Python - File Reading and Writing Strategies
Which Python file mode should you use to add new content to the end of an existing file without deleting its current contents?
Which Python file mode should you use to add new content to the end of an existing file without deleting its current contents?
easy📝 Syntax Q3 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand file modes
'r' is for reading, 'w' overwrites, 'x' creates a new file but fails if it exists.Step 2: Identify append mode
'a' opens the file for appending, preserving existing content and adding new data at the end.Final Answer:
'a' -> Option CQuick Check:
Appending mode preserves data [OK]
Quick Trick: Use 'a' to add without deleting [OK]
Common Mistakes:
MISTAKES- Choosing 'w' which overwrites the file
- Using 'r' which is read-only
- Selecting 'x' which fails if file exists
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