1. rss_feed.py - core class file for rss_feed (separated into feed and items)

main.py

from rss_feed import Feed_Channel, Items

class Print_Out():

    def __init__(self, urls):
        self.urls = urls
        self.outputs = ""

    def print_out(self):

        for url in self.urls:
            feed_title = Feed_Channel(URL, "title")
            feed_description = Feed_Channel(URL, "description")
            items = Items(URL)

            # Print out feed title and description
            self.outputs += feed_title.printout()
            self.outputs += "\n"
            self.outputs +=feed_description.printout()
            self.outputs += "\n"

            # Print out all items
            self.outputs += items.printout()
            self.outputs += "\n"

URL = "http://tech.uzabase.com/rss"
# Can accept many urls by adding more urls in the array below
p = Print_Out([URL]) # This case is only 1 url
p.print_out() # Print out the output

# Can save to results.txt
with open('results.txt','w',encoding='utf8') as f:
    f.write(p.outputs)

rss_feed.py

import feedparser
import re

class Uzabase_RSS_Feed():
    def __init__(self, url):
        self.url = url
        self.feed = feedparser.parse(self.url) # Feed data
        self.items = self.feed["items"] # Items data

    # Exclude the word “NewsPicks” from sentence
    # return the sentence without "NewsPicks"
    def conversion(self, sentence):
        return re.sub("NewsPicks", "", sentence)

    def contains_newspick(self, sentence):
        return bool(re.search(r'\bNewsPicks\b', sentence))

class Feed_Channel(Uzabase_RSS_Feed):
    def __init__(self, url, attribute):
        Uzabase_RSS_Feed.__init__(self, url)
        self.attribute = attribute

        # check to make sure the attribute inserted is correct
        assert self.feed["channel"][attribute], "the attribute inserted is not correct"

        self.sentence = self.feed["channel"][attribute] # Data used for exclusion

    def printout(self):
        # check if contains "NewsPick" if so then output
        # the sentence
        output = ""
        if (self.contains_newspick(self.sentence)):
            conversed_sentence = self.conversion(self.sentence)
            output = "Feed channel " + self.attribute + " conversion = " + conversed_sentence
        else:
            output = "Feed channel " + self.attribute + " original = " + self.sentence

        print(output)
        return output

class Item(Uzabase_RSS_Feed):
    def __init__(self, index, item, url):
        Uzabase_RSS_Feed.__init__(self, url)
        self.index = index
        self.title = item["title"] # Take item title into consideration
        self.description = item["description"] # Take item description into consideration

    def printout(self):
        # check if contains "NewsPick" if so then output
        # the sentence
        title_output = ""
        description_output = ""

        # check title output
        if (self.contains_newspick(self.title)):
            conversed_sentence = self.conversion(self.title)
            title_output = "Item title " + str(self.index) + " conversion = " + conversed_sentence
        else:
            title_output = "Item title " + str(self.index) + " original = " + self.title

        # check title description
        if (self.contains_newspick(self.description)):
            conversed_sentence = self.conversion(self.description)
            description_output = "Item description " + str(self.index) + " conversion = " + conversed_sentence
        else:
            description_output = "Item description " + str(self.index) + " original = " + self.description

        output = title_output + "\n" + description_output
        print(output)
        return output

class Items(Uzabase_RSS_Feed):
    def __init__(self, url):
        Uzabase_RSS_Feed.__init__(self, url)

    def printout(self):
        # check if contains "NewsPick" if so then output
        # the sentence
        outputs = ""
        for i, item in enumerate(self.items):
            item_instace = Item(i, item, self.url)
            outputs += item_instace.printout()
            outputs += "\n"

        return outputs