How to Download webpage as .mhtml - python-3.x

Question

I am able to successfully open a URL and save the resultant page as a .html file. However, I am unable to determine how to download and save a .mhtml (Web Page, Single File).
My code is:
import urllib.parse, time
from urllib.parse import urlparse
import urllib.request
url = ('https://www.example.com')
encoded_url = urllib.parse.quote(url, safe='')
print(encoded_url)
base_url = ("https://translate.google.co.uk/translate?sl=auto&tl=en&u=")
translation_url = base_url+encoded_url
print(translation_url)
req = urllib.request.Request(translation_url, headers={'User-Agent': 'Mozilla/6.0'})
print(req)
response = urllib.request.urlopen(req)
time.sleep(15)
print(response)
webContent = response.read()
print(webContent)
f = open('GoogleTranslated.html', 'wb')
f.write(webContent)
print(f)
f.close
I have tried to use wget using the details captured in this question:
How to download a webpage (mhtml format) using wget in python but the details are incomplete (or I am simply unabl eto understand).
Any suggestions would be helpful at this stage.

Answer 1

Did you try using Selenium with a Chrome Webdriver to save page?
import time
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.expected_conditions import visibility_of_element_located
from selenium.webdriver.support.ui import WebDriverWait
import pyautogui
URL = 'https://en.wikipedia.org/wiki/Python_(programming_language)'
FILE_NAME = ''
# open page with selenium
# (first need to download Chrome webdriver, or a firefox webdriver, etc)
driver = webdriver.Chrome()
driver.get(URL)
# wait until body is loaded
WebDriverWait(driver, 60).until(visibility_of_element_located((By.TAG_NAME, 'body')))
time.sleep(1)
# open 'Save as...' to save html and assets
pyautogui.hotkey('ctrl', 's')
time.sleep(1)
if FILE_NAME != '':
pyautogui.typewrite(FILE_NAME)
pyautogui.hotkey('enter')

Answer 2

I have a better solution, which will not involve any possible manual operation and specify the path to hold the mhtml file. I learn this from a chinese blog . The key idea is to use chrome-dev-tools command.
The code is shown below as an example.
from selenium import webdriver
driver = webdriver.Chrome()
driver.get('https://www.qq.com/')
# Execute Chrome dev tool command to obtain the mhtml file
res = driver.execute_cdp_cmd('Page.captureSnapshot', {})
# 2. write file locally
with open('./store/qq.mhtml', 'w', newline='') as f:
f.write(res['data'])
driver.quit()
Hope this will help!
more things about chrome dev protocols

Answer 3

save as mhtml, need to add argument '--save-page-as-mhtml'
options = webdriver.ChromeOptions()
options.add_argument('--save-page-as-mhtml')
driver = webdriver.Chrome(options=options)

Answer 4

I wrote it just the way it was. Sorry if it's wrong.
I created a class, so you can use it. The example is in the three lines below.
Also, you can change the number of seconds to sleep as you like.
Incidentally, non-English keyboards such as Japanese and Hangul keyboards are also supported.
import chromedriver_binary
from selenium import webdriver
import pyautogui
import pyperclip
import uuid
class DonwloadMhtml(webdriver.Chrome):
def __init__(self):
super().__init__()
self._first_save = True
time.sleep(2)
def save_page(self, url, filename=None):
self.get(url)
time.sleep(3)
# open 'Save as...' to save html and assets
pyautogui.hotkey('ctrl', 's')
time.sleep(1)
if filename is None:
pyperclip.copy(str(uuid.uuid4()))
else:
pyperclip.copy(filename)
time.sleep(1)
pyautogui.hotkey('ctrl', 'v')
time.sleep(2)
if self._first_save:
pyautogui.hotkey('tab')
time.sleep(1)
pyautogui.press('down')
time.sleep(1)
pyautogui.press('up')
time.sleep(1)
pyautogui.hotkey('enter')
time.sleep(1)
self._first_save = False
pyautogui.hotkey('enter')
time.sleep(1)
# example
dm = DonwloadMhtml()
dm.save_page('https://en.wikipedia.org/wiki/Python_(programming_language)', 'wikipedia_python') # create file named "wikipedia_python.mhtml"
dm.save_page('https://www.python.org/') # file named randomly based on uuid4
python3.8.10
selenium==4.4.3