filechooser.py

    ''':class:`~kivy.properties.ListProperty`, defaults to [], equal to '\*'.
    The filters to be applied to the files in the directory.

    The filters are not reset when the path changes. You need to do that
    yourself if desired.

    There are two kinds of filters :

    filename patterns : e.g. ['\*.png'].
        You can use the following patterns:

        ========== =================================
        Pattern     Meaning
        ========== =================================
        \*         matches everything
        ?          matches any single character
        [seq]      matches any character in seq
        [!seq]     matches any character not in seq
        ========== =================================

    And callables :
        .. versionchanged:: 1.4.0
        if the filter is a callable (function or method). It will be called with
        the path and the file name as arguments for each file in dir. The callable
        should returns True to indicate a match and False overwise.