NLTK 3.2.2 安装经验
- Nltk 3.2.2要求Python版本是Python2.7 或者Python3.4+。
- Nltk 3.2.3 如果是从网站上直接下载程序进行安装可能会报错：Python version -32 required, which was not found in the registry，
原因可能有以下几方面：
1) Python版本不对：重新安装合适的Python版本
2) Python注册信息未加入到注册表中
3) Python注册信息不对
针对后面两种情况，我们可以直接通过脚本register.py(具体代码内容见本文后面)建立注册信息，然后运行该脚本。注册信息添加成功后重新安装nltk模块即可。
- Python3.0 以上版本都自带有pip,可以通过pip快捷安装nltk的最新版本，但为了保证库的版本最新，可以先更新pip
1) 更新pip：py –m pip install –upgrade pip
2) 安装nltk: py –m pip install nltk
当出现打印消息：successfully installed nltk-3.2.2 six-1.10.0时表示安装成功。
#===========================register.py=======================================##
#!/usr/bin/env python
# -*- coding:utf-8 -*-
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!") RegisterPy()