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match case solution in Clear category for Compare Functions by rybld2
def checkio(f,g):
def h(*args, **kwargs):
try_f, try_g = None, None
try:
try_f = f(*args, **kwargs)
except:
pass
try:
try_g = g(*args, **kwargs)
except:
pass
match (try_f, try_g):
case (None, None): return None, 'both_error'
case (None, _): return try_g, 'f_error'
case (_, None): return try_f, 'g_error'
case (x, y) if x == y: return try_f, 'same'
case _: return try_f, 'different'
return h
return h
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
# (x+y)(x-y)/(x-y)
assert checkio(lambda x,y:x+y,
lambda x,y:(x**2-y**2)/(x-y))\
(1,3)==(4,'same'), "Function: x+y, first"
assert checkio(lambda x,y:x+y,
lambda x,y:(x**2-y**2)/(x-y))\
(1,2)==(3,'same'), "Function: x+y, second"
assert checkio(lambda x,y:x+y,
lambda x,y:(x**2-y**2)/(x-y))\
(1,1.01)==(2.01,'different'), "x+y, third"
assert checkio(lambda x,y:x+y,
lambda x,y:(x**2-y**2)/(x-y))\
(1,1)==(2,'g_error'), "x+y, fourth"
# Remove odds from list
f = lambda nums:[x for x in nums if ~x%2]
def g(nums):
for i in range(len(nums)):
if nums[i]%2==1:
nums.pop(i)
return nums
assert checkio(f,g)([2,4,6,8]) == ([2,4,6,8],'same'), "evens, first"
assert checkio(f,g)([2,3,4,6,8]) == ([2,4,6,8],'g_error'), "evens, second"
# Fizz Buzz
assert checkio(lambda n:("Fizz "*(1-n%3) + "Buzz "*(1-n%5))[:-1] or str(n),
lambda n:('Fizz'*(n%3==0) + ' ' + 'Buzz'*(n%5==0)).strip())\
(6)==('Fizz','same'), "fizz buzz, first"
assert checkio(lambda n:("Fizz "*(1-n%3) + "Buzz "*(1-n%5))[:-1] or str(n),
lambda n:('Fizz'*(n%3==0) + ' ' + 'Buzz'*(n%5==0)).strip())\
(30)==('Fizz Buzz','same'), "fizz buzz, second"
assert checkio(lambda n:("Fizz "*(1-n%3) + "Buzz "*(1-n%5))[:-1] or str(n),
lambda n:('Fizz'*(n%3==0) + ' ' + 'Buzz'*(n%5==0)).strip())\
(7)==('7','different'), "fizz buzz, third"
Aug. 9, 2024
