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how do i add N4ID which contains 1 to N3ID which also contains it

my code

TL;DR: Interested in knowing if it's possible to use Abstract Base Classes as a mixin in the way I'd like to, or if my approach is fundamentally misguided.

I have a Flask project I've been working on. As part of my project, I've implemented a "RememberingDict" class. It's a simple subclass of dict, with a handful of extra features tacked on: it remembers its creation time, it knows how to pickle/save itself to a disk, and it knows how to open/unpickle itself from a disk:

I'm trying to learn Flask and use postgresql with it. I'm following this tutorial https://realpython.com/flask-by-example-part-2-postgres-sqlalchemy-and-alembic/, but I keep getting error.

This is my code: import numpy as np import cv2 import pickle

I have a custom tokenizer and want to use it for prediction in Production API. How do I save/download the tokenizer?

This is my code trying to save it:

What I'm trying to recreate

New to CSS+HTML and trying to practice my 'skills' which I have developed so far.

I've spent so many hours trying to get the text to align but it just will not.

Here's what i've had achieved so far

That in itself took ages just to figure out how to align the four cards like that. I still cannot figure out how to align this text though.

Here is my HTML:

I'm getting a "TypeError: a bytes-like object is required, not 'str'". I was using StringIO and I got an error "TypeError: initial_value must be str or None, not bytes" I'm using Python 3.7.

I've had a lot of issues with this application because I am simply not good enough yet, but I am almost done with it and just want to finish it so I can move on to some slightly lower level projects.

It is a tkinter to-do application.

You can add a Task to a listbox

For every Task, there are some associated attributes, among others: ````self.value = vandself.connectivity = c. The hierarchy of the tasks displayed in the listbox is determined by the value of val_var``` (e.g. the higher the value the higher on the list it will be displayed).

The Task and the associated attributes are determined by the user's input when one creates another task.

The Task is appended to a list task_list and after the user has added more than 1 task to the list, the next time one adds a task one will have the option to check existing tasks that it is connected with somehow.

The list is sorted so the task with the highest value (val_var) is displayed at the top of the Listbox and the task with the lowest value is displayed at the bottom of the Listbox. You can "Save tasks" and then launch the application at a later time where you can then "Load tasks".

Issue 1:

After loading tasks from a saved .dat file, it displays in the Listbox in the order it was saved in. However, if you now want to add another task at least two undesirable things happen:

1. The tasks now loaded into the Listbox are now not displayed as checkbuttons upon adding a new task.
2. When you add another task (again this is after loading the .dat file) the Listbox will delete what was just loaded and the Listbox will only display the newly added task.

I am somehow interested in being able to load the Tasks instances from the .dat file and then append them to the task_list so they are a part of the current session/instance of the application, but I don't know how one might do that.

Issue 2:

On a given session where tasks have been added to the Listbox, they can be deleted from the listbox using the "Delete task" button. The selected task in the Listbox is deleted, but it is not the same task that is deleted from the task_list.

To test what I mean by this one can add a couple of tasks to the Listbox and then delete one after doing so. Notice upon trying to create yet another new task that the one just deleted from the Listbox will still be shown as a checkbutton - however, another task that wasn't just deleted has now vanished as a checkbutton.

Any help with these issues will be sincerely appreciated.

Here's the code:

I'm trying to use the python multiprocessing module to run a server in another Thread using the http.server.BaseHTTPRequestHandler module. I am stuck though and am running into a '_thread.lock' issue.

I don't want to use the threading module because I'd rather use true multi-threading with the multi-processing module.

If anyone knows what I am doing incorrectly or can point me to a good library to use that would be awesome.