Binance client object has no attribute

Object has no attribute ‘entry_set’ error

I’m new to Python, trying to work through Python Crash Course and I’ve run into a problem that I can’t figure out. Here’s my error:

‘Pizza’ object has no attribute ‘entry_set’

In my model I have the foreign key defined to Pizza in Toppings and it works fine, but I apparently don’t understand the entry_set definition.

Here’s my URL code:

Here’s my view code (as you can see, I have the entry_set ):

And lastly, my HTML code:

Here’s the models.py:

Thank you in advance!

3 Answers 3

The Pizza and Topping model have a Many-to-One relationship. That is what a «ForeignKey» relationship is. There are two different tables (among many others) in your database. One for Pizza and one for Toppings. What a ForeignKey relationship does is put a column in your Topping table that points to a row in your Pizza table. It is a way to associate the entries in those tables to each other.

If you have Topping instance:

will return the pizza.

What you’re asking about is how to go the other way. To have a pizza instance and then get the toppings. To get all of the rows in your Toppings table with a Pizza column that points to an instance of Pizza.

There is something in Django called a related_name you can define it as such:

with that you can then do this:

to return all the toppings on afternoon_pizza. The default related_name is the ‘name_of_your_model’ + ‘_set’. So without the above modification you could get the same results with:

My best guess is that the example in your book has a field that is called «entry».

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Как убрать ошибки»AttributeError: ‘coroutine’ object has no attribute ‘content'» и «AttributeError: ‘Message’ object has no attribute ‘user’»?

пишу бота на дискорде и он мне такую вот ошибочку выдаёт:

File «C:\Users\nasty\Desktop\discord\test.py», line 21, in gdz
your_class = message_response.content
AttributeError: ‘coroutine’ object has no attribute ‘content’

File «C:\Users\nasty\Desktop\discord\test.py», line 20, in
message_response = client.wait_for(‘message’, check=lambda m: m.user == ctx.user)
AttributeError: ‘Message’ object has no attribute ‘user’

• Вопрос задан 18 июл. 2020
• 1143 просмотра

A Member that sent the message. If channel is a private channel or the user has the left the guild, then it is a User instead.

На счет первой ошибки, согласно опять же доке, метод client.wait_for возвращает строку, а следовательно никакого content у него быть не может. Но в твоем случае ошибка также в том, что не указано await перед сопрограммой (coroutine), которым является метод client.wait_for

Поправка: client.wait_for возвращает не строку, а аргумент или tuple с аргументами listener’а (в случае listener’а on_message это объект сообщения)

Собственное событие с чем угодно будет возвращать это самое что угодно

Проблема в вопросе была связана не с типом объекта возвращаемым функцией wait_for, а тем, что функция wait_for — «сопрограмма» (coroutine), и должна была «ожидаться» (await).

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Что делать если при запуске программы выдает ошибку AttributeError: ‘CallbackQuery’ object has no attribute ‘chat’?

Я запускаю программу:

После того как я нажимаю на кнопку выводит ошибку(полный ее код):
Traceback (most recent call last):
File «main.py», line 26, in
bot.polling(none_stop=True)
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 415, in polling
self.__threaded_polling(none_stop, interval, timeout)
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 438, in __threaded_polling
polling_thread.raise_exceptions()
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/util.py», line 81, in raise_exceptions
six.reraise(self.exc_info[0], self.exc_info[1], self.exc_info[2])
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/six.py», line 703, in reraise
raise value
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/util.py», line 62, in run
task(*args, **kwargs)
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 282, in __retrieve_updates
self.process_new_updates(updates)
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 337, in process_new_updates
self.process_new_callback_query(new_callback_querys)
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 367, in process_new_callback_query
self._notify_command_handlers(self.callback_query_handlers, new_callback_querys)
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 1907, in _notify_command_handlers
if self._test_message_handler(message_handler, message):
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 1875, in _test_message_handler
if not self._test_filter(message_filter, filter_value, message):
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 1896, in _test_filter
return test_cases.get(message_filter, lambda msg: False)(message)
File «/opt/virtualenvs/python3/lib/python3.8/site-packages/telebot/__init__.py», line 1893, in
‘func’: lambda msg: filter_value(msg)
File «main.py», line 18, in tech
bot.send_message(gg.chat.id, «Choose a brand», reply_markup=kb)
AttributeError: ‘CallbackQuery’ object has no attribute ‘chat’

Python версии 3.8.2, библиотека pyTelegramBotApi стоит нормально

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AttributeError: ‘module’ object has no attribute

I have two python modules:

When I run a.py , I get:

What does the error mean? How do I fix it?

