[WxPython] accessing wxwidgets

[jim]

This is something simple that I cannot get my head around!
In one module I set up a wx gui, that has some buttons which are bound to events, and some like wxlabel which are not.
this is imported into a second module, within which the attributes for the widgets are manipulated eg "button_1.Hide()" This works fine for the widgets that are bound to events, but not if that is not the case eg label_1.Hide(). I am pretty new at this and have tried everything to acheive this unsuccessfully

#first module  first.py

import wx

class MyFrame(wx.Frame):
    def __init__(self, *args, **kwds):
        # begin wxGlade: MyFrame.__init__
        kwds["style"] = kwds.get("style", 0) | wx.DEFAULT_FRAME_STYLE
        wx.Frame.__init__(self, *args, **kwds)
     
        self.SetSize((400, 300))
        self.SetTitle("first")

        self.panel_1 = wx.Panel(self, wx.ID_ANY)

        label_1 = wx.StaticText(self.panel_1, wx.ID_ANY, "Password:", style=wx.ALIGN_CENTER_HORIZONTAL)
        label_1.SetMinSize((80, 30))
        label_1.SetFont(wx.Font(12, wx.FONTFAMILY_DEFAULT, wx.FONTSTYLE_NORMAL, wx.FONTWEIGHT_BOLD, 0, ""))
        sizer_1.Add(label_1, 0, wx.LEFT, 50)

        sizer_1.Add(sizer_4, 1, wx.EXPAND, 0)

        self.button_1 = wx.Button(self.panel_1, wx.ID_ANY, "hide")
        self.button_1.SetMinSize((80, 23))
        sizer_1.Add(button_1, 1, wx.LEFT, 50)
        self.Layout()
        self.Bind(wx.EVT_BUTTON, self.hide, self.button_1)
   
    def hide(self, event):  # wxGlade: MyFrame.<event_handler>
        print("Event handler 'hide' not implemented!")
        event.Skip()

class MyApp(wx.App):
    def OnInit(self):
        self.frame = MyFrame(None, wx.ID_ANY, "")
        self.SetTopWindow(self.frame)
        self.frame.Show()
        return True

# end of class MyApp

    def __del__( self ):
        pass
--------------------------------------------------------------

# second module "second.py"
import wx
import first

class MyApp(fileHide.MyFrame):
    def  __init__(self,parent):
        first.MyFrame. __init__(self,parent)
        
    def hide(self, event): 
        print('hide')
        self.button_1.Hide()

app = wx.App(False)
        
frame = MyApp(None) 
frame.Show(True)

frame.label_1.Hide()   # error no frame has no attribute label_1 ....

app.MainLoop()

So I want to access label_1 in the second module, how can I do this?
Thanks in advance

[Yoriz]

To enable frame.label_1.Hide() to work, label_1 needs to be an attribute of MyFrame in first.py
to do this change label_1 to self.label_1

The code you posted did not run, I tided it up and made it runnable
first.py

import wx


class MyFrame(wx.Frame):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self._create_controls()
        self._setup()
        self._create_sizers()
        self._create_binds()

    def on_button_1(self, event):
        print("Event handler 'on_button_1' not implemented!")
        event.Skip()

    def _create_controls(self):
        self.panel_1 = wx.Panel(self, wx.ID_ANY)
        self.label_1 = wx.StaticText(
            self.panel_1, label="Password:", style=wx.ALIGN_CENTER_HORIZONTAL
        )
        self.button_1 = wx.Button(self.panel_1, label="hide")

    def _setup(self):
        self.SetSize((400, 300))
        self.SetTitle("first")
        width, height = 80, 30
        self.label_1.SetMinSize((width, height))
        self.label_1.SetFont(
            wx.Font(
                12,
                wx.FONTFAMILY_DEFAULT,
                wx.FONTSTYLE_NORMAL,
                wx.FONTWEIGHT_BOLD,
                0,
                "",
            )
        )
        width, height = 80, 23
        self.button_1.SetMinSize((width, height))

    def _create_sizers(self):
        panel_sizer = wx.BoxSizer(wx.VERTICAL)
        self.panel_1.SetSizer(panel_sizer)
        # sizer_1.Add(label_1, 0, wx.LEFT, 50) # sizer_1 not defined
        # sizer_1.Add(sizer_4, 1, wx.EXPAND, 0) # sizer_1 & sizer_4 not defined
        # sizer_1.Add(button_1, 1, wx.LEFT, 50) # sizer_1 missing, button_1 not defined
        # sizer_1 = wx.BoxSizer(orient=wx.VERTICAL)
        panel_sizer.Add(self.label_1, 0, wx.LEFT, 50)
        panel_sizer.Add(self.button_1, 1, wx.LEFT, 50)
        self.panel_1.Layout()

    def _create_binds(self):
        # self.Bind(wx.EVT_BUTTON, self.hide, self.button_1) # do the bind directly on the button instance as follows
        self.button_1.Bind(wx.EVT_BUTTON, self.on_button_1)


class MyApp(wx.App):
    def OnInit(self):
        self.frame = MyFrame(None)
        self.SetTopWindow(self.frame)
        self.frame.Show()
        return True


if __name__ == "__main__":
    my_app = MyApp(False)
    my_app.MainLoop()

second.py

import wx

import first


# class MyApp(fileHide.MyFrame): # fileHide not defined
class MyFrame2(first.MyFrame):
    def __init__(self, parent):
        super().__init__(parent)

    def on_button_1(self, event):
        print("hide")
        self.button_1.Hide()


if __name__ == "__main__":
    app = wx.App(False)
    frame = MyFrame2(None)
    frame.Show(True)
    frame.label_1.Hide()
    app.MainLoop()

[jim]

Thank you so much! Sorry it did not run, I missed some changes in the simplification. I used wxglade to make the gui and it obviiously didn't put in the "self" for the label. The only bit I do not understand is the "super().__init__(*args, **kwargs)" line, can you tell me what that does?

[Yoriz]

Python’s super() considered super!
Raymond Hettinger - Super considered super! - PyCon 2015

[jim]

Thanks!

[deanhystad]

You can configure labels to store as attribute. Click on the label in the designer and look at the "Common" tab of the "Properties" frame. There you will see a checkbox "Store as attribute". It is not checked by default.