Fontrenderer from Regnancy

#!/usr/bin/python
# -*- coding: utf-8 -*-

import pygame


def blurSurf(surface, amt):
    scale = 1.0 / float(amt)
    surf_size = surface.get_size()
    scale_size = (int(surf_size[0] * scale), int(surf_size[1] * scale))
    surf = pygame.transform.smoothscale(surface, scale_size)
    surf = pygame.transform.smoothscale(surf, surf_size)
    return surf


class Fontrenderer(object):

    def __init__(self):
        self.s_c = {}
        self.c = {}

    def render(self, font, text, color, surf, pos):

        if not (font, text, str(color)) in self.s_c.keys():
            (self.s_c)[(font, text, str(color))] = blurSurf(font.render(text.decode('utf-8'),
                    True, (0, 0, 0)), 1.6)

        ss = (self.s_c)[(font, text, str(color))]
        surf.blit(ss, (pos[0] + 1, pos[1] + 2))

        if not (font, text, str(color)) in self.c.keys():
            (self.c)[(font, text, str(color))] = font.render(text.decode('utf-8'),
                    True, color)

        s = (self.c)[(font, text, str(color))]
        surf.blit(s, pos)