solution:
questions_df = pd.read_csv("training_data.csv", sep=',', encoding='utf8')
Replaced
questions_df = pd.read_csv("training_data.csv", sep=',', encoding='unicode_escape')
solution:
questions_df = pd.read_csv("training_data.csv", sep=',', encoding='utf8')
Replaced
questions_df = pd.read_csv("training_data.csv", sep=',', encoding='unicode_escape')