How to write object's attributes in Python in .txt file

Question

I'm writing simpe OOP programm in Python. The task is to write object's attributes in txt file. I've tried numerous methods but every time I get AttributeError: 'Message' object has no attribute 'self'. I've been changing file.write(ms1.self.__id) numerous time but no one helped.

class Message:
def __init__(self, id=10000000, subject='Title', text='Sample Text ', created_at='11.11.11', seen_at='11.11.11', support_group='sample text'):
    self.__id = id
    self.__subject = subject
    self.__text = text
    self.__created_at  = created_at
    self.__seen_at = seen_at
    self.__support_group = support_group
ms1 = Message(5775575, 'Order Telephone', 'The order is: Iphone 12 Pro Max 512 gb ', 'Created at: 
30.03.20', 'Seen at: 01.04.20', 'Account: Kim2030 \n Tech: Eldorado \n Billing: 5169147129584558 \n 
Order: 28048')
file = open('testfile.txt', 'w')

file.write(ms1.self.__id)
file.write(ms1.self.__subject)
file.write(ms1.self.__text)
file.write(ms1.self.__created_at)
file.write(ms1.self.__seen_at)
file.write(ms1.self.__support_group)

file.close()

Just remove all those `self`s... `ms1.self.__id ==> ms1.__id` etc. — Tomerikoo, Nov 30 '20 at 16:11
Please edit to make sure that the code you posted reflects the *exact* indentation of your *actual* code. You need to add an *extra* four spaces in front of *each* line. You can do this easily by selecting the entire code block and pressing the `{}` button. — Karl Knechtel, Nov 30 '20 at 16:11
@Tomerikoo I've tried it but i get `'Message' object has no attribute '__id'` — MaybeYesMaybeNo, Nov 30 '20 at 16:15
Then please [edit] your question to include a ***working*** [mre] — Tomerikoo, Nov 30 '20 at 16:17

score 1 · Accepted Answer · edited Nov 30 '20 at 16:20

1

You're using the syntax slightly incorrectly. Remove the self references and don't use underscores for variable prefixes:

class Message:
    def __init__(self, id=10000000, subject='Title', text='Sample Text ', created_at='11.11.11', seen_at='11.11.11',
                 support_group='sample text'):
        self.id = id
        self.subject = subject
        self.text = text
        self.created_at = created_at
        self.seen_at = seen_at
        self.support_group = support_group

ms1 = Message(5775575, 'Order Telephone', 'The order is: Iphone 12 Pro Max 512 gb ', 'Created at:30.03.20', 'Seenat: 01.04.20', 'Account: Kim2030 \nTech: Eldorado \nBilling: 5169147129584558 \nOrder: 28048')
file = open('testfile.txt', 'w')

file.write(str(ms1.id))
file.write(ms1.subject)
file.write(ms1.text)
file.write(ms1.created_at)
file.write(ms1.seen_at)
file.write(ms1.support_group)

file.close()

edited Nov 30 '20 at 16:20

Tomerikoo

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answered Nov 30 '20 at 16:13

JBirdVegas

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I get error `'Message' object has no attribute 'id'` – MaybeYesMaybeNo Nov 30 '20 at 16:15
I don't get that error when I run the code above. The attribute `id` exists above – JBirdVegas Nov 30 '20 at 16:18
1

An answer that just fixes the problem without explaining the root cause is pretty unhelpful. Here's a full explanation of the reason this happens: https://stackoverflow.com/questions/1301346/what-is-the-meaning-of-single-and-double-underscore-before-an-object-name – Pranav Hosangadi Nov 30 '20 at 16:32

How to write object's attributes in Python in .txt file

1 Answers1