def sum(myData):
total = 0 # set total = 0
try:
for num in range(myData):
total = total + num
except:
print(">>> invalid data <<<")
return total
# *******************
data = 4
print(sum(data))
"""
If you run this code, it will cause an error.
Error: wrong data type
----------------------
data2 = 'California'
print(sum(data2))