demos/functions.py

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def is_even(n):
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"""Returns True if n is even.
>>> is_even(10)
True
"""
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return n % 2 == 0
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def is_odd(n):
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"""Returns True if n is odd.
>>> is_odd(10)
False
"""
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return not is_even(n)
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for i in range(10):
if is_even(i):
print(f"{i} est pair")
if is_odd(i):
print(f"{i} est impair")