virtualenv virtualenvwrapper virtualenv：错误：无法识别的参数：--no-site-packages

Question

我正在尝试将 python 从 3.6 升级到 3.8。我成功地使用了 virtualenv/wrapper（虽然只有一个环境，没有花里胡哨的东西），但是升级并不顺利。我删除了所有内容并尝试重新开始。我正在尝试使用mkvirtualenv test 创建一个新环境，但现在出现错误：

virtualenv: error: unrecognized arguments: --no-site-packages 给出了关于如何调用 virtualenv 的人工建议，这让我相信 virtualenvwrapper 正在工作，但我错过了一些东西。

这是我的详细信息：

终端（osx - 10.13.6 (17G65)）

today@5 ~/dev/MST/server(master)$ which python
/usr/bin/python
today@5 ~/dev/MST/server(master)$ which python3
/usr/local/bin/python3
today@5 ~/dev/MST/server(master)$ which pip
/usr/local/bin/pip
today@5 ~/dev/MST/server(master)$ which pip3
today@5 ~/dev/MST/server(master)$ pip -V
-bash: /usr/local/bin/pip: /usr/local/opt/python/bin/python3.6: bad interpreter: No such file or directory
today@5 ~/dev/MST/server(master)$ pip3 -V
pip 20.0.2 from /usr/local/lib/python3.8/site-packages/pip (python 3.8)
today@5 ~/dev/MST/server(master)$ pip3 install virtualenv virtualenvwrapper
Requirement already satisfied: virtualenv in /usr/local/lib/python3.8/site-packages (20.0.13)
Requirement already satisfied: virtualenvwrapper in /usr/local/lib/python3.8/site-packages (4.8.4)
Requirement already satisfied: filelock<4,>=3.0.0 in /usr/local/lib/python3.8/site-packages (from virtualenv) (3.0.12)
Requirement already satisfied: appdirs<2,>=1.4.3 in /usr/local/lib/python3.8/site-packages (from virtualenv) (1.4.3)
Requirement already satisfied: six<2,>=1.9.0 in /usr/local/lib/python3.8/site-packages (from virtualenv) (1.14.0)
Requirement already satisfied: distlib<1,>=0.3.0 in /usr/local/lib/python3.8/site-packages (from virtualenv) (0.3.0)
Requirement already satisfied: stevedore in /usr/local/lib/python3.8/site-packages (from virtualenvwrapper) (1.32.0)
Requirement already satisfied: virtualenv-clone in /usr/local/lib/python3.8/site-packages (from virtualenvwrapper) (0.5.3)
Requirement already satisfied: pbr!=2.1.0,>=2.0.0 in /usr/local/lib/python3.8/site-packages (from stevedore->virtualenvwrapper) (5.4.4)
today@5 ~/dev/MST/server(master)$ which virtualenv
/usr/local/bin/virtualenv
today@5 ~/dev/MST/server(master)$ which virtualenvwrapper
today@5 ~/dev/MST/server(master)$ 
today@5 ~/dev/MST/server(master)$ workon
today@5 ~/dev/MST/server(master)$ 
today@5 ~/dev/MST/server(master)$ mkvirtualenv test
usage: virtualenv [--version] [--with-traceback] [-v | -q] [--app-data APP_DATA] [--clear-app-data] [--discovery {builtin}] [-p py] [--creator {builtin,cpython3-posix,venv}] [--seeder {app-data,pip}] [--no-seed]
                  [--activators comma_sep_list] [--clear] [--system-site-packages] [--symlinks | --copies] [--download | --no-download] [--extra-search-dir d [d ...]] [--pip version] [--setuptools version] [--wheel version] [--no-pip]
                  [--no-setuptools] [--no-wheel] [--symlink-app-data] [--prompt prompt] [-h]
                  dest
virtualenv: error: unrecognized arguments: --no-site-packages

~/.bash_profile

#…
export WORKON_HOME=$HOME/.virtualenvs
export PROJECT_HOME=$HOME/Devel
export VIRTUALENVWRAPPER_PYTHON=/usr/local/bin/python3
export VIRTUALENVWRAPPER_VIRTUALENV=/usr/local/bin/virtualenv
export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'

source /usr/local/bin/virtualenvwrapper.sh
#…

注意-

• 试图安装 virtualenvwrapper 它说是 4.8.4 版，但在线文档说它在 5.x 中

Answer 1

--no-site-packages 是 virtualenv 的默认值（并且已经使用了 5 年？）您可以从 .bashrc 中删除 export VIRTUALENVWRAPPER_VIRTUALENV_ARGS='--no-site-packages'

virtualenv>=20 中显示此选项已被删除