Look through a string for UK number plates with a space in the middle, and combine them into a single word (e.g. AB12 GHF -> AB12GHF, J586 GHH -> J586GHH)

gistfile1.py

def combinesplitregistrations(message):
 
    def contains_digits(s):
        return any(char.isdigit() for char in s)
 
    f = message
 
    words = message.split(" ")
 
    newwords = []
    totalwords = len(words)
 
    e = 0
    while e < totalwords:
        thisword = words[e]
 
        if len(thisword) < 5 and contains_digits(thisword) and e < (totalwords-1) and len(thisword[e+1]) < 4:
            e += 1
            newwords.append(thisword + words[e])
        else:
            newwords.append(words[e])
 
        e += 1
 
    return newwords