Ok.
I tried to do the job through the old way and it's working.
But I have the latest version (0.91.2). Is it possible that my version
wasn't successfully installed and that an older one is doing the job ?
Anyway, thanks a lot for the (fast) help.
Johan
2008/4/29 John Hunter <[EMAIL PROTECTED]>:
> On Tue, Apr 29, 2008 at 12:10 PM, Johan Mazel <[EMAIL PROTECTED]>
> wrote:
> > When you wrote "import matplotlib.ticker", you meant "from
> matplotlib.dates
> > import ticker" ?
>
> No sorry, I meant "import matplotlib.ticker as ticker"
>
> > I think I have a bug or something because I get an error like
> "ValueError:
> > setting an array element with a sequence." with a lot of debug stuff
> from
> > python and MatPlotLib
> > The line concerned is the one where I do plot(datetime_list,data_list).
> > It's very strange because just before I use "my_datetime.strftime("%d %H
> %M
> > %S")" with my_datetime as an element of my list and it works perfectly.
>
>
> Possibly your matplotlib version is a bit old. With the latest
> release (0.91.2) you can pass sequences of native datetimes in. For
> older versions, you had to convert your dates to numbers first:
>
> import matplotlib.dates as mpldates
>
> d = mpldates.date2num(datetime_list)
> ax.plot_date(d, ydata)
>
> JDH
>
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