ChrisHow to Overcome Procrastination? Procrastination may easily be the reason number one why you are not reaching your goals. Although there are many flavors of procrastination, a common story may go like this: With good intentions, you set your alarm clock in the evening and expect your future self in the morning to get up, … Read more
π¬ Question: How to return one or multiple arguments from a Python function? Basically, creating a function that reflects one or more arguments like a mirror: Let’s find out! π Method 1: Return Single Argument A function can return a single argument by passing that argument variable after the return keyword. If the argument name … Read more
The Leibniz formula to calculate an approximation of the value of Ο is an infinite alternating series that adds and subtracts smaller and smaller terms of the form 1/x until it converges to the value of Ο/4. You can then multiply the result by 4 to obtain an approximation of Ο. Here’s the simple formula … Read more
Do you need to create a function that returns a float but you don’t know how? No worries, in sixty seconds, you’ll know! Go! π₯π₯π₯ A Python function can return any object such as a float value such as 3.14. To return a float, you can use the built-in float() function or create your own … Read more
π¬ Question: What is the difference between return and break? When to use which? Let’s first look at a short answer before we dive into a simple example to understand the differences and similarities between return and break. Comparison Both return and break are keywords in Python. The keyword return ends a function and passes … Read more
π¬ Question: How to return a global variable from a Python function. And how to return a local variable? First, have a look at the overview figure that shows how to return a local and global variable from a Python function using a simple example: Let’s dive into this example in more detail and answer … Read more
Coding Challenge π₯ π¬ Question: How to convert a list of strings to all uppercase in Python? Here are three examples: [‘hello’, ‘Python’, ‘world’] to [‘HELLO’, ‘PYTHON’, ‘WORLD’] [‘a’, ‘b’, ‘c’] to [‘A’, ‘B’, ‘C’] [‘aa aa’, ‘bb$bb’, ‘cc()cc’] to [‘AA AA’, ‘BB$BB’, ‘CC()CC’] There are multiple great ways to accomplish this coding challenge and … Read more
Coding Challenge π₯ π¬ Question: How to convert a list of strings to all lowercase in Python? Here are three examples: [‘HELLO’, ‘Python’, ‘world’] to [‘hello’, ‘python’, ‘world’] [‘A’, ‘B’, ‘C’] to [‘a’, ‘b’, ‘c’] [‘AA AA’, ‘BB$BB’, ‘CC()CC’] to [‘aa aa’, ‘bb$bb’, ‘cc()cc’] There are multiple great ways to accomplish this coding challenge and … Read more
Do you need to create a function that returns a file but you don’t know how? No worries, in sixty seconds, you’ll know! Go! π A Python function can return any object such as a file object. To return a file, first open the file object within the function body, handle all possible errors if … Read more
Coding Challenge π¬ Question: Given a Python string. How to split the string after the k-th occurrence of the separator (string or character)? In other words: how to ignore the first (k-1) separator occurrences when splitting a string? Here are three examples: π Related Tutorial: Python Split String After Second Occurrence Solution You can split … Read more
Coding Challenge π¬ Question: Given a Python string. How to split the string after the second occurrence of the separator (string or character)? In other words: how to ignore the first separator occurrence when splitting a string? Here are three examples: ‘a-b-c-d-e-f-g-h’ and sep=’-‘ should be split to [‘a-b’, ‘c’, ‘d’, ‘e’, ‘f’, ‘g’, ‘h’] … Read more
Overview π Do you encounter this stupid error? TypeError: ‘builtin_function_or_method’ object is not subscriptable You’re not alone—thousands of coders like you experience this error in thousands of projects every month. This short tutorial will show you exactly why this error occurs, how to fix it, and how to never make the same mistake again. So, … Read more