如何使用pyenv安装的python创建virtualenv

Question

我安装了2个pyenv版本

pyenv versions
  system
* 2.7 (set by ../.python-version)
  3.5.3

当我在项目目录中创建virtualenv时，我希望它为当前virtualenv python版本pyenv创建2.7

但是当我使用mkvirtualenv whatever

创建一个时

虚拟环境创建了一个python3 virtualenv

ll ~/.virtualenvs/mobile2/bin
total 5800
-rw-r--r--  1 ohadperry  staff   2.0K Sep  6 10:59 activate
-rw-r--r--  1 ohadperry  staff   1.0K Sep  6 10:59 activate.csh
-rw-r--r--  1 ohadperry  staff   2.1K Sep  6 10:59 activate.fish
-rw-r--r--  1 ohadperry  staff   1.1K Sep  6 10:59 activate_this.py
-rwxr-xr-x  1 ohadperry  staff   266B Sep  6 10:59 easy_install
-rwxr-xr-x  1 ohadperry  staff   266B Sep  6 10:59 easy_install-3.5
-rwxr-xr-x  1 ohadperry  staff   149B Sep  6 10:59 get_env_details
-rwxr-xr-x  1 ohadperry  staff   238B Sep  6 10:59 pip
-rwxr-xr-x  1 ohadperry  staff   238B Sep  6 10:59 pip3
-rwxr-xr-x  1 ohadperry  staff   238B Sep  6 10:59 pip3.5
-rw-r--r--  1 ohadperry  staff    71B Sep  6 10:59 postactivate
-rw-r--r--  1 ohadperry  staff    73B Sep  6 10:59 postdeactivate
-rwxr-xr-x  1 ohadperry  staff    68B Sep  6 10:59 preactivate
-rw-r--r--  1 ohadperry  staff    74B Sep  6 10:59 predeactivate
-rwxr-xr-x  1 ohadperry  staff   2.8M Sep  6 10:58 python
-rwxr-xr-x  1 ohadperry  staff   2.3K Sep  6 10:59 python-config
lrwxr-xr-x  1 ohadperry  staff     6B Sep  6 10:58 python3 -> python
lrwxr-xr-x  1 ohadperry  staff     6B Sep  6 10:58 python3.5 -> python
-rwxr-xr-x  1 ohadperry  staff   245B Sep  6 10:59 wheel

Answer 1

如果您使用的是pyenv，我建议您构建pyenv受控virualenv（确保先安装pyenv-virtualenv）

$ pyenv virtualenv 2.7 <your new env>

然后您可以使用pyenv

切换到此virtualenv

$ pyenv local <your new env>

或

$ pyenv shell <your new env>

Answer 2

for python2.7

virtualenv -p /usr/bin/python2.7 my_env