Else Branches in Python

This Block teaches one of the most useful branching patterns in Python: if with else. You will learn how to handle two-path decisions like pass or fail, allowed or not allowed, free shipping or paid shipping, and open or closed. Simple examples first, theory second. Nice and painless.

The focus is on writing clear beginner-friendly branching code: one condition, two possible paths, and exactly one branch running. You will also learn where shared code belongs, why else does not take its own condition, and how indentation changes what Python actually does.

What you will learn:

• Use if / else for exactly-two-path decisions
• Understand that else runs when the if condition is false
• Write the correct else: syntax without adding another condition
• Keep if and else aligned with proper indentation
• Avoid duplicated opposite conditions when one else branch is cleaner
• Place shared code after the branch so it runs in both cases
• Use simple compound conditions with and inside an if / else

By the end, you will be able to write small Python programs that make clear either/or decisions without confusing duplicated logic or mystery indentation bugs.