## in the view that renders the form
import urllib

user = request.user
payment = Payment.objects.create(who=user,payment_system='Dineromail')
return_url = urllib.quote('http://domain.com/return_url') #this where the user will return after finishing on Dineromail
cancel_url = urllib.quote('http://domain.com/cancel_url') #if something go wrong
dineromail_dict = {}
    
i = 1
for payment in mypaymentmodel: #we add our items
    dineromail_dict['item_currency_'+str(i)] = 'mxn' #mexican pesos
    dineromail_dict['item_quantity_'+str(i)] = '1' #one of this type
    dineromail_dict['item_name_'+str(i)] = payment.thingtopay
    dineromail_dict['item_ammount_'+str(i)] = payment.price
    dineromail_dict['item_code_'+str(i)] = payment.id
    i += 1
    
#all these fields you can check in this pdf https://mx.dineromail.com/content/Integración-MX.pdf
dineromail_dict['merchant'] = 1234578
dineromail_dict['NroItem'] = 'a unique string, unique per form 1323234wd'
dineromail_dict['ok_url'] = return_url+'?dineromail=True&total=23' #Pass any parameters(not sensitive) so your site can use them to display a relevant page'
dineromail_dict['error_url'] = cancel_url+'?dineromail=True&total=23'
dineromail_dict['pending_url'] = return_url+'?dineromail=True&total=23'
dineromail_dict['Mensaje'] = '0' #if you want the user to send us a message from dineromail
dineromail_dict['header_image'] = 'http://domain.com/static/images/logo.png' #your logo
dineromail_dict['payment_method_available'] = 'mx_oxxo;mx_7eleven' #see the pdf above
dineromail_dict['country_id'] = '4' #reference in the pdf
dineromail_dict['buyer_name'] = user.get_profile().first_name #your user data
dineromail_dict['buyer_lastname'] = user.get_profile().last_name
dineromail_dict['buyer_email'] = user.email 
dineromail_dict['buyer_phone'] = '555555555'
dineromail_dict['change_quantity'] = '0'
dineromail_dict['display_shipping'] = '0'
dineromail_dict['button_color'] = 'ff8f1f' #hex values
dineromail_dict['links_color'] = '000000'
dineromail_dict['font_color'] = '000000'
dineromail_dict['border_color'] = '000000'
dineromail_dict['display_additional_charge'] = '0'
context['dineromail'] = dineromail_dict
return render_to_response(template_name,context,context_instance=RequestContext(request))

#### In your template
<form.checkout action='https://checkout.dineromail.com/CheckOut' method='post' />
     {% for name,value in dineromail.items %}
        <input type='hidden' value='{{value}}' name='{{name}}'>
     {% endfor %}
     <input.pay type='submit' name='dineromail_submit' value='Paga en OXXO ó 7-Eleven'>
</form>