"image viewer working" not working about python101code

[echidne]

To have your code working on my computer I had to modify as follow :

# image_viewer_working.py

import wx

class ImagePanel(wx.Panel):

    def __init__(self, parent, image_size):
        super().__init__(parent)
        self.max_size = 240

        img = wx.Image(*image_size)
        self.image_ctrl = wx.StaticBitmap(self, 
                                          bitmap=wx.Bitmap(img))

        browse_btn = wx.Button(self, label='Browse')
        browse_btn.Bind(wx.EVT_BUTTON, self.on_browse)

        self.photo_txt = wx.TextCtrl(self, size=(200, -1))

        main_sizer = wx.BoxSizer(wx.VERTICAL)
        hsizer = wx.BoxSizer(wx.HORIZONTAL)

        main_sizer.Add(self.image_ctrl, 0, wx.ALL, 5)
        hsizer.Add(browse_btn, 0, wx.ALL, 5)
        hsizer.Add(self.photo_txt, 0, wx.ALL, 5)
        main_sizer.Add(hsizer, 0, wx.ALL, 5)

        self.SetSizer(main_sizer)
        main_sizer.Fit(parent)
        self.Layout()

    def on_browse(self, event):
        """
        Browse for an image file
        @param event: The event object
        """
        wildcard = "JPEG files (*.jpg)|*.jpg"
        with wx.FileDialog(None, "Choose a file",
                           wildcard=wildcard,
                           style=wx.ID_OPEN) as dialog:
            if dialog.ShowModal() == wx.ID_OK:
                self.photo_txt.SetValue(dialog.GetPaths()[0]) # GetPath() to GetPaths()[0]
                self.load_image()

    def load_image(self):
        """
        Load the image and display it to the user
        """
        filepath = self.photo_txt.GetValue()
        img = wx.Image(filepath, wx.BITMAP_TYPE_ANY)

        # scale the image, preserving the aspect ratio
        W = img.GetWidth()
        H = img.GetHeight()
        if W > H:
            NewW = self.max_size
            NewH = self.max_size * H // W # Argument of Scale should be integer so I changed / to //
        else:
            NewH = self.max_size
            NewW = self.max_size * W // H  # Argument of Scale should be integer so I changed / to //
        img = img.Scale(NewW,NewH)

        self.image_ctrl.SetBitmap(wx.Bitmap(img))
        self.Refresh()


class MainFrame(wx.Frame):

    def __init__(self):
        super().__init__(None, title='Image Viewer')
        panel = ImagePanel(self, image_size=(240,240))
        self.Show()


if __name__ == '__main__':
    app = wx.App(redirect=False)
    frame = MainFrame()
    app.MainLoop()

[driscollis]

Sorry for the delay. This isn't how it worked when I originally wrote the code, so my guess is that something changed with the latest release. Anyway, I updated the code to make it work in the way you suggested