Python - Coding Bat - List 2

Here is my attempt at doing all of List 2

Link to coding bat can be found here:

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[wongkingshun]

def sum13(nums):
sum=0
i=0
while i<len(nums):
if nums[i]==13:
nums[i]=0
i+=2
else:
sum+=nums[i]
i+=1
return sum

[wongkingshun]

sum = 0
i = 0
while i < len(nums):
if nums[i] == 13:
i += 1 # skip the current 13 and the next number
else:
sum += nums[i]
i += 1
return sum

this code works too