On 28/09/15 22:25, Jerzy Karczmarczuk wrote: > > Le 28/09/2015 21:03, Benjamin Root a écrit : >> Where does he multiply a list by a float? The traceback shows the >> multiplication happening much further down in the draw stack. > > Look, Benjamin Root, I don't know, and I will not "investigate" where > this operation happens. The diagnosis is a standard Python message. > Thus, I took the program of Shakhti Kannan, and in a few seconds I changed > > > x = [1.0, 2.0, 3.0] into x = np.array([1.0, 2.0, 3.0]) > > and in update_line: x.append(1.0) into x=np.concatenate((x,[1.0])) > > And the program began to run without error messages. So, please, these > are FACTS: somewhere the lists x,y,z get down in this draw stack.
No one is doubting that. >> That shouldn't matter. ax.plot() accepts lists as valid inputs and it >> should be converting them into numpy arrays under the hood. > > There are two different issues, accepting any sequences/iterators is > one, converting them into arrays - another one. This second operation > visibly doesn't take place. And this is a bug in matplotlib that needs to be fixed. Your solution is just a workaround to an existing problem in matplotlib. Cheers, Daniele ------------------------------------------------------------------------------ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
