urlib - to use or not to use ( for web scraping )?

[Truman]

import os
import requests
from bs4 import BeautifulSoup

downloadDirectory = "downloaded"
baseUrl = "http://pythonscraping.com"

def getAbsoluteURL(baseUrl, source):
    if source.startswith("http://www."):
        url = "http://"+source[11:]
    elif source.startswith("http://"):
        url = source
    elif source.startswith("www."):
        url = source[4:]
        url = "http://"+source
    else:
        url = baseUrl+"/"+source
    if baseUrl not in url:
        return None
    return url 
	
def getDownloadPath(baseUrl, absoluteUrl, downloadDirectory):
    path = absoluteUrl.replace("www.", "")
    path = path.replace(baseUrl, "")
    path = downloadDirectory+path
    directory = os.path.dirname(path)
    if not os.path.exists(directory):
        os.makedirs(directory)
    return path


html = requests.get("http://www.pythonscraping.com")
bsObj = BeautifulSoup(html.content, 'html.parser')
downloadList = bsObj.find_all('img')

for download in downloadList:
    fileUrl = getAbsoluteURL(baseUrl,download["src"])
    if fileUrl is not None:
        print(fileUrl)
    r = requests.get(fileUrl, allow_redirects=True)
    filename = fileUrl.split('/')[-1]
    with open(filename, 'wb') as out_file:
        out_file.write(r.content)

I made some correction in last 10 lines but the problem is now that it completely ommits folder 'downloaded' and getDownloadPath function.