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Remember what sorting means...
Remember what sorting means...
Sorting is just putting things in order — like alphabetizing names, arranging numbers from smallest to largest, or organizing by height.
🐍 In Python, you can sort a list using the sorted() function.
⚙️ What if we want to sort in a special way?
⚙️ What if we want to sort in a special way?
Let’s say you have a list of words, and you want to sort them by how long each word is, not alphabetically.
That’s where lambda comes in.
Here’s what’s happening:
sorted() normally sorts alphabetically.
The key= part lets us tell Python how to sort.
lambda word: len(word) tells it: “Use the length of the word as the sorting rule.”
What's a lambda?
What's a lambda?
Think of lambda as a mini function that you write in one line
Example: lambda word: len(word)
This says: “Hey, take the word and return how long it is.”
✅ Output: ['dog', 'cat', 'elephant', 'hippopotamus']
Other Example Sorts
Other Example Sorts
Sort by Student Score:
Sort by Student Score:
key=lambda student: student[1]
Wanna sort by name?
Wanna sort by name?
key=lambda student: student[0]
Sorting a Dictionary By Key
Sorting a Dictionary By Key
The sort shown will sort by YEAR
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