Question

This is a simple example of what I am trying to do.
Say, I have a random list which is the following:

aa = 1
b = 2
c = 3
ao = 4
uw = 5
d = 6 
ih = 7

I give the input to the program as:

b d aa aw ay c

In the input there are strings which don’t have values and are not present in the list like ‘aw’ and ‘ay’. So, I have to change them into the strings which are present in the list. But the problem is, ‘aw’ and ‘ay’ are the combination of two strings. For example, I have to change ‘aw’ as ao + uw and ‘ay’ as ao + ih and form a list. So the new list of the input should be like,

b
d
aa
ao
uw
ao
ih
c

And the final output should be their corresponding values which is,

2 6 1 4 5 4 7 3  

I could not write this in code. Could someone help please? Thank you.

Answer 1

How about …

str_converter = {'aa': 1, 'b':2, 'c':3, 'ao': 4, 'uw':5, 'd':6, 'ih':7}
pre_converter = {'aw': ['ao', 'uw'], 'ay': ['ao', 'ih']}

input = ['b', 'd', 'aa', 'aw', 'ay', 'c']

work_list = []

for in_string in input:
    converted_str = pre_converter.get(in_string)
    if converted_str is None:
        work_list.append(in_string)
    else:
        work_list.extend(converted_str)

for work_string in work_list:
    print str_converter.get(work_string)