backend_tkagg.py 文件源码

def save_figure(self, *args):
        fs = FileDialog.SaveFileDialog(master=self.window,
                                       title='Save the figure')
        try:
            self.lastDir
        except AttributeError:
            self.lastDir = os.curdir

        fname = fs.go(dir_or_file=self.lastDir) # , pattern="*.png")
        if fname is None: # Cancel
            return

        self.lastDir = os.path.dirname(fname)
        try:
            self.canvas.print_figure(fname)
        except IOError as msg:
            err = '\n'.join(map(str, msg))
            msg = 'Failed to save %s: Error msg was\n\n%s' % (
                fname, err)
            error_msg_tkpaint(msg)