Koch Curve Implementation in Python

Tried to create snowflake fractals using koch curve in python using turtle programming.

Author: Subhajit135

Koch Curve/koch curve.py

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+#importing the libraries
+#turtle standard graphics library for python
+from turtle import *
+
+#function to create koch snowflake or koch curve
+def snowflake(lengthSide, levels):
+    if levels == 0:
+        forward(lengthSide)
+        return
+    lengthSide /= 3.0
+    snowflake(lengthSide, levels-1)
+    left(60)
+    snowflake(lengthSide, levels-1)
+    right(120)
+    snowflake(lengthSide, levels-1)
+    left(60)
+    snowflake(lengthSide, levels-1)
+
+#main function
+if __name__ == "__main__":
+    speed(0)                    #defining the speed of the turtle
+    length = 300.0              #
+    penup()                     #Pull the pen up – no drawing when moving.
+    #Move the turtle backward by distance, opposite to the direction the turtle is headed.
+    #Do not change the turtle’s heading.
+    backward(length/2.0)        
+    pendown()  
+    for i in range(3):
+         #Pull the pen down – drawing when moving.
+         snowflake(length, 4)
+         right(120)
+    mainloop()        #To control the closing windows of the turtle