Hello there :) , I am a python newbie and need to run following code for a task in an external simulation programm called "Abaqus" which makes use of python to access the mesh (ensamble of nodes with xy coordinates) of a certain geometrical model.
[IN is the starting input containing the nodes to be check, there are some double nodes with the same x and y coordinates which need to be removed. SN is the output containing such double nodes] Code: Select all for i in range(len(IN)): #scan all elements of the list IN for j in range(len(IN)): if i <> j: if IN[i].coordinates[0] == IN[j].coordinates[0]: if IN[i].coordinates[1] == IN[j].coordinates[1]: SN.append(IN[i].label) Unfortunately my len(IN) is about 100.000 and the running time about 15h !!!! :( Any idea to improve it? I have already tried to group the "if statements" in a single one: Code: Select all if i <> j and if IN[i].coordinates[0] == IN[j].coordinates[0] and if IN[i].coordinates[1] == IN[j].coordinates[1]: but no improvements. Many thanks, Alex -- http://mail.python.org/mailman/listinfo/python-list