Re: [Tutor] mapping problem

2006-02-01 Thread Kent Johnson
Srinivas Iyyer wrote: > Dear group, > I have a problem in finding a method to solve a > problem where I want to walk through a lineage of > terms and find group them from right to left. > > A snippet of the problem is here. The terms in file as > tab delim manner. > > a b c d

Re: [Tutor] mapping problem

2006-02-01 Thread Danny Yoo
> A snippet of the problem is here. The terms in file as > tab delim manner. [data cut] > Now my question is to enrich members that have identical lineage with > different leaf. 'i.e': a b c d - van suv. Hi Srinivas, You're starting to use the vocabulary of tree data structures here. Let's

Re: [Tutor] mapping problem

2006-02-01 Thread Hugo González Monteverde
What about choosing a native Python data structure for this? A list of attributes comes to mind, as presence of one can be easily tested with if x in attributes: do_something Here's a test: >>> elements= {} >>> elements['boat'] = ['a', 'b', 'j', 'k'] >>> 'a' in elements['boat'] True >