python – 在Openshift上使用node-gyp构建模块

> canvas@1.2.3 install /var/lib/.../repo/node_modules/canvas
> node-gyp rebuild

Traceback (most recent call last):
  File "/opt/rh/v8314/root/usr/bin/gyp",line 15,in <module>
    import gyp
ImportError: No module named gyp
gyp ERR! configure error 
gyp ERR! stack Error: `gyp` failed with exit code: 1
gyp ERR! stack     at ChildProcess.onCpExit (/opt/rh/nodejs010/root/usr/lib/node_modules/node-gyp/lib/configure.js:343:16)
gyp ERR! stack     at ChildProcess.emit (events.js:98:17)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:820:12)
gyp ERR! System Linux 2.6.32-504.16.2.el6.x86_64
gyp ERR! command "node" "/opt/rh/nodejs010/root/usr/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "rebuild"
gyp ERR! cwd /var/lib/.../repo/node_modules/canvas
gyp ERR! node -v v0.10.35
gyp ERR! node-gyp -v v1.0.2
gyp ERR! not ok 

npm ERR! canvas@1.2.3 install: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the canvas@1.2.3 install script.
npm ERR! This is most likely a problem with the canvas 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 canvas
npm ERR! There is likely additional logging output above.
npm ERR! System Linux 2.6.32-504.16.2.el6.x86_64
npm ERR! command "node" "/opt/rh/nodejs010/root/usr/bin/npm" "install" "node-canvas-1.2.3"
npm ERR! cwd /var/lib/.../app-root/runtime/repo
npm ERR! node -v v0.10.35
npm ERR! npm -v 1.4.28
npm ERR! code ELIFECYCLE
npm ERR! not ok code 0

我的理解是node-gyp正在导入未找到的gyp python模块.几周前我通过在我的node_modules目录(/var/lib/…/repo/node_modules/node-gyp/gyp/pylib)中将PYTHONPATH env变量设置为gyp python模块来解决了这个问题.这样构建成功完成,我可以使用node-canvas模块.现在我怀疑Openshift发生了一些变化,这种技术不再适用了.即使设置了PYTHONPATH,当我安装模块时仍然无法找到gyp模块.知道为什么即使将PYTHONPATH设置为包含模块的位置,也无法找到gyp模块？也许它被忽略了？ gyp文件包含：

import sys

# TODO(mark): sys.path manipulation is some temporary testing stuff.
try:
  import gyp
except ImportError,e:
  import os.path
  sys.path.append(os.path.join(os.path.dirname(sys.argv[0]),'pylib'))
  import gyp

if __name__ == '__main__':
  sys.exit(gyp.main(sys.argv[1:]))

看不出PYTHONPATH未被使用的原因(并且无法检查gyp文件中的PYTHONPATH值,因为它需要root权限,我认为我在Openshift上没有这个权限).也许npm以某种方式重置env？