How to over come this pdfviewer "No module named viewer" error in wxpython?

Question

I am trying to create an application that has a feature of displaying pdf files and decided to use wxpython to do this due to the pdfviewer class.

I made sure that I have pyPDF2 and pyPdf. (can use either but installed both to see if that was the issue.)

However when I run the code at the bottom. (taken from here) (got rid of the ``` on lines 31 and 17. Added wx before .VSCROLL and .SUNKEN_BORDER on line 16) I get the message:

Traceback (most recent call last):
  File "E:\Test\pdf.py", line 4, in <module>
    from wx.lib.pdfviewer import pdfViewer, pdfButtonPanel
  File "C:\Python34\lib\site-packages\wx\lib\pdfviewer\__init__.py", line 124, in <module>
    from viewer import pdfViewer
ImportError: No module named 'viewer'

When I then went to that package file to confirm that the module viewer was there I then ran it and line 124 worked. It just doesnt work when running through this example file which I assume is the same as when it will be in my application.

Does anyone know what I need to do to fix this. This module looks perfect for what I plan on doing.

Thanks

import wx
import wx.lib.sized_controls as sc

from wx.lib.pdfviewer import pdfViewer, pdfButtonPanel

class PDFViewer(sc.SizedFrame):
    def __init__(self, parent, **kwds):
        super(PDFViewer, self).__init__(parent, **kwds)

        paneCont = self.GetContentsPane()
        self.buttonpanel = pdfButtonPanel(paneCont, wx.NewId(),
                                wx.DefaultPosition, wx.DefaultSize, 0)
        self.buttonpanel.SetSizerProps(expand=True)
        self.viewer = pdfViewer(paneCont, wx.NewId(), wx.DefaultPosition,
                                wx.DefaultSize,
                                wx.HSCROLL|wx.VSCROLL|wx.SUNKEN_BORDER)
        self.viewer.UsePrintDirect = False
        self.viewer.SetSizerProps(expand=True, proportion=1)

        # introduce buttonpanel and viewer to each other
        self.buttonpanel.viewer = self.viewer
        self.viewer.buttonpanel = self.buttonpanel


if __name__ == '__main__':
    import wx.lib.mixins.inspection as WIT
    app = WIT.InspectableApp(redirect=False)


    pdfV = PDFViewer(None, size=(800, 600))
    pdfV.viewer.UsePrintDirect = False
    pdfV.viewer.LoadFile(r'a path to a .pdf file')
    pdfV.Show()

    app.MainLoop()

Answer 1

This needed a bit of work to get pdfviewer to work on Py3, I did a PR for it. Not the PR switches from pyPDF to PyPDF2 as the former does not support Py3 and it also depends on PR 172 someone has done to get PyPDF2 to work correctly on Py3.