Code Challenges on Basic Text Preprocessing Techniques

Challenge 1: Lowercasing text

We’ve imported the pandas library and loaded the feedback.csv dataset into feedback_df. The dataset contains feedback about a new product by a telecom company. The columns include the timestamp of the feedback, the username of the person providing the feedback, the feedback text itself, and a rating on a scale of 1 to 5 (where 1 is the lowest and 5 is the highest). Write code to convert the feedback column to lowercase.