Category Archive for "Python"

What is the purpose of the `self` parameter? Why is it needed?

The self parameter in Python is used to reference the instance of a class within its own methods. It is a convention in Python to use self as the first parameter name, but you can...

Does Python have a ternary conditional operator?

Python is a versatile programming language that offers various features to simplify code and enhance readability. One common question that arises among Python developers is whether...

How to Print Without a Newline or Space

When using the print function in Python, a newline character (\n) is automatically added at the end of each printed statement. Additionally, a space is added as a separator between...

How to Merge Two Dictionaries in Python

In Python, dictionaries are a convenient and powerful data structure that allows you to store key-value pairs. There are times when you may need to combine or merge two dictionarie...

What is the purpose of the return statement? How is it different from printing?

When writing code in Python, it's important to understand the purpose and differences between the return statement and the print statement. Both of these statements are used to out...

How to Avoid Having Class Data Shared Among Instances?

When working with classes in programming languages like Python, it's important to understand how data is shared among instances. By default, class data is shared amon...

What is the difference between __str__ and __repr__?

When working with Python, you might have come across the __str__ and __repr__ methods. These methods are known as "magic methods" or "special methods" in Python. They allow you to...

How to Serve Static Files in Flask

Flask is a popular Python web framework that is simple and efficient for building web applications. When creating a Flask application, you may need to serve static files such as CS...

How to read a file line-by-line into a list?

In Python, there are multiple ways to read a file line-by-line and store each line as an element in a list. This can be useful for various tasks such as data processing, text analy...

How to Get the Sum of a Grouped Dataframe in Pandas

If you are working with data in the Python programming language and using the Pandas library for data manipulation, you may come across a scenario where you need to group your data...