Traceback (most recent call last): File "H:\model\pyscripts\plot_int.py", line 282, in ? plot_date(datum,U1,xdate=True, ydate=False) File "C:\Python24\Lib\site-packages\matplotlib\pylab.py", line 2040, in plot_date ret = gca().plot_date(*args, **kwargs) File "C:\Python24\Lib\site-packages\matplotlib\axes.py", line 2161, in plot_date ret = self.plot(x, y, fmt, **kwargs) File "C:\Python24\Lib\site-packages\matplotlib\axes.py", line 2123, in plot for line in self._get_lines(*args, **d): File "C:\Python24\Lib\site-packages\matplotlib\axes.py", line 310, in _grab_next_args yield self._plot_3_args(remaining, **kwargs) File "C:\Python24\Lib\site-packages\matplotlib\axes.py", line 281, in _plot_3_args ...