This little script will download and install the most current BIOS version from the Dell download server

This is accomplished by scraping the site for the name of the computer system and following the link. There the script finds the table with the BIOS downloads and receives the top result.
The last step is executed in Powershell; via sendkeys the BIOS-Update is started and executed.

The Python 3.4 script uses robobrowser for the scraping, the exe was compiled by py2exe and is secure check here