Make my codes more simple,

[Codebringer]

Hi,
Is there a way to write my code more simple, more readable, cleaner. I need all the help I can get. Im headed to germany for a famillie reunion and my flight departs within a few hours, i will be back online as soon as i can get a connection.

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import csv   def read():     a = open("casus.csv", "r")     areader = csv.reader(a)     list_to_order = []     reversed_list = []     print("score:   team:\n")     for row in areader:         if len(row)!=0:             temp_list = []             temp_list.append(int(row[1]))             temp_list.append(row[0])             list_to_order.append(temp_list)     list_to_order.sort()     length = len(list_to_order)     for i in range (length):         reversed_list.append(list_to_order[length-1-i])     for row in reversed_list:         print (str (row[0])+"      "+row[1])     input("\n press button to go back to menu")     menu()   def add():     team = input("team: ")     score = input("score: ")       a = open('casus.csv','a')     awriter = csv.writer(a)     awriter.writerow([team,score])     a.close()     menu()   def menu():     answer = input("\n################MENU################\npress 1 to add a team with the scores."                      "\npress 2 to generate a ranking list\n press 3 to close.  ")       if answer == "1":         add()     elif answer == "2":         read()     elif answer == "3":         exit() menu()

[Gribouillis]

Hi! here is how to make the read part better

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def items_to_order(filename):     with open(filename, 'r') as infile:         for row in csv.reader(infile):             if len(row):                 yield (int(row[1]), row[0])    def read():     print("score:   team:\n")     list_to_order = sorted(items_to_order('casus.csv'))     for row in reversed(list_to_order):         print("{}      {}".format(*row))     input("\n press button to go back to menu")     menu()

[wavic]

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import csv    def read():     with open("casus.csv", "r") as a:         areader = csv.reader(a)         list_to_order = []         reversed_list = []         print("score:   team:\n")           for row in areader:             if len(row)!=0:                 temp_list = []                 temp_list.append(int(row[1]))                 temp_list.append(row[0])                 list_to_order.append(temp_list)           list_to_order.sort()         length = len(list_to_order)           # for i in range (length):         #     reversed_list.append(list_to_order[length-1-i])                   # you can use reversed function here: for row in reversed(list_to_order):         for row in reversed(list_to_order):             print (str (row[0])+"      "+row[1])           input("\n press button to go back to menu")         menu()    def add():     team = input("team: ")     score = input("score: ")        with open('casus.csv','a') as a:         awriter = csv.writer(a)         awriter.writerow([team,score])     # a.close() this is not needed because with statement closed the file automaticaly when the its block of code is executed       menu()    def menu():     print("""\n################MENU################               press 1 to add a team with the scores.               press 2 to generate a ranking list               press 3 to close.\n""")       answer = input()           # since the function are first class objects they can be assigned as regular values     action = {"1": add, "2": read, "3": exit}       action[answer]{} # call the function coresponding to the answer     # if answer == "1":     #     add()     # elif answer == "2":     #     read()     # elif answer == "3":     #     exit()   menu()

[buran]

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import csv   def read():     with open("casus.csv", "r") as f:         areader = csv.DictReader(f)         print('\t'.join(areader.fieldnames))         str_templ = '{{{}}}'.format('}\t{'.join(areader.fieldnames))         for row in sorted(areader, reverse=True):             if row:                 print(str_templ.format(**row))    def add():     fields = ['team', 'score']     user_input = {key:input('{}: '.format(key)) for key in fields}     with open('casus.csv','a', newline='') as f:         awriter = csv.DictWriter(f, fieldnames=fields, restval='')         awriter.writerow(user_input)         def menu():     menu_items = {'1':add, '2':read}     while True:         user_choice = input("\n################MENU################\npress 1 to add a team with the scores."                      "\npress 2 to generate a ranking list\npress 3 to close.\n\n>>")         try:             menu_items[user_choice]()         except KeyError:             if user_choice == '3':                 break             else:                 print("This is not a valid choice!\n\n")   if __name__ =='__main__':     menu()