I receivng: name_file.txt I can’t find a way to get every record on a new line… like this: or better: Answer Update your save_data function like this. You need to format generate output string from database array before writing into file.

How to write in file records line by line? PYTHON

import random


def main():

    print('Program will create a trial database.')
    print()

    #polish names and surnames

    all_names = [name.rstrip() for name in open('names.txt', encoding='utf-8').readlines()]
    women_names = [name for name in all_names if name.endswith('a')]

    all_surnames = [name.rstrip() for name in open('surname.txt', encoding='utf-8').readlines()]

    women_surnames = [sname for sname in all_surnames if not sname.endswith('ski') and not 
                      sname.endswith('cki') and not sname.endswith('sny') and not 
                      sname.endswith('zki')]
  
    men_surnames = [sname for sname in all_surnames if not sname.endswith('ska') and not 
                    sname.endswith('cka') and not sname.endswith('zka') and not 
                    sname.endswith('sna')]

    cities = [city.rstrip() for city in open('cities.txt', encoding='utf-8').readlines()]

    def record():
        """Function creates records based on file input."""
        while True:
            try:
                num_records = int(input("Enter the number of records: "))
                break
            except ValueError:
                print('Invalid value! Try again...')
        
        database = []
        for i in range(1, num_records + 1):
            name_choice = random.choice(all_names)
            if name_choice in women_names: 
                sname_choice = random.choice(women_surnames)
            else:
                sname_choice = random.choice(men_surnames)
            city_choice = random.choice(cities)
            database.append([name_choice, sname_choice, city_choice])
    
    
        def save_data():
            name_file = input('Enter the name of the text file [name.txt]: ')
            data = open(name_file, 'w', encoding='utf=8')
            data.write(str(database))
            data.close()
            print(f'Records were create in the file: {name_file}.')
        save_data()
    record()
    


if __name__ == '__main__':
    main()

I receivng: name_file.txt

1.[[name, surname, city], [name1, surname1, city1], ...]
2.
3.

I can’t find a way to get every record on a new line… like this:

1. [name, surname, city],
2. [name1, surname1, city1],
3. [name2, surname2, city2],

or better:

1. name, surame, city
2. name1, surname1, city1
3. name2, surname2, city2

Answer

Update your save_data function like this. You need to format generate output string from database array before writing into file.

def save_data():
    name_file = input('Enter the name of the text file [name.txt]: ')
    data = open(name_file, 'w', encoding='utf=8')
    # generate formatted output
    output_str = "n".join(map(lambda s : ", ".join(s), database))
    # write formatted output
    data.write(output_str)
    data.close()
    print(f'Records were create in the file: {name_file}.')

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Answer