##Basic Frequency Analysis of a Text File
##
##Fill in the missing statements so that this script
##reads in an input text file, builds a frequency dict,
##displays the top 10 most frequent words with how many
##times they occur, and writes a tag cloud to an
##output html file
import os #useful for exiting the program if a file can't be opened
import string #can use the constant string.punctuation to clean up words
def count_words(line, freq_dict):
"""Process a string of text, adding the number of times each word
appears to a frequency dictionary"""
pass
def display_top_words(freq_dict, n):
"""displays the top n most frequent words in a frequency dictionary,
along with the number of times they appear"""
pass
def add_html_headers(body_text):
"""Adds header and footer around html body text
to make a complete html file."""
htm="""
""" + body_text + "
"
return htm
def make_html_word(word, font_size):
htm='' + word + ''
return htm
min_font = 5 # set the minimum font size for the output html file
def make_tag_cloud(freq_dict):
"""creates an html tag cloud from a frequency dictionary.
turns each word into an html word and then adds html headers.
returns a html page as a string."""
return "html string goes here"
####Example of using filedialog to prompt the user for a file
##from tkinter import filedialog
##filename = filedialog.askopenfilename()
##print(filename) # test
## Load input file
try:
text = open("Lecture_9_input.txt", 'r')
except IOError:
print("Can't open input file")
os._exit(1)
freq_dict = {}
## build frequency dictionary here
text.close()
## output top words
print("Number of distinct words:", len(freq_dict))
display_top_words(freq_dict, 10)
## create output file
out_file = open("output.htm", "w")
print(make_tag_cloud(freq_dict), file=out_file)
out_file.close()