piglatin.py

def is_consonant(char):
    return char not in "aeiouAEIOU"


def pigLatin(word):
    
    """
    Translate a single lowercase word to pig Latin.

    if w begins with a consonant, 
    move the leading consonant to the end of the word
    add 'ay' as a suffix
    if w begins with a vowel, 
    add 'yay' as a suffix

    'y' is a vowel; 'y' is not a consonant.

    Test data (you should add more):
    input: 'pig' output: 'igpay'
    input: 'eagerly' output: 'eagerlyyay'

    Params: w (string) a single lowercase English word (all alphabetic letters)
    Returns: (string) w in pig Latin
    """

    # INSERT YOUR CODE HERE, replacing 'pass'
    from collections import deque
    string_array = []

    # return initial str + "way" if it starts with vowel
    # if not - convert str to array
    if not is_consonant(word[0]):
         return word + "yay"
    else:
        # import pdb ; pdb.set_trace()
        string_array = list(word)

    while is_consonant(string_array[0]):
        val = string_array[0]
        string_array = string_array[1:]
        string_array.append(val)


    return "".join(string_array) + "ay";



print pigLatin('eagerly')