import nltk
from nltk.book import *
import profile

def count_freq0(word_list):
    """
    Return a list giving pairs of form: (word,frequency)
    """
    L = []
    for new_word in word_list:
        for entry in L:
            if new_word == entry[0]:
                entry[1] = entry[1] + 1
                break
        else:
            L.append([new_word,1])
    return L

def count_freq(word_list):
    """
    Return a list giving pairs of form: (word,frequency)
    """
    D = {}
    for new_word in word_list:
        if D.has_key(new_word):
            D[new_word] = D[new_word]+1
        else:
            D[new_word] = 1
    return D.items()