Τη Τρίτη, 22 Ιανουαρίου 2013 6:55:02 μ.μ. UTC+2, ο χρήστης John Gordon έγραψε: > In <mailman.801.1358870401.2939.python-l...@python.org> Ferrous Cranus > <nikos.gr...@gmail.com> writes: > > > > > I just need a way to CONVERT a string(absolute path) to a 4-digit unique > > > number with INT!!! That's all i want!! But i cannot make it work :( > > > > Given your requirements, I don't think it *can* work. There's just no > > way to do it. > > > > How can the computer guarantee that billions of possible inputs (file paths) > > map to 10,000 unique outputs (4-digit numbers)? It's not possible. > > > > It might be possible if you had control over the format of the input strings, > > but it doesn't sound like you do. > > > > Can you maintain a separate database which maps file paths to numbers? > > If so, then this is an easy problem. Just keep a lookup table, like so: > > > > filepath number > > -------- ------ > > /home/files/bob/foo.html 0001 > > /home/files/bob/bar.html 0002 > > /home/files/steve/recipes/chocolate-cake.html 0003 > > /home/files/mary/payroll.html 0004 > > > > -- > > John Gordon A is for Amy, who fell down the stairs > > gor...@panix.com B is for Basil, assaulted by bears > > -- Edward Gorey, "The Gashlycrumb Tinies"
No, because i DO NOT WANT to store LOTS OF BIGS absolute paths in the database. And the .html files are not even close 10.000 -- http://mail.python.org/mailman/listinfo/python-list
