wes weston <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > Lad wrote: > > Hi, > > I have a file of records of 4 fields each. > > Each field is separated by a semicolon. That is > > > > Filed1;Ffield2;Field3;Field4 > > > > But there may be also empty records such as > > ;;;; > > (only semicolons). > > > > For sorting I used > > ################# > > lines = file('Config.txt').readlines()# a file I want to sort > > lines.sort() > > ff=open('ConfigSorted.txt','w')# sorted file > > ff.writelines(lines) > > ff.close() > > ############### > > It was sorted but empty records were first. I need them to be last(at > > the end of the file). How can I do that? > > > > Thanks for help > > Lad > > Lad, > The sort call can have a function name as an arg. You > could do: > > def mycompare(s1,s2): > #return -1 to put s1's at front; 1 to put s1's at back; 0 for a tie > #if s1==";;;;" and s2<>";;;;": return 1 > > lines.sort(mycompare) > Wes, Thank you for reply. But I do not understand mycompare function. Can you please explain to me how it should work? Thanks
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