Importing wxWidgets Help

[RF]

I've written a class TreeCtrl python file. I'm trying to import it into my project's main python file.

I can't find any examples of how this should be done. The examples I've found are very simple ones like Car.py located here: https://www.guru99.com/import-module-python.html

But those are very simple examples and if I copy their structure they don't work for wx widgets.

My project will use various widgets such as TreeCtrl, StyledTextCtrl, Toolbar and Menu. I thought I would put each of them into their own class file and import them into my main core python file (to keep file sizes down).

Does that sound reasonable or should I just have the classes at the top of my main python file and not do the imports?

[RF]

So I decided to start out by incorporating my class MyTreeCtrl(wx.TreeCtrl): at the top of my core project file pxCore.py. I have attached it as a zip file.

I just can't figure out how to make the call to create the TreeCtrl without getting some kind of error.

Currently the error in line 6 is: TypeError: TreeCtrl(): arguments did not match any overloaded call:

Thank you for any help.

[RF]

I uploaded an older copy of my pxCore.py file. Attached is my latest version that I should have uploaded previously.

[Tim Roberts]

You have two immediate problems.  First, in CoreFrame where you instantiate MyTreeCtrl, you are passing `vbox` as the parent.  This is one of the more confusing aspects of wxWidgets.  The windows and the sizers live in two separate hierarchies.  A sizer controls a set of windows, but it is not itself a window, and thus cannot be a parent.  You need to pass "self" as the parent, so the frame becomes the parent window.  Essentially, you create a whole bunch of windows in a hierarchy, and then you add those windows to sizers (which have their own hierarchy) to control their placement.

The second problem is in "MyTreeCtrl.__init__" when you call "wx.TreeCtrl.__init__".  If you look at the documentation, you'll see that the parameters for that start out self, parent, id, pos, size, style, ...   You are not passing a "pos", which is why you get an error.  Now, that's a perfectly OK thing to do, but once you omit a positional parameter, the rest have to be specified by name:  "wx.TreeCtrl.__init__(self, parent, id, size=size, style=style)".  That should get you a little farther.

[Tim Roberts]

One more thing I forgot.  In your "MyTreeCtrl.__init__", you are trying to create another MyTreeCtrl.  Don't do that.  Within that class, you already ARE the MyTreeCtrl.  You don't need "self.tree.Bind", you just need "self.Bind"

[Tim Roberts]

You confused my by setting the window position to X=-900, which places it offscreen and hence invisible.  Usually, you don't want to specify a position for your top-level window.  By removing that, your window shows up for me.

[RF]

Thank you Tim for those comments. I've edited my code accordingly. Thank you.

Sorry about that -900. I forgot to remove the minus sign before I attached the zip file. I'm using a second monitor and that -900 positions the window fairly well on my second monitor. Just 900 positions it on my primary monitor which is the screen to my laptop. My second monitor is a large LCD screen, much easier for me to see.