import urllib.request
url="https://blog.csdn.net/weiwei_pig/article/details/51178226"
file=urllib.request.urlopen(url)

# url="https://blog.csdn.net/weiwei_pig/article/details/51178226"
# headers=("User-Agent","Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Mobile Safari/537.36")
# opener=urllib.request.build_opener()
# opener.addheaders=[headers]
# data=opener.open(url).read()
#
# fhandle=open("C:/mymodules/3.html","wb")
# fhandle.write(data)
# fhandle.close()

url="https://blog.csdn.net/weiwei_pig/article/details/51178226"
req=urllib.request.Request(url)
req.add_header("User-Agent","Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.80 Mobile Safari/537.36")
data1=urllib.request.urlopen(req).read()

fhandles=open("C:/mymodules/3-1.html","wb")
fhandles.write(data1)
fhandles.close()