Solution to Problem 5 of PythonChallenge.com

python_challenge_05.py

#! /usr/bin/env python
# Using pickle to unpickle banner.p

import pickle 
from __future__ import print_function
from operator import add

def draw_segment(t):
	k, v = t
	return k * v

def draw_line(line):
	return reduce(add, map(draw_segment, line)) + '\n'

with open('banner.p', 'rb') as f:
	banner = pickle.load(f)

canvas = reduce(add, map(draw_line, banner))
print (canvas)