List upload: add organism  #19

I am currently trying to create lists with Python, so not by uploading them here, and I am facing the following issue, that is, I lose genes along the way. I found the problem by copying and pasting manually my list in this two pages:
-http://www.humanmine.org/humanmine/begin.do
-http://www.humanmine.org/humanmine/bag.do?subtab=upload
In the first page, I get only a few genes automatically when I create a human list, and I should select the other manually, because it also wants to give me genes from M. musculus and R. norvegicus. In Python everything is automatic and so I do not select and lose the genes, getting a list with few genes.
In the second page, I get the proper list because I can select the organism (H. Sapiens) before submitting the list. Unfortunately, I do not seem to find a way to select the proper organism when creating a list with Python using .createlist().