BitWithBite
Python Worksheet
🐍 File Handling
SCORE___ / 20
NameClassDate
After this worksheet you can
Open and read filesWrite and appendUse with blocksUnderstand file modes📚 Quick Recap
🎯 What you'll learn: Reading and writing text files with open() and the with statement. All file modes (r, w, a, r+). Reading methods: read(), readline(), readlines(). CSV files with the csv module. JSON files with json. Working with file paths using pathlib.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1Mode 'r' means:
2Best practice for opening files:
3Mode 'a' will:
4f.read() returns:
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5Write mode is ''.
6with open(...) auto- the file.
7Open notes.txt for reading using with.
8Write 'Hi' to out.txt.
9Difference between 'w' and 'a'?
🚀 Section C · Challenge ● CHALLENGE 5
10Why use with instead of open/close?
💭 Reflection — the most useful thing I learned:
A ___/4 B ___/11 C ___/5 Total ___/20
Teacher's Signature
Parent's Signature
✂ answer key — fold or cut before handing out
1-B 2-B 3-B 4-B | 5 w 6 closes 7 = with open('notes.txt') as f: 8 = with open('out.txt','w') as f: f.write('Hi') 9 = 'w' overwrites; 'a' appends to the end | 10 = It closes the file automatically, even on errors