Challenge 1
Store None in the variable result.
python
Your answer
result =
print(result is None)Press Ctrl⌘Enter to check your answer
Code Completion
4 Challenges
Complete the Python None code
Practice returning None, checking for None, and distinguishing None from other false values.
Beginner
~6 min read
Challenge 2
Call show() and print whether its result is None.
python
Your answer
def show():
print("ready")
result = show()
print(result)Press Ctrl⌘Enter to check your answer
Challenge 3
Print 'missing' only when value is None.
python
Your answer
value = None
if value:
print("missing")Press Ctrl⌘Enter to check your answer
Challenge 4
Print 'missing' for None but not for zero.
python
Your answer
value = 0
if value:
print("missing")Press Ctrl⌘Enter to check your answer