I have just returned to this pset to try and get a 1 score (I have .92 already). I made my changes to the code but when I go through the steps to resubmit, I keep downloading a regular zip file and not the gzipped tarball referred to in the specs i.e. pset6.tar.gz isnt showing. Any ideas why this may be the case or whether submitting a zip file will get graded. Thanks.