Question

我想将一个nodejs脚本（lessc）安装到virtualenv中。

我该怎么做？

由于

Natim

Answer 1

我喜欢shorrty的回答，他建议使用nodeenv，请参阅： is there an virtual environment for node.js?

我遵循了这个指南： http://calvinx.com/2013/07/11/python-virtualenv-with-node-environment-via-nodeenv/

我必须做的就是：

. ../bin/activate # switch to my Python virtualenv first
pip install nodeenv # then install nodeenv (nodeenv==0.7.1 was installed)
nodeenv --python-virtualenv # Use current python virtualenv
npm install -g less # install lessc in the virtualenv

Answer 2

这是我到目前为止所使用的内容，但我认为可能会进行优化。

安装nodejs

wget http://nodejs.org/dist/v0.6.8/node-v0.6.8.tar.gz
tar zxf node-v0.6.8.tar.gz
cd node-v0.6.8/
./configure --prefix=/absolute/path/to/the/virtualenv/
make
make install

安装npm（节点包管理器）

/absolute/path/to/the/virtualenv/bin/activate
curl https://npmjs.org/install.sh | sh

安装lesscss

npm install less -g

当您激活virtualenv时，您可以使用lessc

Answer 3

我创建了一个bash脚本来自动化Natim的解决方案。

确保您的Python virtualenv处于活动状态并运行该脚本。 NodeJS，NPM和lessc将被下载并安装到您的virtualenv中。

http://pastebin.com/wKLWgatq

#!/bin/sh
#
# This script will download NodeJS, NPM and lessc, and install them into you Python
# virtualenv.
#
# Based on a post by Natim:
# http://stackoverflow.com/questions/8986709/how-to-install-lessc-and-nodejs-in-a-python-virtualenv

NODEJS="http://nodejs.org/dist/v0.8.3/node-v0.8.3.tar.gz"

# Check dependencies
for dep in gcc wget curl tar make; do
    which $dep > /dev/null || (echo "ERROR: $dep not found"; exit 10)
done

# Must be run from virtual env
if [ "$VIRTUAL_ENV" = "" ]; then
    echo "ERROR: you must activate the virtualenv first!"
    exit 1
fi

echo "1) Installing nodejs in current virtual env"
echo

cd "$VIRTUAL_ENV"

# Create temp dir
if [ ! -d "tmp" ]; then
    mkdir tmp
fi
cd tmp || (echo "ERROR: entering tmp directory failed"; exit 4)

echo -n "- Entered temp dir: "
pwd

# Download
fname=`basename "$NODEJS"`
if [ -f "$fname" ]; then
    echo "- $fname already exists, not downloading"
else
    echo "- Downloading $NODEJS"
    wget "$NODEJS" || (echo "ERROR: download failed"; exit 2)
fi

echo "- Extracting"
tar -xvzf "$fname" || (echo "ERROR: tar failed"; exit 3)
cd `basename "$fname" .tar.gz` || (echo "ERROR: entering source directory failed"; exit 4)

echo "- Configure"
./configure --prefix="$VIRTUAL_ENV" || (echo "ERROR: configure failed"; exit 5)

echo "- Make"
make || (echo "ERROR: build failed"; exit 6)

echo "- Install "
make install || (echo "ERROR: install failed"; exit 7)


echo
echo "2) Installing npm"
echo
curl https://npmjs.org/install.sh | sh || (echo "ERROR: install failed"; exit 7)

echo
echo "3) Installing lessc with npm"
echo
npm install less -g || (echo "ERROR: lessc install failed"; exit 8)

echo "Congratulations! lessc is now installed in your virtualenv"

Answer 4

我将提供我的通用解决方案，以便在virtualenv中使用Gems和NPM Gems和Npm支持可通过env设置进行自定义：GEM_HOME和npm_config_prefix

您可以将下面的代码段粘贴到postactivate或activate脚本中（如果您使用virtualenvwrapper则更重要）

export GEM_HOME="$VIRTUAL_ENV/lib/gems"
export GEM_PATH=""
PATH="$GEM_HOME/bin:$PATH"
export npm_config_prefix=$VIRTUAL_ENV
export PATH

现在，在您的virtualenv中，通过gem install或npm -g install安装的所有库将安装在您的PATH中添加的virtualenv和二进制文件中如果您使用virtualenvwrapper，如果您修改postactivate

内的$VIRTUALENVWRAPPER_HOOK_DIR，则可以对您的所有版本进行全局更改

此解决方案不包括在virtualenv中安装nodejs，但我认为最好将此任务委托给打包系统（apt，yum，brew ..）并安装node和npm global

编辑：

我最近为virtualenvwrapper创建了2个插件来自动执行此操作。有一个用于gem和npm：

http://pypi.python.org/pypi/virtualenvwrapper.npm

http://pypi.python.org/pypi/virtualenvwrapper.gem

如何在Python virtualenv中安装lessc和nodejs？

4 个答案: