Upload handlers provide no way to retrieve previously parsed POST variables
In a custom Django upload handler like the one here, it is impossible to get other POST variables sent along with the multipart request until the handler has completed the upload entirely. Often, it'd be nice to be able to grab the variables as they're parsed to do something with them. Essentially, a method should be added to django.core.files.uploadhandler.FileUploadHandler called something like "variable_complete" which would provide the name and content type of each non-file variable passed with the multipart request:
def variable_complete(self, variable_name, variable_value):
Called after a POST variable has been successfully parsed from the multipart request.
This would save me the trouble of manually having to parse the multipart request myself in "handle_raw_input".