python2.7和NLTK安装详细教程

本文为大家分享了python2.7和NLTK安装教程，具体内容如下

系统：Windows 7 Ultimate 64-bits

Python 2.7安装

下载Python 2.7：官网下载地址

安装

NLTK安装

1、下载NLTK，下载地址， 安装。

2、安装时会出现以下错误：Python version 2.7 required, which was not found in the registry。

解决办法：

(1)新建一个register.py文件，把以下代码粘贴进去，保存到D盘。

# 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)开始-运行-cmd，把D:\register.py复制进去按回车，出现Python 2.7 is already registered！则表示配置成功。

3、继续安装setuptools
4、安装Pip：开始-运行-D:\Program Files\Python\Scripts\easy_install pip
5、安装PyYAML和NLTK：开始-运行-D:\Program Files\Python\Scripts\pip install pyyaml nltk
6、测试安装：开始-所有程序-Python 2.7-IDLE(Python GUI)，输入import nltk，无错误表示成功。

来源：https://blog.csdn.net/joey_su/article/details/17287559