You want to append a dictionary's keys and values as lines to a file data.txt in the format key:value\n. Which code snippet correctly does this?

hard📝 Application Q9 of 15

Python - File Handling Fundamentals

You want to append a dictionary's keys and values as lines to a file data.txt in the format key:value\n. Which code snippet correctly does this?

Awith open('data.txt', 'a') as f: for k, v in my_dict.items(): f.write(f'{k}:{v}\n')

Bwith open('data.txt', 'w') as f: for k, v in my_dict.items(): f.write(f'{k}:{v}\n')

Cwith open('data.txt', 'a') as f: f.write(str(my_dict))

Dwith open('data.txt', 'r') as f: for k, v in my_dict.items(): f.write(f'{k}:{v}\n')

Step-by-Step Solution

Solution:

Step 1: Use append mode to add data without erasing
Mode 'a' appends new lines to the file.
Step 2: Loop through dictionary items and write formatted lines
Writing each key:value pair with newline correctly appends data.
Final Answer:
with open('data.txt', 'a') as f:\n for k, v in my_dict.items():\n f.write(f'{k}:{v}\n') -> Option A
Quick Check:
Append mode + loop write = correct format [OK]

Quick Trick: Loop dict items and write lines in append mode [OK]

Common Mistakes:

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