Why does the previous entry in a file get erased once the func is called again?

Question

I need help and am a beginner programmer, how are we meant to make sure that the previous function calls values are first saved to the txt and that the next time the function is called it writes on the next line?

def add_employee(name, id, date_joined, job):
    with open('employees.txt', 'w+') as txtfile:
        line = 'ID: {0} --- Name: {1} --- Date_Joined: {2} --- Job: {3}'.format(id, name, date_joined, job)
        txtfile.write(line)
    txtfile.close()

Does this answer your question? [How do you append to a file in Python?](https://stackoverflow.com/questions/4706499/how-do-you-append-to-a-file-in-python) — Axiumin_, Dec 21 '20 at 20:54
No need for `txtfile.close()`, the `with` statement will close it automatically at the end of the block. — Mark Ransom, Dec 21 '20 at 20:54

score 4 · Accepted Answer · answered Dec 21 '20 at 20:53

4

You have to open the file with "a" instead if "w+" for appending to the file.

answered Dec 21 '20 at 20:53

Donat

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Thanks but it now writes all the entries next to each other on one line, any way to make sure its on the next line? – Amen Dec 21 '20 at 20:55
@Amen: You can add a newline at the end of each line. – Donat Dec 21 '20 at 20:56
with '/n' it doesnt work – Amen Dec 21 '20 at 20:57
1

It's `\n`, with a backslash. – Carcigenicate Dec 21 '20 at 20:58

Why does the previous entry in a file get erased once the func is called again?

1 Answers1