The Requests package isn't part of Python's standard library. Our primary library for downloading data and files from the Web will be Requests, dubbed "HTTP for Humans". Returning to our previous code snippet, let's assign the result of the
Compares fromlines and tolines (lists of strings) and returns a string which is a complete HTML file containing a table showing line by line differences with inter-line and intra-line changes highlighted. fromdesc and todesc are optional keyword arguments to specify from/to file column header strings (both default to an empty string).