Python - File Handling Fundamentals
You want to open a file to read and write without truncating it, and create it if it does not exist. Which mode is correct?
You want to open a file to read and write without truncating it, and create it if it does not exist. Which mode is correct?
hard🚀 Application Q9 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand "a+" mode
"a+" opens file for reading and appending, creates if missing, does not truncate.Step 2: Compare with other modes
"r+" errors if missing, "w+" truncates, "x+" errors if exists.Final Answer:
"a+" mode -> Option BQuick Check:
Read/write append without truncate = a+ [OK]
Quick Trick: Use "a+" to read/write append and create if missing [OK]
Common Mistakes:
MISTAKES- Using "r+" which fails if file missing
- Using "w+" which truncates file
- Using "x+" which errors if file exists
Master "File Handling Fundamentals" in Python
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