1. 程式人生 > >winPython科學計算平臺及NeuroLab庫的安裝與配置

winPython科學計算平臺及NeuroLab庫的安裝與配置

1、安裝WinPython 整合計算包

    Python我是直接安裝的WinPython整合計算包,WinPython 整合計算包集成了Numpy等第三方Python科學計算庫,安裝WinPython 後,Numpy等計算庫和Python 2.7會一同被安裝。

    WinPython並不會像Python官方的Windows平臺安裝程式一樣在安裝時往登錄檔中寫入相關資訊。同時,一些工具的安裝或執行需要讀取登錄檔中的Python資訊,比如mlpy的安裝程式。我安裝適用於Python 2.7的mlpy-3.5.0.win32-py2.7.exe時就因為"Python version 2.7 required, which was not found in the registry."未讀取到登錄檔中的Python資訊而失敗,所以需要先配置window註冊資訊,細節如下:

    將下面的程式碼複製並儲存為一個Python檔案(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" #更換成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()
然後在在win7命令列中執行:
python 檔案路徑/registerpython.py #WinPython安裝得到的python需要配置環境變數

 

    這樣就成功向登錄檔中寫入了相關Python安裝資訊。

2、安裝 BeautifulSoup (解析和分類網頁)

    首先下載 BeautifulSoup原始碼,其官網為:http://www.crummy.com/software/BeautifulSoup/。
    然後解壓後執行以下命令:


出現下面即表示BeautifulSoup安裝成功。

3、安裝NeuroLab

NeuroLab是用Python編寫的神經網路庫。下面的頁面下載Neurolab(http://code.google.com/p/neurolab/downloads/list地址因為谷歌被禁不能訪問

):

解壓後我用命令列執行如下命令一直未能成功:


改為使用WinPython自帶的WinPython Control Panel進行安裝,直接用WinPython Control Panel讀取未解壓前的NeuroLab檔案,即可安裝完畢,同時在python安裝目錄的Python27\Lib\site-packages下,就可以看到neurolab的資料夾。