Python - File Reading and Writing Strategies
What is the main advantage of reading a file line by line in Python instead of reading the whole file at once?
What is the main advantage of reading a file line by line in Python instead of reading the whole file at once?
easy🧠 Conceptual Q1 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand file reading methods
Reading the whole file at once loads all content into memory, which can be large.Step 2: Compare line-by-line reading
Reading line by line processes one line at a time, saving memory especially for big files.Final Answer:
It uses less memory for large files -> Option BQuick Check:
Memory efficiency = C [OK]
Quick Trick: Line-by-line reading saves memory for big files [OK]
Common Mistakes:
MISTAKES- Thinking it speeds up reading
- Assuming it auto-closes file
- Confusing with string methods
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