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You want to check that a list is not empty before processing it. Which assert statement correctly does this?

hard📝 Application Q8 of 15
Python - Advanced Exception Handling
You want to check that a list is not empty before processing it. Which assert statement correctly does this?
Aassert my_list is not None, 'List cannot be empty'
Bassert my_list == [], 'List cannot be empty'
Cassert len(my_list) > 0, 'List cannot be empty'
Dassert not my_list, 'List cannot be empty'
Step-by-Step Solution
Solution:

  1. Step 1: Understand how to check non-empty list

    Length greater than zero means list is not empty.

  2. Step 2: Evaluate options

    assert len(my_list) > 0, 'List cannot be empty' asserts length > 0 with message, which is correct.

  3. Final Answer:

    assert len(my_list) > 0, 'List cannot be empty' -> Option C

  4. Quick Check:

    Check list length > 0 to assert non-empty [OK]
Quick Trick: Use len() > 0 to assert list is not empty [OK]
Common Mistakes:
  • Using assert my_list == [] to check non-empty
  • Using assert not my_list which checks for empty
  • Confusing truthy/falsy values of lists

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