In python

Write a function (in the Iab06.py file) named printTable to neatly print a table of the grades and associated grade-points in the customary order. First print column titles "grade" and "points" separated by a tab character ('\t'). Then loop through the grades in order, and print the grade, a tab character, and the associated grade-points. Here are the first few lines of an example run: > > > printTable() grade points A + 4.theta A 4. theta Save the file, and run the module again. Then test your function at the Python prompt to verify it works properly: it should print the entire set of grades (A + to F), in order and neatly with tabs separating the columns - just like the example above. Function to calculate grade-point average Switch roles between pilot and navigator. Write a function named gpa to calculate and return the grade-point average of a list of grades. The function header should look like this: def gpa(gradeList): And here is an example run: > > > myGrades = ['B+', 'A-', 'B', 'A'] > > > gpa(myGrades) 3.5 Write test cases Write a few more test cases - below the function definitions in the Iab06.py window - just like you did in the last couple of labs. For each test case: (a) create a list of valid grade strings; (b) print the gpa for this list. Use different lists of varying sizes and be sure to cover the full range of possible grades in your test cases