#We've given you a file called "top500.txt" which contains #the name and lifetime gross revenue of the top 500 #films at the time this question was written. # #Each line of the given file is formatted like so: # \t # #In other words, you should call .split("\t") to split #the line into the movie name (the first item) and the #gross (the second item). # #Unfortunately, these movies are not in order. Write a #function called "sort_films" that accepts two parameters: #a string of a source filename and a string of a #destination filename. Your function should open the #source file and sort the contents from greatest gross #revenue to least gross revenue, and write the sorted #contents to the destination filename. You may assume the #source file is correctly formatted. # #Hint: one common issue on this problem is that every line #in the input file ends with a line break except the last #one. If the autograder gives you an index error, open #top500result. txt and make sure there are 500 lines in your #output file! #Write your function here!