Re: [Matplotlib-users] "ValueError: oridinal must be >= 1" with 0.98.1 - non with 0.98.0

[Darren D. <dsd...@gm...>]

On Monday 23 June 2008 23:37:09 Adam Mercer wrote:
> Hi
>
> Just upgraded to matplotlib-0.98.1, and a code that worked with 0.98.0
> is now failing with the following error:

Please, include a brief standalone script that demonstrates the problem when 
reporting problems.

> Traceback (most recent call last):
>   File "./plot_workout.py", line 126, in <module>
>     time_plot = time_axes.plot_date(times_dates, times, 'bo-')
>   File "/opt/local/lib/python2.5/site-packages/matplotlib/axes.py",
> line 3081, in plot_date
>     self.xaxis_date(tz)
>   File "/opt/local/lib/python2.5/site-packages/matplotlib/axes.py",
> line 2015, in xaxis_date
>     locator.refresh()
>   File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> line 540, in refresh
>     dmin, dmax = self.viewlim_to_dt()
>   File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> line 436, in viewlim_to_dt
>     return num2date(vmin, self.tz), num2date(vmax, self.tz)
>   File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> line 233, in num2date
>     if not cbook.iterable(x): return _from_ordinalf(x, tz)
>   File "/opt/local/lib/python2.5/site-packages/matplotlib/dates.py",
> line 156, in _from_ordinalf
>     dt = datetime.datetime.fromordinal(ix)
> ValueError: ordinal must be >= 1
>
> Any ideas?
>
> Cheers
>
> Adam
>
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