Re: image files packaged into single file executalble py pyinstaller

On 3/11/17 6:27 pm, Johan Vromans wrote:
> On Thu, 2 Nov 2017 23:14:13 +1100, "Brendan Simon (eTRIX)"
> <[email protected]> wrote:
>> I want to build my wxpython app as a Mac app bundle, using
>> pyinstaller.  I can get it to run ok on my PC, because the images
>> that were created via wxglade actually exist on my Mac.  i.e. the
>> hardcoded absolute paths that wxglade generates will only work on my
>> Mac.
> I don't know about python, but I resolved this in Perl by overriding
> the Wx::Bitmap::new method. Not nice, but effective :)

Thanks Johan.  I took some inspiration from this and came up with the
following for Python.  It works by remapping `wx.Bitmap` to my custom
derived class.

Let me know if there are any issues with it, or if there is a better way
of doing things.

Put a, `import wxglade_pyinstaller` statement in the wxglade extra code
section for the bitmap, and created the following module called
"wxglade_pyinstaller.py"

    """
    Various utilities and helpers to handle pyinstaller issues.
    """

    import wx
    import sys
    import os

    ## taken from stackoverflow re accessing data files within
    pyinstaller bundle.
    def resource_path(relative_path):
        """Get absolute path to resource, works for dev and for
    PyInstaller."""
        base_path = getattr(sys, '_MEIPASS',
    os.path.dirname(os.path.abspath(__file__)))
        return os.path.join(base_path, relative_path)

    ## get a reference to original wx.Bitmap (just in case)
    wxBitmap = wx.Bitmap

    ## My customised wx.Bitmap, which obtains the location of the bitmap
    ## using the `resource_path` function above.
    class MyBitmap(wxBitmap):
        def __init__(self, *args, **kwargs):
            try:
                kwargs['name'] = resource_path(kwargs['name'])
            except KeyError:
                args = list(args)
                args[0] = resource_path(args[0])
            ## call original wx.Bitmap
            wxBitmap.__init__(self, *args, **kwargs)

    ## Remap wx.Bitmap to our customised version.
    wx.Bitmap = MyBitmap

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