Python - File Handling Fundamentals
What is the effect of opening a file in Python with mode
'a' and then writing data to it?What is the effect of opening a file in Python with mode 'a' and then writing data to it?
easy🧠 Conceptual Q1 of Q15
Step-by-Step Solution
Solution:
Step 1: Understand mode 'a'
Opening a file with mode 'a' means append mode, which allows writing data at the end of the file.Step 2: Writing data
When you write data, it is added after the existing content without deleting it.Final Answer:
Data is added to the end of the file without deleting existing content -> Option DQuick Check:
Appending preserves existing data [OK]
Quick Trick: Append mode adds data at file end without erasing [OK]
Common Mistakes:
MISTAKES- Thinking 'a' mode clears the file
- Assuming 'a' mode opens file for reading
- Believing 'a' mode causes error if file missing
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