matching strings in a large set of strings

Terry Reedy tjreedy at udel.edu
Thu Apr 29 22:29:32 CEST 2010


On 4/29/2010 5:38 AM, Karin Lagesen wrote:
> Hello.
>
> I have approx 83 million strings, all 14 characters long. I need to be
> able to take another string and find out whether this one is present
> within the 83 million strings.

If the 'other string' is also 14 chars, so that you are looking for 
exact matches, and you are doing this repeatedly, you might look to 
match hash values first.




More information about the Python-list mailing list