由于最近需要做項目，需要進行分詞等，查了資料之后，發現python NLTK很強大，于是就想試試看。在網上找了很多安裝資料，都不太完整，下載的時候也總是會出現一點小意外，最后終于也安裝成功了，所以分享下經驗。

初學者，請高手指出不合理的地方。

我的工作站環境是Win10 64 + Python 2.7.12 64 bit。

按照NLTK上安裝主頁上的指引如下：

Source installation (for 32-bit or 64-bit Windows) 1.Install Python: http://www.python.org/download/releases/2.7.3/2.Install Numpy (optional): http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy3.Install Setuptools: http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11.win32-py2.7.exe4.Install Pip: Start>Run... c:/Python27/Scripts/easy_install pip5.Install PyYAML and NLTK: Start>Run... c:/Python27/Scripts/pip install pyyaml nltk6.Test installation: Start>All Programs>Python27>IDLE, then type import nltk

前3步的安裝都比較簡單，如果為了更好的編輯，也可以安裝一下編輯軟件，如PyCharm，Sublime text2/3等等。在安裝的時候要注意安裝路徑，最好不要出現中文。

我在安裝第4步的時候出現了一點小問題，執行命令后報錯：Python version 2.7 required, which was not found in the registry，于是我又到網上查了資料，解決方法是：

1）自己新建一個register.py文件，在文件中復制黏貼以下內容，然后保存到自己的路徑，我是直接放到pyhon的安裝文件夾中；

# # script to register Python 2.0 or later for use with win32all # and other extensions that require Python registry settings # # written by Joakim Loew for Secret Labs AB / PythonWare # # source: # http://www.pythonware.com/products/works/articles/regpy20.htm # # modified by Valentine Gogichashvili as described in http://www.mail-archive.com/distutils-sig@python.org/msg10512.html   import sys   from _winreg import *   # tweak as necessary version = sys.version[:3] installpath = sys.prefix   regpath = "SOFTWARE//Python//Pythoncore//%s//" % (version) installkey = "InstallPath" pythonkey = "PythonPath" pythonpath = "%s;%s//Lib//;%s//DLLs//" % (   installpath, installpath, installpath )   def RegisterPy():   try:     reg = OpenKey(HKEY_CURRENT_USER, regpath)   except EnvironmentError as e:     try:       reg = CreateKey(HKEY_CURRENT_USER, regpath)       SetValue(reg, installkey, REG_SZ, installpath)       SetValue(reg, pythonkey, REG_SZ, pythonpath)       CloseKey(reg)     except:       print "*** Unable to register!"       return     print "--- Python", version, "is now registered!"     return   if (QueryValue(reg, installkey) == installpath and     QueryValue(reg, pythonkey) == pythonpath):     CloseKey(reg)     print "=== Python", version, "is already registered!"     return   CloseKey(reg)   print "*** Unable to register!"   print "*** You probably have another Python installation!"   if __name__ == "__main__":   RegisterPy()