Re: How to display name of elements in list? PROBLEM SOLVED.
[EMAIL PROTECTED] wrote: It looks like the PyTensor object *should* have .xx, .xy, etc properties, but they may be accessible through a matrix, i.e. .t(i,j) Thanks to all of you for your help! The solution is easy: The tensor components have labels t11, t12,... Good guess ruibalp! -- http://mail.python.org/mailman/listinfo/python-list
How to display name of elements in list?
Hi there, I'm sure there is a very simple solution for my question, I just didn't find it up to now. I'm using a badly documented module and therefore need to find out about how to access the elements in a list. (I need to do this in Python 1.5.3) Any help appreciated very much. Thanks! cz -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
I'm using a badly documented module and therefore need to find out about how to access the elements in a list. (I need to do this in Python 1.5.3) I presume this is the same in 1.5 use dir(): import os dir(os) ['F_OK', 'O_APPEND', 'O_BINARY', 'O_CREAT', 'O_EXCL', 'O_NOINHERIT', 'O_RANDOM', 'O_RDONLY', 'O_RDWR', 'O_SEQUENTIAL', 'O_SHORT_LIVED', 'O_TEMPORARY', 'O_TEXT', (etc) -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
On Wed, 12 Jul 2006 05:17:30 -0700, cz wrote: Hi there, I'm sure there is a very simple solution for my question, I just didn't find it up to now. I'm using a badly documented module and therefore need to find out about how to access the elements in a list. Er, the same way you would access the elements in any other list? mylist[0] mylist[1:5] etc. Perhaps you need to rephrase your question. -- Steven. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
Perhaps you need to rephrase your question. -- Steven. Thanks for your reply. OK, I'll try to make this more clear: My list called elten looks like that: [Tensor: id = 1, intensity = 2976.52 xx = -1447.32, xy = 52.458, xz = -594.186 yy = -1090.54, yz = -0.0158068, zz = -4043. , Tensor: id = 26, intensity = 2896.9 ... , Tensor: id = 5, intensity = 2920.5 xx = -1534.53, xy = 23.4858, xz = -623.967 yy = -1070.47, yz = 99.6301, zz = -3979.87 ] Now with print elten[1].id I will get 1 as an answer. Or with print elten[1].intensity it will print 2976.52. But this doesn't work for print elten[1].xx, why? So that's how I came to the question how to access these values. Any idea? Thanks a lot! cz -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
Hi Claudio, cz wrote: Perhaps you need to rephrase your question. -- Steven. Thanks for your reply. OK, I'll try to make this more clear: My list called elten looks like that: [Tensor: id = 1, intensity = 2976.52 xx = -1447.32, xy = 52.458, xz = -594.186 yy = -1090.54, yz = -0.0158068, zz = -4043. , Tensor: id = 26, intensity = 2896.9 ... , Tensor: id = 5, intensity = 2920.5 xx = -1534.53, xy = 23.4858, xz = -623.967 yy = -1070.47, yz = 99.6301, zz = -3979.87 ] Now with print elten[1].id I will get 1 as an answer. Or with print elten[1].intensity it will print 2976.52. But this doesn't work for print elten[1].xx, why? So that's how I came to the question how to access these values. Any idea? The list above is not a valid Python list. What is it that you store in that list? Or is it maybe a dictionary? Stefan -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
The list above is not a valid Python list. What is it that you store in that list? Or is it maybe a dictionary? Stefan Thanks for your help. How can I find out about what this is? As I said it's generated by a insufficiently documented module. So if this is a user defined datatype, is there still a possibility to find the name of the data fields storing the xx, xy, ... ? Thanks. -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
cz wrote: The list above is not a valid Python list. What is it that you store in that list? Or is it maybe a dictionary? Stefan Thanks for your help. How can I find out about what this is? As I said it's generated by a insufficiently documented module. So if this is a user defined datatype, is there still a possibility to find the name of the data fields storing the xx, xy, ... ? I guess the objects stored in the list have a __repr__-method overloaded that produces the text you see. What you should do is to install rlcompleter2, fire up a python prompt and write code that produces a list of your objects. Then you can play around with the objects and utilize the reflection capabilities of python, which are conveniently exposed using rlcompleter2. Another option is to look into the source of that module and identify the objects created. Documentation is overrated - use the source, Luke! Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
My list called elten looks like that: [Tensor: id = 1, intensity = 2976.52 xx = -1447.32, xy = 52.458, xz = -594.186 yy = -1090.54, yz = -0.0158068, zz = -4043. , Tensor: id = 26, intensity = 2896.9 ... , Tensor: id = 5, intensity = 2920.5 xx = -1534.53, xy = 23.4858, xz = -623.967 yy = -1070.47, yz = 99.6301, zz = -3979.87 ] The list above is not a valid Python list. What is it that you store in that list? It might well be a normal Python list. The question is what type the items in the list are... The result of printing a list L is basically a string you could make like this: '[' + ','.join(map(repr,L)) + ']' It seems the elements in this list appear as something like this when you apply the repr() function on them: Tensor: id = 1, intensity = 2976.52 xx = -1447.32, xy = 52.458, xz = -594.186 yy = -1090.54, yz = -0.0158068, zz = -4043. So, the issue is not how you work with a list, but how you work with the elements of this type. To reduce the problem to that, you can assign the first element in the list to a variable. elem0 = elten[0] Then you can inspect that in isolation, without the confusion of the list. type(elem0) dir(elem0) etc... -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
cz schrieb: The list above is not a valid Python list. What is it that you store in that list? Or is it maybe a dictionary? Stefan Thanks for your help. How can I find out about what this is? As I said it's generated by a insufficiently documented module. So if this is a user defined datatype, is there still a possibility to find the name of the data fields storing the xx, xy, ... ? Maybe you should read a bit about Python classes and built-in functions like dir(), type(), vars(), ... http://docs.python.org/tut/node8.html#SECTION00830 http://docs.python.org/tut/node11.html http://docs.python.org/lib/built-in-funcs.html Just start an interactive Python session and play with the object you are trying to explore. That should get you going. Stefan -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
Stefan Behnel wrote: The list above is not a valid Python list. there's no Python 1.5.3 either. maybe he's posting from a parallel, slightly different universe ? /F -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
Diez B. Roggisch deets at nospam.web.de writes: What you should do is to install rlcompleter2... [snip] Another option is to look into the source of that module and identify the objects created. Documentation is overrated - use the source, Luke! rlcompleter is overrated, and only works on Unix/Linux/etc. IDLE's interpreter has an auto-completion extension, which is bundled in Python2.5. You can also get a much better version of IDLE which includes a more robust version of the completion extension from Idle-Spoon: http://idlespoon.python-hosting.com/ stefan writes: Just start an interactive Python session and play with the object you are trying to explore. That should get you going. +1 Python is fun - just open an interpreter and play around! - Tal -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
rlcompleter is overrated, and only works on Unix/Linux/etc. IDLE's interpreter has an auto-completion extension, which is bundled in Python2.5. I don't use idle, and don't want to. So for me rlcomlpeter2 is a good thing. And under windows, it at least works under cygwin. Diez -- http://mail.python.org/mailman/listinfo/python-list
Re: How to display name of elements in list?
Pretty sure he meant 1.5.1. Found the documentation for the program he's using here: http://www.hpcu.uq.edu.au/Manuals/MSC/msc/docs/marc/python/python_manual.pdf It looks like the PyTensor object *should* have .xx, .xy, etc properties, but they may be accessible through a matrix, i.e. .t(i,j) -- http://mail.python.org/mailman/listinfo/python-list
