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##Python 2/3, 169 167 150 111 98 78 Bytes

Note that the import is not included in the byte count, according to the challenge specs.

Thanks to @AlexHall for saving 39(!) bytes and @nedla2004 for another 13

from turtle import* o=[90] for z in o*9:o+=[90]+[-x for x in o[::-1]] fd(5) for i in o:rt(i);fd(5) 

Starts by generating a list or right (90) and left (-90) turns, then goes through the list and moves the turtle.

Generated Output:

EDIT: If this is too boring too watch, add speed(0) right before the first fd(5). It will run the same, except the turtle will move much faster.

Python 2/3, 169 167 150 111 98 78 Bytes

Note that the import is not included in the byte count, according to the challenge specs.

Thanks to @AlexHall for saving 39(!) bytes and @nedla2004 for another 13

from turtle import* o=[90] for z in o*9:o+=[90]+[-x for x in o[::-1]] fd(5) for i in o:rt(i);fd(5) 

Starts by generating a list or right (90) and left (-90) turns, then goes through the list and moves the turtle.

Generated Output:

EDIT: If this is too boring too watch, add speed(0) right before the first fd(5). It will run the same, except the turtle will move much faster.

##Python 2/3, 169 167 150 111 98 Bytes

Thanks to @AlexHall for saving 39(!) bytes and @nedla2004 for another 13

from turtle import* o=[90] for z in o*9:o+=[90]+[-x for x in o[::-1]] fd(5) for i in o:rt(i);fd(5) 

Starts by generating a list or right (90) and left (-90) turns, then goes through the list and moves the turtle.

Generated Output:

EDIT: If this is too boring too watch, add speed(0) right before the first fd(5). It will run the same, except the turtle will move much faster.

##Python 2/3, 169 167 150 111 98 78 Bytes

Note that the import is not included in the byte count, according to the challenge specs.

Thanks to @AlexHall for saving 39(!) bytes and @nedla2004 for another 13

from turtle import* o=[90] for z in o*9:o+=[90]+[-x for x in o[::-1]] fd(5) for i in o:rt(i);fd(5) 

Starts by generating a list or right (90) and left (-90) turns, then goes through the list and moves the turtle.

Generated Output:

EDIT: If this is too boring too watch, add speed(0) right before the first fd(5). It will run the same, except the turtle will move much faster.

##Python 2, 169 167 150 111 98 Bytes

Thanks to @AlexHall for saving 39(!) bytes and @nedla2004 for another 13

from turtle import* o=[90] for z in o*9:o+=[90]+[-x for x in o[::-1]] fd(5) for i in o:rt(i);fd(5) 

Starts by generating a list or right (90) and left (-90) turns, then goes through the list and moves the turtle.

Generated Output:

EDIT: If this is too boring too watch, add speed(0) right before the first fd(5). It will run the same, except the turtle will move much faster.

##Python 2/3, 169 167 150 111 98 Bytes

Thanks to @AlexHall for saving 39(!) bytes and @nedla2004 for another 13

from turtle import* o=[90] for z in o*9:o+=[90]+[-x for x in o[::-1]] fd(5) for i in o:rt(i);fd(5) 

Starts by generating a list or right (90) and left (-90) turns, then goes through the list and moves the turtle.

Generated Output:

EDIT: If this is too boring too watch, add speed(0) right before the first fd(5). It will run the same, except the turtle will move much faster.