More on music/video file streaming
[edit|delete]Something like this should do it:
def get_my_file():
filename=request.args[0]
path=os.path.join(request.folder,'uploads',filename)
response.headers['ContentType'] ="application/octet-stream";
response.headers['Content-Disposition']="attachment; filename=" +filename
return response.stream(open(path),chunk_size=4096)