Appending data in csv file problems

Question

def append(new)
     user_file = open(r'users.csv', "a", newline = '')
     writer = csv.writer(user_file)
     writer.writerows(new)


#create a user list[... , ...]
append(user)

I tried to append rows in CSV file, and I can have the correct data in my list. However, the data in my CSV file has something wrong.

My original contents in CSV file:

admin, abcd
user1, qwer

I expect that my CSV file after running should like this:

admin, abcd
user1, qwer
appenduser, appendpassword

However, after running my program, my CSV file append like this:

admin, abcd
user1, qwer

a,p,p,e,n,d,u,s,e,r
a,p,p,e,n,d,p,a,s,s,w,o,r,d

What should I do in order to solve my problem? Appreciate for helps!

Answer 1

Use writerow

Ex:

def append(new):
     user_file = open(r'users.csv', "a", newline = '')
     writer = csv.writer(user_file)
     writer.writerow(new)    

#create a user list[... , ...]
append(user)