Please can you add in the documents for creating new payment module (http://www.satchmoproject.com/docs/svn/custom-payment.html) the following information which is presently missing.
After 'Url configuration' in the above mentioned page:
'Enabling the new module' Once the new payment module has been written and placed in the payments/modules folder, you need to inform satchmo about the new module that you have written. To do this, edit config.py in 'payments/' in satchmo and change _default_modules list. Add the new folder name of the newly created payment module in the list. After this is done, you can see your new payment module ready to work in settings page of admin area.
Reported by shakthi