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Why can't I search through the dictionary I created (Python)?
from collections import defaultdict
import operator
def readFile(fileHandle):
    d = defaultdict(int)
    with open(fileHandle, "r") as myfile:
        for currline in myfile:
            for word in currline.split():
                d[word] +=1
    return d

def reverseLookup(dictionary, value):
    for key in dictionary.keys():
        if dictionary[key] == value:
            return key
    return None

afile = raw_input ("What is the absolute file path: ")
print readFile (afile)

choice = raw_input ("Would you like to (1) Query Word Count (2) Print top words to a new document     (3) Exit: ")
if (choice == "1"):
    query = raw_input ("What word would like to look up? ")
    print reverseLookup(readFile(afile), query)
if (choice == "2"):
    f = open("new.txt", "a")
    d = dict(int)
    for w in text.split():
        d[w] += 1
    f.write(d)
    file.close (f)
if (choice == "3"):
    print "The EXIT has HAPPENED"
else:
    print "Error"

from collections import defaultdict

def readFile(fileHandle):
    d = defaultdict(int)  # Access to undefined keys creates a entry with value 0
    with open(fileHandle, "r") as myfile:   # File will automatically be closed
        for currline in myfile:             # Loop through file line-by-line
            for word in currline.strip().split(): # Loop through words w/o CRLF
                d[word] +=1                 # Increase word counter
    return d

def reverseLookup(dictionary, value):
    for key in dictionary.keys():
        if dictionary[key] == value:
            return key
    return None

import operator
from collections import defaultdict

d = defaultdict(int)
numbers_dict = {}

def readFile(fileHandle):
    with open(fileHandle, "r") as myfile:
        for currline in myfile:
            for word in currline.split():
                d[word] +=1
    return d


def prepareReverse():
    for (k,v) in d.items():
        old_list = numbers_dict.get(v, [])
        new_list = old_list << k
        numbers_dict[v]=new_list

def reverseLookup(v):
    numbers_dict[v]