tomasn4a

import math

def distance(str):
  li_str = list(str)
  result = 0
  for i in range(1,len(li_str)):
    row_prev = get_row(li_str[i-1])
    col_prev = get_col(li_str[i-1])
    row = get_row(li_str[i])
    col = get_col(li_str[i])

tomasn4a

try:
    import urllib.parse  # Python 3
except ImportError:
    from urllib2 import urlopen  # Python 2

import os
import re
import tempfile
from contextlib import contextmanager
import six