Re: [Tutor] Python Trouble, Please Help!

2013-08-08 Thread Alan Gauld
On 25/07/13 00:23, Jonathan Hong wrote: because of my lack of computer knowledge. When I do put in python helloworld.py into the command prompt line, the computer gives me a response of: "python: can't open file 'hello.py': [Errno 2] No such file You need to supply the full path to the file (o

[Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread SM
I am defining multiple classes (some of them are threads) I have been writing Python programs for a few months, but never faced this issue so far unless I am doing something different inadvertently. The only difference I see is that I am calling the methods belonging to other classes, from a class

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread Alan Gauld
On 08/08/13 17:23, SM wrote: I am defining multiple classes (some of them are threads) I have been writing Python programs for a few months, but never faced this issue so far unless I am doing something different inadvertently. The only difference I see is that I am calling the methods belonging

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread SM
Ramit: Thanks for the quick response. You are right about the error. When I did the following: x = Ui_MainWindow() x.setStdoutToTextEditWindowFw() I got the following error: AttributeError: 'Ui_MainWindow' object has no attribute 'textEdit_fwcmdlineoutput' But I do have code that creates an attri

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread SM
Hi Alan, Thanks for your quick and detailed reply. I guess what you are suggesting is very similar to what I am doing (of course not when I use the class. I tried using the class when I couldn't figure out why it gave error when I used the object). Looking at your example, I ended up doing exactly

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread Alan Gauld
On 08/08/13 21:24, SM wrote: example, I ended up doing exactly what you suggested. I am sure I am missing something, as it is giving the same error: Here is what I am doing based on your suggestion: class bcThread(threading.Thread): def h(self, y): y.setStdoutToTextEditWindowFw()

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread SM
Is it necessary that the call should be in __init__? The widget is very much getting created and I have the line (copied again here) under a method setupUi() under Ui_MainWindow: class Ui_MainWindow(object): [snip] def setupUi(self, MainWindow): [snip] self.textEdit_fwcmdli

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread SM
On 08/08/13 21:24, SM wrote: example, I ended up doing exactly what you suggested. I am sure I am > missing something, as it is giving the same error: > Here is what I am doing based on your suggestion: > > class bcThread(threading.Thread): > def h(self, y): > y.setStdoutToTextEditW

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread Alan Gauld
On 08/08/13 22:03, SM wrote: [SM] Sorry that I didn't add that part. setupUI is called from the main as below: if __name__ == "__main__": import sys app = QtGui.QApplication(sys.argv) MainWindow = QtGui.QMainWindow() ui = Ui_MainWindow() ui.setupUi(MainWindow) Main

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread Alan Gauld
On 08/08/13 23:02, eryksun wrote: You are creating a new instance inside your run() method but the call in main() only sets it for the instance created in main. It won't set it up for any other instance. You need to call it every time you create a new object. Unless If you put it in init()

Re: [Tutor] inconsistent destruction

2013-08-08 Thread David Hutto
if the variable is the range in the first one, then just don't append it, and replace it with something else. The second, you use cnt2, but it is a part of the the list comp, but not a variable: #this is in [ython 3, but you can import from future, or remove quotes from print parameters lst = [cn

Re: [Tutor] hi

2013-08-08 Thread Vick
Hi, It just plot one line. How to print several lines? I've attached your example and I've corrected my own 3d code which works now but it is not an animation. So how can I plot it using the code you gave me? By the way, I think you know that I'm trying to plot for n-body problem? Have you made

Re: [Tutor] Question in regards to loops and matplotlib

2013-08-08 Thread Zachary Rizer
This looks quite clean! Since posting this question I have cleaned up this script by using multiple functions, but it still isn't this clean! My data is a normal CSV table with column headers. It isn't in a dictionary format like your sample data here. I'm sure I could switch it to that format thou

[Tutor] Python Programming for the absolute beginner 3e Ch3 Challenge 4

2013-08-08 Thread John Feleppa
Hello, I am working through Michael Dawson's book, "Python Programming for the absolute beginner 3rd edition". Have just completed Chapter 3, but cannot solve Challenge 4. Has anyone solved this yet - and be willing to share this code? I would much appreciate.. John. __

Re: [Tutor] Online references for Python

2013-08-08 Thread Travis Farley
I've also found this to be helpful: http://www.diveintopython.net/toc/index.html It's a little dated but most of the information still applies. On Mon, Jul 29, 2013 at 10:29 AM, Rene Datta wrote: > Hi: > > I was wondering if anyone could suggest a good quality online resource > tool or compen

Re: [Tutor] inconsistent destruction

2013-08-08 Thread David Hutto
In other words lst is a global variable, where as cnt2 is a local variable to just the list comps completion of the data being diplayed in the list comp, with each cnt2 in the global var lst being contained in the list comp, but only accessible through iteration/placing/splicing of the lst variable

[Tutor] constrained least square fitting using python

2013-08-08 Thread sudipta
Hi All, I am facing a problem for constrained linear least square fitting. In my case the matrix equation looks like [Y]nX1=[X]nXm[P]mX1, where Y and P are vectors and X is a matrix and n, m are dimension of the matrix. Further, there is a equality constraint on P which is Sum(P(i))=0.0. How do I

Re: [Tutor] inconsistent destruction

2013-08-08 Thread Japhy Bartlett
you can either manually manage the memory with `del cnt` or let the built in memory management .. manage the memory. On Wed, Aug 7, 2013 at 10:54 PM, Jim Mooney wrote: > This bugs me for some reason. The final variable is saved in a for > loop but not in a list comprehension. It just seems to me

Re: [Tutor] Python Programming for the absolute beginner 3e Ch3 Challenge 4

2013-08-08 Thread Alan Gauld
On 08/08/13 18:05, John Feleppa wrote: I am working through Michael Dawson's book, "Python Programming for the absolute beginner 3rd edition". Have just completed Chapter 3, but cannot solve Challenge 4. Has anyone solved this yet - and be willing to share this code? If you give us a clue wh

Re: [Tutor] constrained least square fitting using python

2013-08-08 Thread Alan Gauld
On 07/08/13 22:37, sudipta wrote: this? I saw few of discussion on scipy.optimize.fmin_slsqp() function but the implementation of this function is not very straightforward. Therefore, I need your help. I am new in SCIPY. Please help me out in This list is really aimed at newcomers to Python an

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread SM
>>I'm confused. Why does the OP want multiple instances of the user interface widgets? > He may not, but he is creating them! But it is possible he does want multiple duplicate windows, one monitoring each thread. (eg progress dialogs on an FTP program). Since I don't know the context I'm assuming

Re: [Tutor] How to access a method defined in one class from another class (which is a thread) in Python3?

2013-08-08 Thread Marc Tompkins
On Thu, Aug 8, 2013 at 7:15 PM, Joel Goldstick wrote: > On Thu, Aug 8, 2013 at 9:52 PM, SM wrote: > > > > > OP is me? Not sure what it stands for, but I am a 'she' :) > > FYI (For you information) OP means Original Poster. Although people > do refer to names in replies here, the term OP is used