Articles

The problem...
Numbers seem straightforward. You add, subtract, multiply, divide.
But Python has quirks. And some of them will catch you off guard.
These are the mistakes almos…

The idea!
You've covered a lot. int, float, arithmetic, the math module, two real projects.
This is your reference. Everything in one place.
Come back here whenever you need a …

You did it. Again.
And this time, you knew what you were doing.
int. float. Arithmetic. Division quirks. The math module. Two real projects — a temperature converter and a…

The problem...
You've worked with text. You've worked with numbers.
But some questions don't have a text or number answer.
Is the user logged in? Is the price above 100? Is the…

The problem...
You know how to check one condition.
Is the age above 18? Is the price below 100?
But real programs rarely check just one thing at a time.
What if you need both…

The problem...
You have a value. You want to know if it exists somewhere.
Is this letter in the word? Is this word in the sentence?
You could check character by character. But …