Python

Converting string to int in Python is easy using the built-in int() function. For example, let’s convert the string “100” to an integer: How to Convert Comma-Separated Number String to Int? To convert a comma-separated number string (e.g. 1,000,000) to an int in Python, first, get rid of the commas with the replace() method. Then […]

To round numbers in Python, use the built-in round() function. For example, let’s round a floating-point number to its nearest integer value: Output: To round up or down, use the math module’s ceil() or floor() functions: In this guide, you will learn how to: Round a decimal number to a certain number of decimals. Round

Python string with %s is an old string formatting technique. The %s is placed into a string and it acts as a placeholder for another string variable. For example: Output: However, as more modern string formatting techniques have been added to Python, you rarely see this in use. And you should not use it either!

To write a module in Python, all you need to do is create a Python file and write some code to it. For example, to create a module called example, create a file called example.py and add the following function to it: There is your first Python module. To use it, you need to import

In Python, a mutable object can be changed, but an immutable object cannot. For example, a tuple is an immutable data type. You cannot change its elements after creating it: In contrast, a list is a mutable collection. You can change its contents afterward: This is a comprehensive guide to understanding the concepts of mutable

In short, the main difference between tuples vs lists in Python is mutability. In other words, a Python list can be changed, but a tuple cannot. This means a tuple performs slightly better than a list. But at the same, a tuple has fewer use cases because it cannot be modified. In short, here are

Python is an object-oriented programming language. It means almost everything is an object. When becoming a Python developer, it’s crucial to learn what is a Python class and how to use it to create those objects. A Python class is a blueprint for creating objects. For example, here is a simple class Person, that has

The most convenient way to merge two dictionaries in Python is by using the dict.update() method: This code merges dict1 at the end of dict2. Notice that it doesn’t create a new dictionary. This approach works with Python 2 and Python 3, so it’s the “safest bet” when merging two dictionaries. Besides, there are other

Python list is a common data type used to store multiple values for easy access. Sometimes, you may want to clear Python lists either by removing all the elements or removing elements one by one. This is a comprehensive guide to clearing a list in Python in 4 different ways. The short answer: To clear

To access all values in a dictionary in Python, call the values() method. For example: Or if you want to get a single value, use the square bracket [] access operator: In case you’re unsure whether the value exists, it makes more sense to use the dict.get() method to access the values. This prevents the