List Operations

How to Prepend To List in Python

Lists highlight some of Python’s greatest strengths. Lists are similar to the arrays found in other languages but more flexible and open to manipulation. Python even has built-in list method options, such as append, which make operations that would be troublesome in an array as simple as passing a variable. However, while list has an […]

How To Fix the Python Error: TypeError: Int() Argument Must Be a String, a Bytes-Like Object or a Number, Not ‘List’

Int is an incredibly useful part of the Python language. It gives you the ability to manipulate and verify numerical data in a variety of different ways. But it does place some limitations on which data types you can work with. When there’s a conflict in data type after calling Int, you’ll receive a variety […]

How to Find Intersection in a Python List

Python list intersection is one of the more advanced techniques within the language. We don’t have any built-in functions or methods to accomplish that task. However, by achieving that goal we can truly experience Python’s power and flexibility. Even without any built-in functionality, we can typically find intersections without needing to write much code. Consider […]

How to Find Index of Occurrences in a Python List

Imagine a situation where you wanted to find every occurrence of something within a Python list. It can seem a little daunting at first. It certainly would be a complex task in many programming languages. But we’ll soon see that it’s surprisingly easy to manage this task in a Python program. The following Python code […]

How to Find the Product of a Python List

Python is well known as a platform that emphasizes versatility. It provides users with a large number of powerful data structure and container formats. What’s more, we can often perform complex functions on those elements with only a few lines of code. For example, we can even find the mathematical product of a Python list. […]

How to Count Unique Values in a Python List

Working with large amounts of data can come with some inherent issues. One of the most common problems stems from duplicate values. We often need to take special note of how often an item comes up within our records. Python makes it fairly easy to do so within the context of the list data type. […]

How to Find the Sum of a Python List

One of the best things about Python is the language’s sheer flexibility. We have a wide range of elements and containers to work with. And we can often manipulate those items in a wide variety of useful ways. For example, we can find the cumulative sum of a python list despite the fact that it’s […]

How to Check if an Element is in a Python List

Python has a reputation as a programming language that does things a little differently than one might expect. Lists are one of the best examples of this philosophy. In theory, Python program lists are quite similar to arrays in other languages. But in practice, a list’s versatility makes it extremely powerful. For example, consider how […]

How to Convert String to Python List

Python is well known as one of the more versatile programming languages. This is in large part due to how the language handles data type structures. Strings and lists are two perfect examples of Python’s flexibility. Strings in Python programming are generally analogous to the same variable in other languages. Meanwhile, lists are quite similar […]

How to Change Set to List in Python

Sets and lists are two important elements of the Python programming language. At first glance, they might even seem identical to each other. We assign both sets and lists in a similar manner. Sets and lists can also contain similar data types. We can contain a string or integer within each. We even access components […]

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