def getTok(txt) :
    """Takes a piece of text (a single string) as the argument.
    Returns a list of tokenized words.
    Punctuations are separated out, and upper case is lowered.
    """ 
    newtxt = txt.lower().replace(',', ' ,').replace('.', ' .')
    toklist = newtxt.split()
    return toklist

def getFreq(toks) :
    """Takes a list of items (such as string tokens) as the argument.
    Returns a frequency count dictionary.
    """
    # [1] YOUR CODE BELOW:
    freq = {}
    return freq

# Open gettysburg_address.txt for reading, and then assign
# the entire text content to a string variable named 'getty_text'.
# Then close your file. 
# [2] YOUR CODE BELOW:
getty_text = ''


# We now obtain a tokenized word list by feeding getty_text through getTok():
getty_toks = getTok(getty_text)

# Let's take a quick peek into the list by printing out the first 20 tokens:
print getty_toks[:20]

# We now obtain a word frequency dictionary by feeding getty_toks
# through getFreq():
getty_freq = getFreq(getty_toks)

# Let's try printing out the first 10 word frequency counts, in alph. order.
# [3] Uncomment the two lines below.
#for w in sorted(getty_freq)[:10] :
#    print w, getty_freq[w]

#-------------------------------------------------------------------------
# It's time to write the results out to a file.
# Open a file named 'Ex6.gettysburg.OUT.txt' for writing.
# Name the file object 'OUTF'
# [4] YOUR CODE BElOW:


# First, write out the basic text stats.
# [5] Uncomment the three lines. 
#OUTF.write('The text file has '+str(len(getty_toks))+' word tokens\n')
#OUTF.write('and '+str(len(getty_freq.keys()))+' unique word types.\n')
#OUTF.write('\n')


# Second, print to the file the top 10 most frequent words and their frequency
# counts. One per each line, in this order: word, a tab, and the integer.
# [6] Uncomment the following line, and write YOUR CODE BELOW.
#OUTF.write('The top ten most frequent words are:\n')


# Third, print to the file the top 10 longest words and their frequency counts.
# [7] Uncomment the following line, and write YOUR CODE BELOW.
#OUTF.write('\nThe top ten longest words are:\n')


# Finally, close your OUTF file object.
# [8] YOUR CODE BELOW: