My turn to apologise for premature sending of email...
For some reason I didn't notice the section of mail after the code snippet! Alan G "Dan Liang" <danlian...@gmail.com> wrote in message Now since I have to work on different data format as follows: -------------Begin data---------------------------- w1 \t case_def_acc \t yes w2 \t noun_prop \t no w3 \t case_def_gen \t w4 \t dem_pron_f \t no -------------End data---------------------------- Notices that some lines have nothing in yes-no filed, and hence end in a tab. My question is how to replace data in the filed of composite tags by sub-tags like those in the dictionary values above and still be able to print the whole line only with this change (i.e, composite tags replace by sub-tags). _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor