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STUDENT NOTES · DAY 8 OF 24
Word Wizardry 🧵✨
Text in Python is called a string — and you can slice it, flip it, SHOUT it and stitch it like a wizard.
1Strings have superpowers (methods)
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Py: The dot means "do your trick": "hello".upper() asks the string to shout itself.
2Slicing — cut any piece you want
A string is a train of letters (index from 0, like lists!). Slice with [start:end]:
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Professor Hoot: [::-1] is the famous reverse trick — walk the string backwards. Interviews love it.
Word Wizard — type any word!
upper → PYTHON · len → 6 · reversed → nohtyp
3split — one string becomes a list
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Bittu: This is how I read spreadsheets, CSV files, and your messy shopping lists.
4Strings never change (Bugly's favourite)
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Bugly: Try to fix ONE letter of a string. Go on. Try. 😈
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Py: Strings are immutable — frozen after birth. To "change" one, build a NEW one: "b" + s[1:].
5Quick quiz! 🧠
What is "chai"[1]?
💡 Index 0 is c, index 1 is h. Letters count from 0, just like list wagons.
What does "a-b-c".split("-") give?
💡 split cuts at every "-" and hands you a LIST of the pieces.
6Your mission 🚀
Mission 1: Ask for the user's name and print it in CAPITALS with f"HELLO {name}!".
Mission 2: Print your name reversed with [::-1]. Is it a cool secret name?
Mission 3: Take "milk,eggs,bread", split it, and print each item on its own line with a loop.
Day 8 done — word wizard certified! ✨
Next: functions — write a spell once, cast it forever.
Go to Day 9: Functions →