Using if loop in Field Calculator of ArcMap

Question

I'm trying to calculate a field using Python with field calculator but am running into a syntax error. I'm hoping someone can point out what the error is, and I can't seem to figure it out. Below is the code.

Unfortunately, BUS_YR is stored as a string. It has the last 2 digits of a year and I'm trying to convert it into an integer of the full year. So 96 becomes 1996 and 00 becomes 2000.

def Reclass(NEWYEAR):
 BUS_YR=int(BUS_YR)
 If BUS_YR > 90:
 return BUS_YR+1900
 Else: 
 return BUS_YR+2000

Answer 1

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if and else need to be lower case in Python

Answer 2

Here is how the code should read with the suggested correction (as mentioned previously) with if and else, lower cased.

def Reclass(NEWYEAR): 
 BUS_YR=int(BUS_YR) 
 if BUS_YR > 90: 
 return BUS_YR+1900 
 else: 
 return BUS_YR+2000