How can I check the first letter of each item in an array?

Question

I'm building a pig latin translator and I can't figure out how to identify the first letter of the entered words. I've converted the input to an array with each item being a new word, but how do I select each first letter of each item to determine if it's a consonant/vowel/etc.?

Solution 1

a = ['This', 'is', 'a', 'sentence']
for word in a:
    print(word[0])

Output:
T i a s

Solution 2

words = ['apple', 'bike', 'cow']

Use list comprehension, that is, building a list from the contents of another:

firsts = [w[0] for w in words]
firsts

Output

['a','b','c']