Adding functionality to a child class
You've just written a SocialMedia
class that inherits functionality from Document
. As of now, the SocialMedia
class doesn't have any functionality different from Document
. In this exercise, you will build features into SocialMedia
to specialize it for use with Social Media data.
For reference, the definition of Document
can be seen below.
class Document:
# Initialize a new Document instance
def __init__(self, text):
self.text = text
# Pre tokenize the document with non-public tokenize method
self.tokens = self._tokenize()
# Pre tokenize the document with non-public count_words
self.word_counts = self._count_words()
def _tokenize(self):
return tokenize(self.text)
# Non-public method to tally document's word counts
def _count_words(self):
# Use collections.Counter to count the document's tokens
return Counter(self.tokens)
This exercise is part of the course
Software Engineering Principles in Python
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Define a SocialMedia class that is a child of the `Document class`
class SocialMedia(Document):
def __init__(self, text):
Document.__init__(self, text)
self.hashtag_counts = self._count_hashtags()
def _count_hashtags(self):
# Filter attribute so only words starting with '#' remain
return ____