import string
s = string.ascii_lowercase
e = enumerate(s)
print s
print list(e)

abcdefghij
[(0, 'a'), (1, 'b'), (2, 'c'), (3, 'd'), (4, 'e'), (5, 'f'), (6, 'g'), (7, 'h'), (8, 'i'), (9, 'j')]

def read_line(line):
  sample = {}
  n = len(line)
  for i in range(n):
    if line[i]!='0':
      sample[i] = int(line[i])
  return sample

def xread_line(line):
  return((idx,int(val)) for idx, val in enumerate(line) if val != '0')
 
print read_line('0001110101')
print list(xread_line('0001110101'))