string.find first before location

[Peter Otten]

Serge Orlov wrote:

> Peter Otten wrote:
>> Gary Wessle wrote:
>>
>> >> These days str methods are preferred over the string module's
>> >> functions.
>> >>
>> >> >>> text = "abc abc and Here and there"
>> >> >>> here_pos = text.find("Here")
>> >> >>> text.rfind("abc", 0, here_pos)
>> >> 4
>> >>
>> >> Peter
>> >
>> > and what about when python 3.0 is released and those depreciated
>> > functions like find and rfind are not supported. is there another
>> > solution which is more permanent?
>>
>> I think the functions may go away, the methods will stay; so I'm
>> confident the above will continue to work.
> 
> find and rfind methods are in danger too. AFAIR they are to be replaced
> by partion and rpartition methods. People who are worried about future
> can continue to use index and rindex

I really should read those PEPs before posting.

And just as I was starting to complain I noted that my original reply to
Gary is buggy -- excluding the last letter in the string from the rfind()
search if "Here" is not found is probably never the desired behaviour. So
r/index() is indeed superior here.

Peter