when i try to run this file on python it says invalid syntax how do i fix this

ProductofPositives (theNums) : * Pre-condition: \# theNums is a list of numbers \# Post-condition: \# Return value is the product of just the positive numbers \# in thenums \# If theNums contains no positive numbers the function \# should return -999 \# Note: the product of two numbers a and b is a times b p=1 for n in theNums: if n>0 : p=i999 return p \# Code stub: replace with function body 9) of whole numbers list that contains all of the odd numbers