I need to plot a graph with that 2 columns from the CSV file. If the name of the Author is duplicated, only get one and their average rating. (distinct).

Code in Python, please

A B D E F 1 User Rating 2 4.7 3 4 5 6 7 8 9 10 11 12 4.6 4.7 4.7 4.8 4.4 4.7 4.7 4.7 4.6 4.6 4.6 4.6 4.5 4.6 4.5 4.6 4.4 4.5 4.8 4.6 13 14 15 16 17 18 19 20 21 22 23 4.6 3.9 4.6 Author JJ Smith Stephen King Jordan B. Peterson George Orwell National Geographic Kids George R. R. Martin George R. R. Martin Amor Towles James Comey Fredrik Backman Fredrik Backman Larry Schweikart Jaycee Dugard Madeleine L'Engle Steve Harvey Adult Coloring Book Designs Blue Star Coloring Blue Star Coloring Coloring Books for Adults Ron Chernow Anthony Doerr Anthony Doerr Veronica Roth Chris Kyle Khaled Hosseini Glenn Beck Neil deGrasse Tyson Mark Twain DK Angie Grace Ina Garten Ina Garten Michelle Obama Michelle Obama Atul Gawande Ta-Nehisi Coates Ta-Nehisi Coates Bruce Springsteen Stephenie Meyer Glenn Beck Bill Martin Jr. Bill Martin Jr. Jeff Kinney Sasha O'Hara David Goggins Thomas Piketty Suzanne Collins Suzanne Collins booksellers + 4.3 4.6 4.7 4.2 4.6 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 4.6 4.8 4.7 4.8 41 4.8 4.8 4.7 4.7 4.7 4.6 4.5 4.9 4.9 4.8 4.6 4.8 4.5 42 43 44 45 46 47 48 49 4.7 4.7