Appium new installation on Windows7

Installing Appium on Windows7 using node.js: initial error message indicated it was looking for Python; installed Python 2.7 then following displayed:

c:\Ionic>npm install -g appium
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[email protected] install C:\Users\Cliff Birdsell\AppData\Roaming\npm\node_modules\appium\node_modules\ws\node_modules\bufferutil
node-gyp rebuild

C:\Users\Cliff Birdsell\AppData\Roaming\npm\node_modules\appium\node_modules\ws\node_modules\bufferutil>node “C:\Program Files (x86)\nodejs\node_modules\npm\bin\node-gyp-bin\…..\node_modules\node-gyp\bin\node-gyp.js” rebuild
gyp ERR! configure error
gyp ERR! stack Error: spawn C:\Python27 ENOENT
gyp ERR! stack at exports._errnoException (util.js:746:11)
gyp ERR! stack at Process.ChildProcess._handle.onexit (child_process.js:1046:32)
gyp ERR! stack at child_process.js:1137:20
gyp ERR! stack at process._tickCallback (node.js:355:11)
gyp ERR! System Windows_NT 6.1.7601
gyp ERR! command “node” “C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js” “rebuild”
gyp ERR! cwd C:\Users\Cliff Birdsell\AppData\Roaming\npm\node_modules\appium\node_modules\ws\node_modules\bufferutil
gyp ERR! node -v v0.12.0
gyp ERR! node-gyp -v v1.0.2
gyp ERR! not ok

[email protected] install C:\Users\Cliff Birdsell\AppData\Roaming\npm\node_modules\appium\node_modules\ws\node_modules\utf-8-validate
node-gyp rebuild

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C:\Users\Cliff Birdsell\AppData\Roaming\npm\node_modules\appium\node_modules\ws\node_modules\utf-8-validate>node “C:\Program Files (x86)\nodejs\node_modules\npm\bin\node-gyp-bin\…..\node_modules\node-gyp\bin\node-gyp.js” rebuild
gyp ERR! configure error
gyp ERR! stack Error: spawn C:\Python27 ENOENT
gyp ERR! stack at exports._errnoException (util.js:746:11)
gyp ERR! stack at Process.ChildProcess._handle.onexit (child_process.js:1046:32)
gyp ERR! stack at child_process.js:1137:20
gyp ERR! stack at process._tickCallback (node.js:355:11)
gyp ERR! System Windows_NT 6.1.7601
gyp ERR! command “node” “C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js” “rebuild”
gyp ERR! cwd C:\Users\Cliff Birdsell\AppData\Roaming\npm\node_modules\appium\node_modules\ws\node_modules\utf-8-validate
gyp ERR! node -v v0.12.0
gyp ERR! node-gyp -v v1.0.2
gyp ERR! not ok
npm WARN optional dep failed, continuing [email protected]
npm WARN optional dep failed, continuing [email protected]
\

Since the WARN indicator, are the errors related to Python critical? How can I resolve.

Thanks … Cliff