已通过PIP安装NPM，但收到"npm:未找到命令“
我在OS X Yosemite 10.10.5上安装了Python 2.7。我想通过PIP安装NPM，并且命令显示成功，并且我在/Library/Python/2.7/site-packages/中有一个名为npm的目录，但是对NPM执行任何操作都会产生“没有找到命令”。
下面是我安装PIP和NPM的方式：
第一步
sudo easy_install pip给出了以下输出：
Reading https://pypi.python.org/simple/pip/
Best match: pip 8.1.2
Downloading https://pypi.python.org/packages/e7/a8/7556133689add8d1a54c0b14aeff0acb03c64707ce100ecd53934da1aa13/pip-8.1.2.tar.gz#md5=87083c0b9867963b29f7aba3613e8f4a
Processing pip-8.1.2.tar.gz
Writing /tmp/easy_install-v4g_ZO/pip-8.1.2/setup.cfg
Running pip-8.1.2/setup.py -q bdist_egg --dist-dir /tmp/easy_install-v4g_ZO/pip-8.1.2/egg-dist-tmp-5Ku7Ds
warning: no previously-included files found matching '.coveragerc'
warning: no previously-included files found matching '.mailmap'
warning: no previously-included files found matching '.travis.yml'
warning: no previously-included files found matching '.landscape.yml'
warning: no previously-included files found matching 'pip/_vendor/Makefile'
warning: no previously-included files found matching 'tox.ini'
warning: no previously-included files found matching 'dev-requirements.txt'
warning: no previously-included files found matching 'appveyor.yml'
no previously-included directories found matching '.github'
no previously-included directories found matching '.travis'
no previously-included directories found matching 'docs/_build'
no previously-included directories found matching 'contrib'
no previously-included directories found matching 'tasks'
no previously-included directories found matching 'tests'
Adding pip 8.1.2 to easy-install.pth file
Installing pip script to /usr/local/bin
Installing pip2.7 script to /usr/local/bin
Installing pip2 script to /usr/local/bin
Installed /Library/Python/2.7/site-packages/pip-8.1.2-py2.7.egg
Processing dependencies for pip
Finished processing dependencies for pip第2步：
sudo -H pip install npm给出了以下输出：
Collecting npm
Using cached npm-0.1.1.tar.gz
Requirement already satisfied (use --upgrade to upgrade): optional-django==0.1.0 in /Library/Python/2.7/site-packages (from npm)
Installing collected packages: npm
Running setup.py install for npm ... done第3步：
npm -v给出了以下输出：
-bash: npm: command not found下面是我的$PATH变量中的内容，但为了便于阅读，它们被分成不同的行。值得注意的是，我从别人的机器上复制了这些文件，而我的机器上没有/usr/local/lib目录。
/usr/local/bin:
/usr/bin:
/bin:
/usr/sbin:
/sbin:
/opt/local/bin:
/opt/local/sbin:
/usr/local/lib/python2.7:
/usr/local/lib/python2.7/site-packages:
/usr/local/lib/node_modules:
/usr/bin/python2.7:
/Library/Python/2.7/site-packages/npm我对Linux并不陌生，但我是OS X的新手，所以这可能是我明显忽略的事情。
回答 3
Stack Overflow用户
发布于 2016-10-26 05:17:42
您在步骤2中执行的操作
sudo -H pip install npm 不在您的计算机上安装npm。这个命令只要求安装一个名为npm的python包。
软件包描述可从https://pypi.python.org/pypi/npm/0.1.1获得：)
正如developper github存储库中所描述的，这个python包是为“用于npm的Python绑定和实用程序”而设计的。
注意:这个包是未维护的。
如果你想安装npm，你应该检查node js web site
Stack Overflow用户
发布于 2016-10-26 06:11:34
如果您正在谈论npm (Node Package Manager)，您必须首先安装Nodejs。NPM自带Node。
要通过Mac执行此操作，请使用http://brew.sh或https://www.macports.org。
brew update
brew install nodeStack Overflow用户
发布于 2020-12-24 04:06:10
对于Python-3，要安装npm(1)命令(而不是npm bindings)，请执行以下操作：
让${HOME}/pyvenv.d/成为Python-3虚拟环境所在的位置。然后：
user$ source ${HOME}/pyvenv.d/activate
(pyvenv.d) user$ pip install nodeenv # Install a tool that can install a pre-build npm(1) version.
(pyvenv.d) user$ nodeenv -p # Run tool to install npm(1) in current Python venv.
(pyvenv.d) user$ which npm
/home/user/pyvenv.d/bin/npm
(pyvenv.d) user$ npm --version
7.3.0
(pyvenv.d) user$ which node
/home/user/pyvenv.d/bin/node
(pyvenv.d) user$ node --version
v15.5.0只要Python-3虚拟环境保持激活状态，您现在就可以照常发出npm(1)命令。例如：
(pyvenv.d) user$ npm install [-g] configurable-http-proxy
我希望这能帮到你。
https://stackoverflow.com/questions/38062328
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