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)
Cet exercice fait partie du cours
Software Engineering Principles in Python
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de 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 ____