parseNum.py

d = { v: i for i, v in enumerate('zero one two three four five six seven eight nine ten eleven twelve thirteen'.split())}
d.update({v+'teen': i+10 for v, i in d.items() if 3 < i < 10})
d.update({'fifteen': 15, 'eighteen': 18})
d.update({v: (i+2)*10 for i, v in enumerate('twenty thirty forty fifty sixty seventy eighty ninety'.split())})

def parse_int(s):
    if 'million' in s: return 1E6
    s = s.replace('thousand', '|').replace('and ', '').replace('-', ' ').replace('hundred', '-')
    keys =[[sum([ d[k] for k in x.strip().split()]) for x in a.split('-')[::-1]] for a in s.split('|')[::-1]]
    return sum([sum([100**j*1000**i*a for j, a in enumerate(b)]) for i, b in enumerate(keys)])