Morse - Python

import sys
import math

lineMorse =""
dictionary=[]

alphabet = {
  "a":".-", "b":"-...", "c":"-.-.", "d":"-..", "e":".", "f":"..-.", "g":"--.", "h":"....",
  "i":"..", "j":".---", "k":"-.-", "l":".-..", "m":"--", "n":"-.", "o":"---", "p":".--.",
  "q":"--.-", "r":".-.", "s":"...", "t":"-", "u":"..-", "v":"...-", "w":".--", "x":"-..-",
  "y":"-.--", "z":"--.."
}

def convertWordToMorse(word):
    wordMorse=""
    for letter in word:
        wordMorse += alphabet[letter.lower()]
    return wordMorse


def getLineMorse():
    while True:
        morse = input()
        if len(morse) > 0 and len(morse) < 10000:
            return morse
            

def getDictionary():
    while True:
        num = int(input()) 
        
        if num < 0 or num > 10000:
            return

        dictionary = []
        cont = 0

        while cont < num:
            word = str(input())
            if len(word) > 0 and len(word) < 20:
                if word not in  dictionary:
                    dictionary.append(word)
                    cont+=1

        return dictionary


def convertListToMorse(dictionary):
    list = []
    for word in dictionary:
        list.append(convertWordToMorse(word))
    return list


def numberOfMatches(lineMorse,dictionary):
    cont=0
    for word in dictionary:
        if  lineMorse.find(word) == 0:
            cont+=1
    return cont


#EJECUCION

lineMorse = getLineMorse()
dictionary = getDictionary()

dictionaryMorse = convertListToMorse(dictionary)
matches = numberOfMatches(lineMorse, dictionaryMorse)

print(matches)