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winPython科学计算平台及NeuroLab库的安装与配置

2015-07-18 15:23 597 查看
1、安装WinPython 集成计算包

Python我是直接安装的WinPython集成计算包,WinPython 集成计算包集成了Numpy等第三方Python科学计算库,安装WinPython 后,Numpy等计算库和Python 2.7会一同被安装。

WinPython并不会像Python官方的Windows平台安装程序一样在安装时往注册表中写入相关信息。同时,一些工具的安装或运行需要读取注册表中的Python信息,比如mlpy的安装程序。我安装适用于Python 2.7的mlpy-3.5.0.win32-py2.7.exe时就因为"Python version 2.7 required, which was not found in the registry."未读取到注册表中的Python信息而失败,所以需要先配置window注册信息,细节如下:

将下面的代码复制并保存为一个Python文件(比如registerpython.py)

# -*- coding: utf-8 -*-
"""
Created on Tue Jun 02 16:26:52 2015

@author: dapenghuang
"""
import sys
from _winreg import *

# tweak as necessary
version = sys.version[:3]
installpath = "E:\python\winpython_anzhuang\WinPython-32bit-2.7.10.1\python-2.7.10" #更换成python所在地址
regpath = "SOFTWARE\\Python\\Pythoncore\\%s\\" % (version)
installkey = "InstallPath"
pythonkey = "PythonPath"
pythonpath = "%s;%s\\Lib\\;%s\\DLLs\\" % (
installpath, installpath, installpath
)

def RegisterPy():
print "begin RegisterPy "
try:
print "open key : %s"%regpath
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 "*** EXCEPT: 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 "*** ERROR:Unable to register!"
print "*** REASON:You probably have another Python installation!"

def UnRegisterPy():
#print "begin UnRegisterPy "
try:
print "open HKEY_CURRENT_USER key=%s"%(regpath)
reg = OpenKey(HKEY_CURRENT_USER, regpath)
#reg = OpenKey(HKEY_LOCAL_MACHINE, regpath)
except EnvironmentError:
print "*** Python not registered?!"
return
try:
DeleteKey(reg, installkey)
DeleteKey(reg, pythonkey)
DeleteKey(HKEY_LOCAL_MACHINE, regpath)
except:
print "*** Unable to un-register!"
else:
print "--- Python", version, "is no longer registered!"

if __name__ == "__main__":
RegisterPy()


然后在在win7命令行中运行:

python 文件路径/registerpython.py #WinPython安装得到的python需要配置环境变量

这样就成功向注册表中写入了相关Python安装信息。

2、安装 BeautifulSoup (解析和分类网页)

首先下载 BeautifulSoup源码,其官网为:http://www.crummy.com/software/BeautifulSoup/。

然后解压后运行以下命令:

出现下面即表示BeautifulSoup安装成功。

3、安装NeuroLab

NeuroLab是用Python编写的神经网络库。下面的页面下载Neurolab(http://code.google.com/p/neurolab/downloads/list地址因为谷歌被禁不能访问):

https://pypi.python.org/pypi/neurolab

解压后我用命令行运行如下命令一直未能成功:

改为使用WinPython自带的WinPython
Control Panel进行安装,直接用WinPython Control Panel读取未解压前的NeuroLab文件,即可安装完毕,同时在python安装目录的Python27\Lib\site-packages下,就可以看到neurolab的文件夹。
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