On Oct 9, 7:29*am, ShashiGowda <connect2sha... @gmail.comwrote :
I am writing a package manager and stuck unable to write the version
sorting function the algorithm is herehttp://www.linux.gr/cgi-bin/man/man2html?deb-version+5
and all other info is also in it please tell me how to do lexical
comparision in python it'll be cool if you just write the code!
On Oct 9, 7:29 am, ShashiGowda <connect2sha... @gmail.comwrote :
I am writing a package manager and stuck unable to write the version
sorting function the algorithm is herehttp://www.linux.gr/cgi-bin/man/man2html?deb-version+5
and all other info is also in it please tell me how to do lexical
comparision in python it'll be cool if you just write the code!
Step 1. Define a class, call it something like PackageVersion, with
an __init__ method that takes an string containing the version
string. In the body of __init__, use regular expressions, pyparsing,
str methods, whatever, to break up the version into the individual
fields.
Step 2. Implement a __cmp__ method on PackageVersion that performs
the desired version comparison logic.
Take a crack at writing some code, and come back with specific
questions. I doubt your hopes for coolness will be met.
-- Paul
