Reading from file and storing in array

Hello, I am trying to read a text file store each line in a different array.
Then use Python Turtle to draw those coordinates.
Right now I am unable to build that array. How do I store each line in a different array and how do I reference it?

For example this is what I have now, and it works. but only for the first line.
Once each line of plot points is in a different array, I need it draw the next array.

import turtle
import os

file_directory=os.path.dirname(__file__)
movements=""
with open(file_directory+'\\plot_points.txt',"r") as themovement:
    movements=movements+themovement.readlines()
themovement.close()

mlist=movements.split(",")
print(mlist)
for counter in range(0,len(mlist)):
    mlist[counter] = int(mlist[counter])

turtle.color("black", "darkgrey")
total_length=int(len(mlist))
turtle.penup()
turtle.goto(mlist[0],mlist[1])
turtle.pendown()
turtle.begin_fill()

for counter in range(2, total_length, 2):
        turtle.goto(mlist[counter],mlist[counter+1])
turtle.end_fill()
turtle.hideturtle()
input("Press Any Key")  

So your adjustment (well, the primary adjustment anyway) lies here.
Have a read about what readlines actually does, and see if you can get there. You’ve already got examples of list referencing in your script (though you’re calling them arrays, technically they’re lists.)