win10 64bit下python NLTK安装教程_Python

由于最近需要做项目，需要进行分词等，查了资料之后，发现python NLTK很强大，于是就想试试看。在网上找了很多安装资料，都不太完整，下载的时候也总是会出现一点小意外，最后终于也安装成功了，所以分享下经验。

初学者，请高手指出不合理的地方。

我的工作站环境是Win10 64 + Python 2.7.12 64 bit。

按照NLTK上安装主页上的指引如下：

									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/#numpy

									3.Install Setuptools: http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11.win32-py2.7.exe

									4.Install Pip: Start>Run... c:\Python27\Scripts\easy_install pip

									5.Install PyYAML and NLTK: Start>Run... c:\Python27\Scripts\pip install pyyaml nltk

									6.Test installation: Start>All Programs>Python27>IDLE, then type import nltk

前3步的安装都比较简单，如果为了更好的编辑，也可以安装一下编辑软件，如PyCharm，Sublime text2/3等等。在安装的时候要注意安装路径，最好不要出现中文。

我在安装第4步的时候出现了一点小问题，执行命令后报错：Python version 2.7 required, which was not found in the registry，于是我又到网上查了资料，解决方法是：

1）自己新建一个register.py文件，在文件中复制黏贴以下内容，然后保存到自己的路径，我是直接放到pyhon的安装文件夹中；

				?

									# 

									# 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()

2）Ctrl+R打开cmd，然后进入python的安装目录（如果有配置环境变量的话，就不用这么麻烦了，可以直接命令操作），输入：python register.py（这个是刚才存错register.py的路径，如D:\register.py）。出现Python 2.7 is already registered！则表示配置成功。

3）接着，进入Scripts目录，输入：easy_install pip，提示安装成功。

第5步是安装PyYAML和NLTK。直接在刚才的目录中输入：pip install pyyaml nltk，这时会提示安装是否成功，若安装成功可以接着下一步。

此时，就可以到IDLE中进行下载NLTK的数据包：

win10 64bit下python NLTK安装教程