（一）安装Scrapy库出现的问题及解决方法

1）安装pywin32

下载网址为：
https://sourceforge.net/projects/pywin32/files/pywin32/Build%20220/
（选择符合电脑上已安装python的位数的版本，可通过打开IDLE来查看）
运行.exe文件，可能会有如下提示：

Python version 3.6-32 required, which was not found in the registry.

原因是安装程序没有找到python注册表，先写用idle运行脚本程序将python写入注册表，代码如下：

#python3使用下列代码import sysfrom winreg import *# tweak as necessaryversion = sys.version[:3]installpath = sys.prefixregpath = "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() 

#python2使用下列代码import sysfrom _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():    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()

写入注册表后，按下win+r，输入regedit打开注册表编辑器，按此目录找到文件夹:

右键点击3.6，重命名为3.6-32。
再运行pywin32的安装文件，点击下一步，完成pywin32安装。

2）安装zope.interface

下载网址为：
https://pypi.python.org/pypi/zope.interface/4.4.3#downloads

（例：python版本是3.6，下载cp36的wheel包）
将文件放在任意文件夹中，用管理员权限运行win控制台，进入该文件夹目录下，输入
pip install zope.interface-4.4.3-cp36-cp36m-win_amd64.whl
（后面键入对应的wheel包文件名）回车，完成zope.interface安装。

3）安装Twisted

下载网址：
http://www.lfd.uci.edu/~gohlke/pythonlibs/
在win控制台下进入该文件夹目录，输入
pip install Twisted‑17.9.0‑cp36‑cp36m‑win_amd64.whl
完成Twisted安装。

4）安装Scrapy

用管理员权限进入win控制台，输入pip install scrapy，完成Scrapy安装。