import os
import jinja2
import webapp2
#http://jinja.pocoo.org/

template_dir = os.path.join(os.path.dirname(__file__),'templates')
jinja_env = jinja2.Environment(loader = jinja2.FileSystemLoader(template_dir),autoescape=True)






class Handler(webapp2.RequestHandler):
	def write(self,*a,**kw):
		self.response.out.write(*a,**kw)

	def render_str(self,template,**params):
		t=jinja_env.get_template(template)
		return t.render(params)

	def render(self,template,**kw):
		self.write(self.render_str(template,**kw))

class MainPage(Handler):
	def get(self):
		n=self.request.get('n')
		if n:
			n=int(n)
		self.render("squares.html",n=n)
		



app=webapp2.WSGIApplication([('/',MainPage),],debug=True)