String operations
Now that you can load the text data into bags, it is time to actually do something with it. To detect how positive or negative the reviews are, you will start by counting some keywords.
The bag you created in the last exercise, review_bag, is available in your environment.
This exercise is part of the course
Parallel Programming with Dask in Python
Exercise instructions
- Use the
.lower()method ofreview_bag's string accessor to convert each review to lower case. - Use the
.count()method of the string accessor to count how many times the word'excellent'appears in each review. - Print 10 values of
excellent_counts.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Convert all of the reviews to lower case
lowercase_reviews = review_bag.____
# Count the number of times 'excellent' appears in each review
excellent_counts = lowercase_reviews.____
# Print the first 10 counts of 'excellent'
print(____)