system, then you might get some errors.

注意::在某些版本的Debian/Ubuntu中，您可能会收到以下错误消息:

NOTE: On some versions of Debian/Ubuntu you may receive the following error:

 The virtual environment was not created successfully because ensure pip is not available.  On Debian/Ubuntu systems, you need to install the python3-venv package using the following command.
      apt-get installpython3-venv  
 You may need to use sudo with that command.  After installing the python3-venv package, recreate your virtual environment. 

在这种情况下，请按照上述说明安装python3-venv软件包:

In this case, follow the instructions above and install the python3-venv package:

$ sudo apt-get install python3-venv

注意::在某些版本的Debian/Ubuntu上启动这样的虚拟环境当前会产生以下错误:

NOTE: On some versions of Debian/Ubuntu initiating the virtual environment like this currently gives the following error:

Error Command: ['/home/wgetdj/WorkPlace/Programming/Python/myvenv/bin/python3', '-Im', 'ensurepip', '--upgrade', '--default-pip']

要解决此问题，请改用virtualenv命令.

To get around this, use the virtualenv command instead.

$ sudo apt-get install python-virtualenv
$ virtualenv --python=python3.6 myvenv

注意::如果出现类似错误

E:无法找到软件包python3-venv

E: Unable to locate package python3-venv

然后运行:

sudo apt install python3.6-venv

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