How to concatenate two lists in python?
I have two lists and want to have a list that contaions all the items from the two lists. I know how to do...
What is OOP about?
I learned about the principles of encapsulation, abstraction, inheritance and polymorphism, and now I can ...
FileNotFoundError: [WinError 3] The system cannot find the path specified
I’m trying to rename a file with os.rename() in Python and I get this:
FileNotFoundError: [WinError 3] The...
Threading, asyncio, multiprocessing
What is the difference between threading, asyncio and multiprocessing libraries? I heard about all of them...
Zbar doesn't work
Hello! I’m trying to use ZBar with Python (I’m using pyzbar module for Python 3) to find barcodes and it d...
Private class methods in Python
I used to work with Java and there were private methods. Is there something like this in Python?
how to build a project management system
On Python, can someone help me with tips on how to build a system that takes the task of project assignmen...
What is the lambda function for?
Hi everyone. I recently learned in Python classes at a university what a lambda function is. But I don’t r...
Exec() function in Python
Why shouldn't I use the exec() function? I heard from fellow students that this is a very bad practice, bu...
How to download CSV file with results of computer vision model prediction from Python web app?
My computer vision model is deployed in the Django web application. It takes images as input and produces ...
C++ and Python for data science
I can see that some part of data science job positions requires knowledge of C++ as a programming language...
Why the need to use virtual environments?
In articles, people often describe how to set up a virtual environment for the project but without much ex...
URL parameters in Django get_queryset() function
I am developing a Django application. For one of my class-based views, I want to use "generic.ListView" as...
Unusual operator in Python code
What is the := operator? I know about = operator (assignment). Also, I know that there are += and -= synta...
Problem with multiprocessing library in Python
I need to speed up the execution of my code. After I had written the synchronized version of my code, I ha...
Star and slash in Python's functions definitions
Recently, I start to see stars and slashes in Python's function definitions. They are like regular functio...
Changing the field in the Django form after submit
Hi! I want to change the value of the form field in Django after the user submits the form. But when I try...
OOP in Django
How can I use object-oriented programming in order to better structure my code in Django? I am interested ...
What does "f" character in front of the string mean?
I noticed that sometimes strings in python have an "f" symbol in front of them. Also, they have some value...
Non-stationary time series
My current task is to create a machine learning model for time-series forecasting. I have heard that it is...
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