[Solved] Identify the error in this code snippet that tries to read a file line by line: file = open('notes.txt', 'r') for line in file.read(): print(line) file.close() | Python

Python - File Handling Fundamentals

Identify the error in this code snippet that tries to read a file line by line:

file = open('notes.txt', 'r')
for line in file.read():
    print(line)
file.close()

AUsing 'r' mode instead of 'w' mode

BUsing file.read() instead of file.readlines() or iterating directly on file

CNot closing the file after reading

DMissing 'with' statement to open the file

Step-by-Step Solution

Solution:

Step 1: Analyze the for loop iteration
The code uses file.read() which returns a single string of the whole file content.
Step 2: Understand iteration over string vs lines
Iterating over a string loops over each character, not each line. To read line by line, use file.readlines() or iterate directly on file.
Final Answer:
Using file.read() instead of file.readlines() or iterating directly on file -> Option B
Quick Check:
read() returns string, not list of lines [OK]

Quick Trick: Iterate file object or use readlines() to get lines [OK]

Common Mistakes:

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