#imports


import string
import secrets


#strings and variables


selection_list = string.ascii_letters + string.digits + string.punctuation

special_chars = string.punctuation


length = 29


#main code


from random import sample, choice

password = ''
for i in range(length):
    password+= ''. join(secrets.choice(selection_list))

#inputs
while True:

    platform = input("put the name of the platform here: ")
    login = input("put the email or usernamer here : ")

#printing and writing to file


    f = open("/home/matthies/Dokumente/pwords/passwörter.txt", "a")
    f.write(platform)
    f.write(" n")
    f.write(login)
    f.write(" n")
    f.write(password)
    f.write(" n")
    f.write(" n")      
    f.close()
    print(platform, login, password)
    if platform == "exit":
        break

it automatically creates a file with the platform’s name, the login data for example the email address and the password sorted in new lines.
Please give me some feedback and suggestions for the improvement of this program.