String Method 'find(...)'.

[ClassicalSoul]

Hi, I have a question about the string method 'find(...)'.

Consider the string 'tomato potato gelato'. How would I frame an optional argument such that the indexing would only begin at 'gelato'? In general terms, what I am trying to learn here is how to read function descriptions, because I don't get how the optional arguments work on the basis of the following description.

find(...)
 |      S.find(sub[, start[, end]]) -> int
 |      
 |      Return the lowest index in S where substring sub is found,
 |      such that sub is contained within S[start:end].  Optional
 |      arguments start and end are interpreted as in slice notation. 

Thanks