How to set the PATH (Windows)
It was not convenient to move to the directlry under C:\Python27\Scrpits every time I start to use Python and NLTK in my Windows 7 environment. Now I learnt how to set the PATH as an enverionment variable.
1. Right click My Computer icon then choose Properties
2. Select "Advanced system settings"
3. Click "Environtment Varialbes" button
4. Find an entry of Path in System variables then click EDIT
5. Add following texts at the last and click OK
;c:\Python27\Scripts
6. Now I don't have to move to the directly to call python and NLTK
I am really not get used to use command prompt and didn't know the meaning of set the PATH (In Japanese パスを通す). It's shame of mine!!