[Solved] Find the error in this code:f = open('notes.txt', 'w') f.write('Hello') f.read() f.close() - Ans: Cannot read from a file opened in write mode | Python

Python - File Handling Fundamentals

Find the error in this code:

f = open('notes.txt', 'w')
f.write('Hello')
f.read()
f.close()

Awrite() returns None

BFile not closed properly

CCannot read from a file opened in write mode

DMissing file path

Step-by-Step Solution

Solution:

Step 1: Check file mode
File is opened in 'w' mode which is write-only.
Step 2: Calling read() on write-only file
Calling read() on a write-only file causes an error.
Final Answer:
Cannot read from a file opened in write mode -> Option C
Quick Check:
Write mode disallows reading = A [OK]

Quick Trick: Don't read from files opened in 'w' mode [OK]

Common Mistakes:

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