Pre-flight checklist automation in Drone Programming - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to initialize the checklist status as all items unchecked.

Drone Programming

checklist = {'battery': False, 'motors': False, 'gps': False, 'camera': False}
status = [1]

Drag options to blanks, or click blank then click option'

Achecklist

Bchecklist.copy()

Clist(checklist)

Ddict()

Attempts:

3 left

💡 Hint

Common Mistakes

Using list() converts keys to a list, not a dictionary.

Using dict() creates an empty dictionary, not a copy.

The variable status should reference the checklist dictionary to track each item's check state.

2fill in blank

medium

Complete the code to mark the 'battery' check as done.

Drone Programming

status['battery'] = [1]

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A'done'

BTrue

C1

Dchecked

Attempts:

3 left

💡 Hint

Common Mistakes

Using strings instead of boolean values.

Using numbers instead of booleans.

The checklist uses boolean values to mark checks. True means the check is done.

3fill in blank

hard

Fix the error in the code that checks if all items are done.

Drone Programming

if all(status[1]):
    print('Ready for takeoff')

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A[]

B.keys()

C.items()

D.values()

Attempts:

3 left

💡 Hint

Common Mistakes

Using keys() returns the item names, not their status.

Using items() returns pairs, which all() can't evaluate directly.

The all() function needs the values (True/False) to check if all are done.

4fill in blank

hard

Fill both blanks to update the checklist for items starting with 'c'.

Drone Programming

for item in checklist:
    if item[1]'c'):
        status[item] = [2]

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Astartswith(

Bendswith(

CTrue

DFalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using endswith instead of startswith.

Setting status to False instead of True.

Use startswith('c') to find items beginning with 'c' and mark them as done with True.

5fill in blank

hard

Fill all three blanks to create a dictionary of checked items only.

Drone Programming

checked_items = [1]: [2] for [3] in status.items() if [2] == True

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A{k

Bv

Ck, v

D}

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting the curly braces.

Using wrong variable names.

Not filtering by True values.

This dictionary comprehension collects keys and values where the value is True, using {k: v for k, v in status.items() if v == True}.