如何更改默认Virtualenvwrapper提示 [英] How to Change Default Virtualenvwrapper Prompt

问题描述

你如何更改默认Virtualenvwrapper提示？默认情况下，工作在一个特定的虚拟环境像命令workon＆LT; _name_of_env_>prepends的virtualenv中你提示的名称。这可能会，如果你不使用默认的命令提示符下运行不佳。

How do you change the default Virtualenvwrapper prompt? By default, working on a particular virtual environment with a command like "workon <_name_of_env_>" prepends the name of the virtualenv to your prompt. This may work poorly if you're not using a default command prompt.

推荐答案

在默认情况下，当你切换到与该命令的virtualenvworkon＆LT; name_of_env>，virtualenvwrapper prepends沿线串（ ＆LT; name_of_env>）你的命令提示符。问题是，我把我的Bash提示符与行：

By default, when you switch into a virtualenv with the command "workon < name_of_env >", virtualenvwrapper prepends a string along the lines of "(< name_of_env >) " to your command prompt. The problem is that I set my Bash prompt with the lines:

PROMPT_COLOR1='0;36m'
PROMPT_COLOR2='1;34m'
PS1='\n\[\033[$PROMPT_COLOR1\](\t)\[\033[$PROMPT_COLOR2\] \u @ \w \n\[\033[$PROMPT_COLOR1\]$ \[\033[0;39m\]'

其中产量沿线的命令提示符：

Which yields a command prompt along the lines of:

< old_line >

(19:11:05) kevin @ ~/research 
$ 

切换到一个新的虚拟环境workon＆LT; name_of_env>打开命令提示符是这样的：

Switching into a new virtual environment with "workon < name_of_env >" turned the command prompt to something like:

< old_line >
(< name_of_env >)
(19:11:05) kevin @ ~/research 
$ 

这比我想要的和错误的颜色来引导更多的混乱。我希望这样的事情：

Which was more cluttered than I wanted and the wrong color to boot. I was hoping for something like:

< old_line >

(< name_of_env >) (19:11:05) kevin @ ~/research 
$ 

伊恩Bicking已经previously指出，<一个href=\"http://stackoverflow.com/questions/3646014/changing-the-prompt-style-of-a-virtualenv-instance-with-zsh\">virtualenvwrapper's钩是，但我想我会后我的实际code到也许拯救别人一分钟上下行的解决方案。

Ian Bicking has previously pointed out that virtualenvwrapper's hooks were the solution but I figured I'd post my actual code to maybe save someone else a minute down the line.

我只不过是编辑文件$ WORKON_HOME / postactivate包括这些行：

I simply edited the file $WORKON_HOME/postactivate to include these lines:

# color virtualenv name properly and put it after the \n if there is one at the start of the prompt
if [ ${_OLD_VIRTUAL_PS1:0:2} == '\n' ]; then
    PS1="\n\[\033[$PROMPT_COLOR1\](`basename \"$VIRTUAL_ENV\"`) ${_OLD_VIRTUAL_PS1:2:${#_OLD_VIRTUAL_PS1}}"
else
    PS1="\[\033[$PROMPT_COLOR1\](`basename \"$VIRTUAL_ENV\"`) $_OLD_VIRTUAL_PS1 "
fi

和瞧！颜色和位置是正确的，当你直接从一个虚拟环境中切换到另一个（我没想到）。

and voila! The color and location are correct and it even works when you switch directly from one virtual environment to another (which I hadn't expected).

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