Thank you both for your help and suggestions. PyPackager was generating the .dsc and .tar.gz source package, but thanks to the .changes file you provided sifo I was able to compare and find why the assistant was rejecting it. It had the md5 and pointed to the .deb file pypackager generated instead of the source.tar.gz. I manually edited that and it accepted it!

So it uploaded but failed. Any tips on troubleshooting it?
here's the link