Dear Juan, answering your first question, you can use && instead of semicolon. I use <div style="margin-left: 40px;"> build.run("cd %s && cmake . && make" % self.src_dir, stdout=log_file) </div>hope you find this useful. Bests, Haldo.- <div class="gmail_quote">2011/11/28 Juan Cardelino <<a href="mailto:juan.cardelino@gmail.com">juan.cardelino@gmail.com</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Dear all, I have a couple of questions about the demo system, because one of my demos is somehow different that the average. 1) I have code which needs a ./configure to generate its makefile. Ideally, I would like to do the following: build.run("./configure"); <- the problem here is that this needs to be run in the src dir but the demo code runs outside it. build.run("make -C src"); Is there a way to change the working dir in python? Because as far as I know, there is no way to change the working directory in a ./configure script I also tried build.run("cd src ; ./configure "); and it didn't work. Also tried to escape the semilcolon, but without any luck. At the moment, I use a pre-generated makefile, but it think this it not the best idea, because I have to hard-wire the path to the libraries, o assume they are in an standard path. 2) Regarding the same topic, it would be useful to run cmake in the same way (this is related to a recent Nicolas question). So far I had no luck with this, sorry Nicolas. 3) I'm working in matching of graphs and trees, which in turn come from images. When I try to illustrate this in a demo, I do the following: a) im1->tree1 b) im2->tree2 c) (im1,im2,tree1,tree2)->G (a graf) d) G->matching In this case the demo fits exactly in the IPOL's demo model: two input images, one list of nodes as output (then passed to a graph renderer to show it as an image) I'm also matching RAGs, for which I do the following: a) im1->tree1 b) im2->tree2 c) (im1,im2,tree1,tree2)->G (a graf) d) G->matching But in general I think it will be very helpful to have a standalone demo which receives directly a couple of graphs and outputs the isomorphism. So I need to use a couple of input formats for the graphs. If the graph is expressed as an adjacency matrix, the input will be a text file with the matrix (in a sort of csv format), and in the case of a adjacency list, it will be a list of pairs of connected nodes (again in a text file). My problem with this is the input. Currently the input system is tailored to images, so it will take some coding to adapt it to another kind of input, for instance to upload a text file, rename it, etc. Have you guys tried to do something similar? Thanks in advance. Best regards, Juan _______________________________________________ discuss mailing list <a href="mailto:discuss@list.ipol.im">discuss@list.ipol.im</a> <a href="http://tools.ipol.im/mailman/listinfo/discuss" target="_blank">http://tools.ipol.im/mailman/listinfo/discuss</a> </blockquote></div> -- Haldo Spontón (+598) (99) 869 855