code: def open_file(self, title="Open File", initialDir="~", fileTypes="*|All Files", rememberAs=None, **kwargs):
          
          if rememberAs is not None:
              return self._run_kdialog(title, ["--getopenfilename", initialDir, fileTypes, ":" + rememberAs], kwargs)
          else:
              return self._run_kdialog(title, ["--getopenfilename", initialDir, fileTypes], kwargs)
docs: Show an Open File dialog
          
          Usage: C{dialog.open_file(title="Open File", initialDir="~", fileTypes="*|All Files", rememberAs=None, **kwargs)}
          
          @param title: window title for the dialog
          @param initialDir: starting directory for the file dialog
          @param fileTypes: file type filter expression
          @param rememberAs: gives an ID to this file dialog, allowing it to open at the last used path next time
          @return: a tuple containing the exit code and file path
          @rtype: C{DialogData(int, str)}