How I can make my mandelbrot plotter faster?? (Python) : ## Python code ##

How I can make my programm faster?
This programm calculates you the mandelbrotset and draws it with turtle.
I think the problem is in the for loop. Maybe the steps are taking too taking too much time.


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        import numpy as np
        import turtle
        turtle.ht()
        turtle.pu()
        turtle.speed(0)
        turtle.delay(0) turtle.colormode(255)

        

        i= int(input("iteration = "))
        g = int(input("accuracy  = "))
        xmin = float(input("X-min: "))
        xmax = float(input("X-max: "))
        ymin = float(input("Y-min: "))
        ymax = float(input("Y-max: "))
        cmode = int(255/i)

        input("PRESS TO START")
        for x in np.arange(xmin,xmax,1/g):
	        for y in np.arange(ymin,ymax,1/g):
		        c = x + y * 1j
		        z = 0
		        t = 1
		        for e in range(i):
			        z = z * z + c
			        if abs(z) > 3:
				        turtle.setx(g*c.real)
				        turtle.sety(g*c.imag)
				        turtle.dot(2,e*cmode,e*cmode,e*cmode)
				        t = 0

		        if t == 1:
			        turtle.setx(g*c.real)
			        turtle.sety(g*c.imag)
			        turtle.dot(2,"black")


        input("Calculated!")
        turtle.mainloop()


[Here is an example][1]


  [1]: https://i.stack.imgur.com/gacT8.png