If you are trying to delete this lines from the file, try this:
import os
def removeUrl(url):
url_file = "url.txt"
fileIn = open(url_file, 'r')
fileOut = open("temp.txt", 'w')
for line in fileIn:
if url not in line:
fileOut.write(line)
fileIn.close()
fileOut.close()
os.remove(url_file)
os.rename("temp.txt", url_file)
removeUrl("www.youtube.com")
solved python – history file