Emile van Sebille wrote: > On 5/9/2009 5:30 PM Alan Gauld said... > >> You should probably be able to do the first for loop as a list >> comprehension, but I can't think of how to get the split() call >> embedded into it right now! >> > > Just for fun -- given datafile contents... > > 1 one 2 two > 3 three 4 four > 5 five 6 six > 7 seven 8 eight > 9 nine 10 ten > 11 eleven 12 twelve > > ... here's a single list comprehension answer > > [ v for k,v in sorted( > dict ( (int(pair[0]),pair[1]) > for pairs in [ dataline.split() > for dataline in open(r'c:\datafile').readlines() if dataline ] > for pair in (pairs[:2], pairs[2:4]) ).items() )] > > > ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine', > 'ten', 'eleven', 'twelve']
Kids, don't try this at home ... Stefan _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
