How to get png or jpeg or bmp pictures in wxpython

Question

I want to search for png, jpeg and bmp pictures but it doesn't seems to work.

def onClick(self,Event):
        wildcard='PNG files (*.png)|*.png|'|'BMP files (*.bmp)|*.bmp|'|'JPEG files (*.jpg)|*.jpg|'
        openFileDialog = wx.FileDialog(self, "Open", "", "", wildcard,wx.FD_OPEN | wx.FD_FILE_MUST_EXIST)
        openFileDialog.ShowModal()

Here is the error and i don't know how to resolve it

wildcard='PNG files (*.png)|*.png|'|'BMP files (*.bmp)|*.bmp|'|'JPEG files (*.jpg)|*.jpg|'
TypeError: unsupported operand type(s) for |: 'str' and 'str'

Answer 1

Doing a string | string does not make sense. That means that

'something'|'something'

throws the exception above. All of your | characters should be a part of the wildcard string.

For just pngs use:

'PNGs (*.png)|*.png'

For gifs and jpegs use:

'Various image formats - png,jpg|*.png;*.jpg'

If you want to let the user choose:

'Various image formats|*.png;*.jpg|Just BMPs (*.bmp)|*.bmp'