Python 3 - How to capitalize first letter of every sentence when translating from morse code

Question

I am trying to translate morse code into words and sentences and it all works fine... except for one thing. My entire output is lowercased and I want to be able to capitalize every first letter of every sentence.

This is my current code:

 text = input()
        if is_morse(text):
            lst = text.split(" ")
            text = ""
            for e in lst:
                text += TO_TEXT[e].lower()
            print(text)

Each element in the split list is equal to a character (but in morse) NOT a WORD. 'TO_TEXT' is a dictionary. Does anyone have a easy solution to this? I am a beginner in programming and Python btw, so I might not understand some solutions...

Answer 1

Maintain a flag telling you whether or not this is the first letter of a new sentence. Use that to decide whether the letter should be upper-case.

text = input()
if is_morse(text):
    lst = text.split(" ")
    text = ""
    first_letter = True
    for e in lst:
        if first_letter:
            this_letter = TO_TEXT[e].upper()
        else:
            this_letter = TO_TEXT[e].lower()

        # Period heralds a new sentence. 
        first_letter = this_letter == "."  

        text += this_letter
    print(text)