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Update 25_decorators.py #253

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Update 25_decorators.py #253

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10 changes: 5 additions & 5 deletions Basics/Exercise/25_decorators/25_decorators.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
def check(f):
def helper(x):
if type(x) == int and x > 0:
if type(x) == int and x >= 0: #this should be >= to include 0 as well.
return f(x)
else:
raise Exception("Argument is not a non-negative integer")
Expand All @@ -10,21 +10,21 @@ def helper(x):

@check
def factorial(n):
if n == 1:
if n == 1 or n==0: #0!=1
return 1
else:
return n * factorial(n - 1)


for i in range(1, 10):
for i in range(10):
print(i, factorial(i))

try:
print(factorial(-1))
except Exception as e:
e.print_exception()
print(str(e))

try:
print(factorial(1.354))
except Exception as e:
e.print_exception()
print(str(e))