找不到Python可执行文件"python"

Question

当我安装iconv时npm出现以下错误:

iconv@2.1.0 install/root/Dropbox/nodeApps/nodeApp/node_modules/iconv node-gyp rebuild

gyp ERR! configure error 
gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
gyp ERR! stack     at failNoPython (/usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:103:14)
gyp ERR! stack     at /usr/local/lib/node_modules/npm/node_modules/node-gyp/lib/configure.js:42:11
gyp ERR! stack     at F (/usr/local/lib/node_modules/npm/node_modules/which/which.js:43:25)
gyp ERR! stack     at E (/usr/local/lib/node_modules/npm/node_modules/which/which.js:46:29)
gyp ERR! stack     at /usr/local/lib/node_modules/npm/node_modules/which/which.js:57:16
gyp ERR! stack     at Object.oncomplete (fs.js:107:15)
gyp ERR! System Linux 3.8.0-19-generic
gyp ERR! command "node" "/usr/local/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /root/Dropbox/nodeApps/nodeApp/node_modules/iconv
gyp ERR! node -v v0.10.28
gyp ERR! node-gyp -v v0.13.0
gyp ERR! not ok 

npm ERR! iconv@2.1.0 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the iconv@2.1.0 install script.
npm ERR! This is most likely a problem with the iconv package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node-gyp rebuild
npm ERR! You can get their info via:
npm ERR!     npm owner ls iconv
npm ERR! There is likely additional logging output above.
npm ERR! System Linux 3.8.0-19-generic
npm ERR! command "node" "/usr/local/bin/npm" "i"
npm ERR! cwd /root/Dropbox/nodeApps/nodeApp
npm ERR! node -v v0.10.28
npm ERR! npm -v 1.4.10
npm ERR! code ELIFECYCLE
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /root/Dropbox/nodeApps/nodeApp/npm-debug.log
npm ERR! not ok code 0

虽然我安装了python并且可以从控制台运行它:

# python
Python 2.7.3 (default, May  9 2014, 12:18:32) 
[GCC 4.8.2] on linux2

并设置PATH为~/.bashrc:

export PYTHONPATH=$PYTHONPATH:/Python-2.7.3
export PATH=$PATH:/Python-2.7.3

并做了 . ~/.bashrc

Answer 1

对于在Ubuntu 16.04上遇到此问题的任何人...
node-gyp不能使用Python 3.5.X,这似乎是16.04附带的默认值.我在某地读过16.04也应该附带Python2但我在安装时找不到它.

我修正了上述问题:

apt-get update     
apt-get install python2.7    
ln -s /usr/bin/python2.7 /usr/bin/python 

现在什么时候node-gyp去寻找python它将打你的Python2.7安装并正确加载.

Answer 2

有一种简单而安全的方法将其放入~/.bashrc或~/.bash_aliases文件中：

alias python=python3

在文件中添加上述内容后，运行source ~/.bashrc或source ~/.bash_aliases

这个解决方案适用于我的 Ubuntu，请参阅此处的原始答案

Answer 3

在您的bash会话中,您只需键入python并获得有效响应,请输入which python并记下python二进制文件的完整路径位置.以该位置并将它放入您PYTHONPATH和PATH环境变量,除了没有python底.

例如,which python给我:

/usr/local/bin/python

所以我会写:

export PYTHONPATH=$PYTHONPATH:/usr/local/bin
export PATH=$PATH:/usr/local/bin

在我的~/.bashrc.

Answer 4

安装python2.7。
apt install python2