01-cconsonant-count.py

'''
Write a function that given a string, counts total number of consonants in it. 
A consonant is a English alphabet character that is not vowel (a, e, i, o and u). 
Examples of constants are b, c, d, f, g, ..
input will never have spaces or non letter characters

Examples: 

Input: 'snakes'
Output: 4

Input: 'SpamAndEggs'
Output: 8
'''