Package for fast plotting of many data points in Python?

Jeremy Sanders jeremy+complangpython at
Fri Jul 10 10:51:29 CEST 2009

tt-industries wrote:

> Hi,
> I am programming a oscilloscope module in Python. For this reason, I
> want to plot very many data points as fast as possible. This can be
> more than 100 000 at once. So far I have been using the ploting module
> of wxPython. However, it becomes unstable for more than 25000 points.
> Can someone recommend me a faster plotting library? It would be really
> cool if one could embed this in wxPython. If someone has an idea I
> would be very glad about answer.

Veusz can plot a line with that many points with that many points in a 
couple of seconds on my system. It's a bit faster without antialiasing, 
slower if you want to actually plot markers at each position.


Jeremy Sanders

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