python - how to separate words into different increasing letter combinations

Question

I want to slice a word inside a list and print it into separate parts. so if my word is pink and hello then how can I get the results.

word = [pink]
return [p,  pi, pin, pink]

word2 = [hello]
return [h, he, hel, hell, hello]

question from:https://stackoverflow.com/questions/65952461/how-to-separate-words-into-different-increasing-letter-combinations

Answer 1

What you want is the different prefixes of a word

def prefixes(word):
    return [word[:i + 1] for i in range(len(word))]

print(prefixes("hello"))  # ['h', 'he', 'hel', 'hell', 'hello']
print(prefixes("pink"))   # ['p', 'pi', 'pin', 'pink']