[Solved] Which of the following code snippets correctly uses a context manager to open a file for reading? — Ans: with open('file.txt', 'r') as f: data = f.read() | Python

Python - Context Managers

Which of the following code snippets correctly uses a context manager to open a file for reading?

Awith open('file.txt', 'r') as f: data = f.read()

Bopen('file.txt', 'r') as f: data = f.read()

Cwith open('file.txt', 'r'): data = read()

Dfile = open('file.txt', 'r') with file: data = file.read()

Step-by-Step Solution

Solution:

Step 1: Identify correct 'with' syntax
The 'with' statement must be followed by an expression and 'as' to assign the resource.
Step 2: Check each option
with open('file.txt', 'r') as f: data = f.read() correctly uses 'with open(...) as f:' and reads data.
Final Answer:
with open('file.txt', 'r') as f: data = f.read() -> Option A
Quick Check:
Correct 'with' syntax includes 'as' [OK]

Quick Trick: 'with open(...) as var:' is correct syntax [OK]

Common Mistakes:

Master "Context Managers" in Python

9 interactive learning modes - each teaches the same concept differently

More Python Quizzes

Which of the following code snippets correctly uses a context manager to open a file for reading?