96、python version 3.6 required,which was not fount in the registry（python3.6安裝scrapy）

在安裝scrapy時遇到問題

環境：win10(64位）， Python3.6（64位）

安裝scrapy：

1、安裝wheel（安裝後，便支持通過wheel文件安裝軟體）

pip3 install wheel

2、安裝lxml、pyopenssl

lxml：解析XML的庫，很強大，做爬蟲BS4,selenium,XPATH都會用到

pip3 install lxml
pip3 install pyopenssl

3、安裝pywin32

下載網址： https://sourceforge.net/projects/pywin32/files/pywin32/

根據自己python版本下載64位或32位（(註意：pywin32版本跟隨Python版本，即如果win是64位，但python是32位，pywin32要裝32位的，與win無關））

雙擊安裝（可能會遇到下列錯誤是註冊表問題）

安裝第三方庫出現Python version 3.6 required, which was not found in the registry錯誤解決

建立一個文件 register.py 內容如下. 然後執行該腳本. 

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()

4、下載twisted

下載twisted的wheel文件：http://www.lfd.uci.edu/~gohlke/pythonlibs/

pip3 install 下載目錄\Twisted-17.9.0-cp36-cp36m-win_amd64.whl

安裝可能會報錯

error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

說明電腦需要安裝visual C++ Build Tools 2015

5、安裝scrapy

pip3 install scrapy

6、大功告成

這是今天安裝scrapy時遇到的問題 明天會發一篇關於scrapy的詳細隨筆有興趣的可以關註