Download entire web pages and save them as html file with urllib.request

[fyec]

I can save multiple web pages with using these codes; however, I cant see a proper website view after saving them as html. For example, the texts in table are slipped and images can't be seen. I need to download entire pages just as we do save as in any web browser so that I can see a proper view.

import urllib.request

url= 'https://asd.com/asdID='
for i in range(1, 5):
    print('     --> ID:', i)
    newurl = url + str(i)
    f = open(str(i)+'.html', 'w')
    page = urllib.request.urlopen(newurl)
    pagetext = str(page.read())
    f.write(pagetext)
    f.close()