a thingy that acts like a cpu monitor

stuff.py

class animatedplot():
    def __init__(self,size):
        self.size=size
        self.utiliz=np.ones(self.size)*np.nan
        self.timearr=np.ones(self.size)*np.nan

        self.fig = plt.figure()
        self.ax = self.fig.add_subplot(1,1,1)
        self.ln, = plt.plot(self.utiliz,self.timearr)
        self.anim = FuncAnimation(self.fig,self.update,frames = np.arange(1000),
                                  #init_func=self.animinit(),
                                  blit=False
                                  )
        plt.show()
    def animinit(self):
        self.ax.set_xlim(np.nanmin(self.timearr)*0.99,np.nanmax(self.timearr)*1.01)
        self.ax.set_ylim(np.nanmin(self.utiliz)*0.99,np.nanmax(self.utiliz)*1.01)
        return self.ln,

    def update(self,frame):
        new_timearr = np.empty_like(self.timearr)
        new_utiliz = np.empty_like(self.utiliz)
        new_timearr[1:] = self.timearr[:-1]
        new_utiliz[1:] = self.utiliz[:-1]
        self.timearr = new_timearr
        self.utiliz = new_utiliz
        percent = psutil.cpu_percent(interval=None)
        self.utiliz[0]=percent
        self.timearr[0] = time.time()
        self.ln.set_data(self.timearr,self.utiliz)
        self.ax.set_xlim(np.nanmin(self.timearr)-0.1,np.nanmax(self.timearr)+0.1)
        self.ax.set_ylim(np.nanmin(self.utiliz)-0.1,np.nanmax(self.utiliz)+0.1)
        #self.ax.figure.canvas.draw()
        return self.ln,
a = animatedplot(100)