quiz_average.py

def loadScores(filename, scores):
    try:
        file = open(filename, "r")
        for line in file.readlines():
            parts = line.split("\t")
            username = parts[2]
            score = float(parts[3])
            if username in scores:
                theirScores = scores[username]
                theirScores.append(score)
            else:
                scores[username] = [score]
        file.close()
    except:
        print(f"Error importing {filename}. Skipping.")
        
def saveAverages(filename, scores):
    try:
        file = open(filename, "w") # This erases filename
        for userid in scores:
            studentScores = scores[userid]
            average = sum(studentScores) / len(studentScores)
            file.write(f"{userid}\t{average:.02f}\n")
        file.close()
    except Exception as e:
        print(f"Could not write to {filename}. Oops.")
        print(f"The exception said {e}")


# Read first file
scores = {}
loadScores("quiz1.txt", scores)
loadScores("quiz2.txt", scores)
loadScores("quiz3.txt", scores)
saveAverages("out.txt", scores)