16 Answers 16

You have mutual top-level imports, which is almost always a bad idea.

If you really must have mutual imports in Python, the way to do it is to import them within a function:

Now a.py can safely do import b without causing problems.

(At first glance it might appear that cause_a_to_do_something() would be hugely inefficient because it does an import every time you call it, but in fact the import work only gets done the first time. The second and subsequent times you import a module, it’s a quick operation.)

I have also seen this error when inadvertently naming a module with the same name as one of the standard Python modules. E.g. I had a module called commands which is also a Python library module. This proved to be difficult to track down as it worked correctly on my local development environment but failed with the specified error when running on Google App Engine.

The problem is the circular dependency between the modules. a imports b and b imports a . But one of them needs to be loaded first — in this case python ends up initializing module a before b and b.hi() doesn’t exist yet when you try to access it in a .

I got this error by referencing an enum which was imported in a wrong way, e.g.:

Hope that helps someone

I faced the same issue. fixed by using reload .

I experienced this error because the module was not actually imported. The code looked like this:

The last line resulted in an AttributeError . The cause was that I had failed to notice that the submodules of a ( a.b and a.c ) were explicitly imported, and assumed that the import statement actually imported a .

I ran into this problem when I checked out an older version of a repository from git. Git replaced my .py files, but left the untracked .pyc files. Since the .py files and .pyc files were out of sync, the import command in a .py file could not find the corresponding module in the .pyc files.

The solution was simply to delete the .pyc files, and let them be automatically regenerated.

on ubuntu 18.04 ( virtualenv, python.3.6.x), the following reload snippet solved the problem for me:

main.py

for more documentation check : here

All the above answers are great, but I’d like to chime in here. If you did not spot any issue mentioned above, try clear up your working environment. It worked for me.

For me, the reason for this error was that there was a folder with the same name as the python module I was trying to import.

And python treated that folder as a python package and tried to import from that empty package «core», not from core.py.

Seems like for some reason git left that empty folder during the branches switch

So I just removed that folder and everything worked like a charm

Not sure how but the below change sorted my issue:

i was having the name of file and import name same for eg i had file name as emoji.py and i was trying to import emoji. But changing the name of file solved the issue .

Hope so it helps

Circular imports cause problems, but Python has ways to mitigate it built-in.

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AttributeError: ‘UUID’ object has no attribute ‘replace’ when using backend-agnostic GUID type

I want to have a primary key id with type uuid in a Postgresql database using SQLAlchemy 1.1.5, connecting to the database with the pg8000 adapter. I used the Backend-agnostic GUID Type recipe from the SQLAlchemy documentation.

When I want to insert into the database, I get the following error

my model looks like this

My resource or controller looks like this

5 Answers 5

The pg8000 PostgreSQL database adapter is returning a uuid.UUID() object (see their type mapping documentation, and SQLAlchemy has passed that to the TypeDecorator.process_result_value() method.

The implementation given in the documentation expected a string, however, so this fails:

The quick work-around is to force the value to be a string anyway:

or you can test for the type first:

I’ve submited pull request #403 to fix this in the documentation (since merged).

This should fix it:

«If you want to pass a UUID() object, the as_uuid flag must be set to True.»

This can be fairly frustrating when using UUIDs across a system. Under certain conditions, it might be difficult to control whether a UUID comes in as a string, or as a raw UUID. To work around this, a solution like this might work. I’ve attached the examples of the doc to make sure everything else still holds true.

Please use this your own discretion, this is just an example.

I was encountering the same problem and searched for two days before finding out that the code preceeding the error contained an error:

it was getting the following error, referring to an error in python and sqlalchemy

But it turned out that a process before this was sending the wrong object to my database function

Should be (note ‘product_id’)

Hence the uuid-string stored in product_id was actually a native python object ‘id’. Hence it tried to process the string to a uuid and it failed.

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