Strange problem with wx.FileDialog on Windows

wxPython Users
1

I’m having a strange result show up for a user of my software in Greece. The code in question is simply this:

        dlg = wx.FileDialog(self, 'Choose GSAS-II project file name', pth, self.newGPXfile,
            'GSAS-II project file (*.gpx)|*.gpx',wx.FD_SAVE|wx.FD_OVERWRITE_PROMPT)

This code works for thousands of people.

The FileDialog is failing with an error where it is reporting that the file (to be created) is not found. The directory has been selected from a Windows file browser, so I know that exists. The file, of course, should not yet exist. I have had the user select shorter versions of the path (for example, directly into the Documents directory, avoiding the directory name with spaces) and that does not help. Saving into a directory that is not mapped to OneDrive (the desktop) does work OK.

image
image1013×675 97.1 KB

I have seen another strange thing for this user where UTF-8 is not their default, so that might be related, but I’m not a Windows user and don’t know what Windows settings would be related to that.

I’m stumped. Any suggestions would be welcome.

FWIW This is wx 4.2.3 in Python 3.13.7 on Windows 11.

2

Hi,

I’m not sure that the cause of the problem is this one, but is it possible that the user has to explicitly authorise your app to make changes in specific folders? I have seen it happening. It’s worth checking if Windows Defender’s “Controlled Folder Access” is blocking app permissions to write files.

It’s of course also possible that this is yet another funny behaviour of OneDrive, whose existence has brought pain to thousands of developers…

Andrea.

1 Like