David,
I do not know why, but when I remove the "print", it works. :)
I'm thinking to use the gae-sessions in a Rest API to validate users,
do you think is a good idea?
def main(request):
counter = request.session.get('counter', 0)
request.session['counter'] = counter + 1
#print request.session['counter']
return HttpResponse(request.session['counter'])
Thanks.