How to Fix: TypeError: ‘float’ object is not iterable
This error is a direct cousin of TypeError: ‘int’ object is not iterable. It means: “You tried to use a for loop on a single…
Beginner Python Project: Build a Command-Line To-Do List App
This classic Python To-Do List Project is one that combines all your fundamental skills: loops, functions, lists, and file handling. We’ll build a simple program…
How to Fix: TypeError: ‘int’ object is not iterable
“Iterable” means “capable of being returned one at a time”. Lists, strings, and ranges are iterable. A single number (integer) is not, which is why…
How to Fix: RuntimeError: dictionary changed size during iteration
Imagine you have a list of tasks, and you’re crossing them off one by one. If someone suddenly ripped half the page out while you…
Python List Comprehensions: Writing Cleaner Code
If you have been writing Python for more than a few days, you have likely written this exact sequence of boilerplate code: While this works…
The Ultimate Guide to Python ‘for’ Loops and ‘while’ Loops
In programming, one of our main goals is to automate repetitive tasks. This is where loops come in. They are one of the most powerful…
