python - "AttributeError: 'Turtle' object has no attribute 'colormode'" despite Turtle.py having colormode atttribute -

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i tried running code uses turtle library on this site, shown here,

import turtle import random  def main():     tlist = []     head = 0     numturtles = 10     wn = turtle.screen()     wn.setup(500,500)     in range(numturtles):         nt = turtle.turtle()   # make new turtle, initialize values         nt.setheading(head)         nt.pensize(2)         nt.color(random.randrange(256),random.randrange(256),random.randrange(256))         nt.speed(10)         wn.tracer(30,0)         tlist.append(nt)       # add new turtle list         head = head + 360/numturtles      in range(100):         moveturtles(tlist,15,i)      w = tlist[0]     w.up()     w.goto(0,40)     w.write("how think ",true,"center","40pt bold")     w.goto(0,-35)     w.write("computer scientist",true,"center","40pt bold")  def moveturtles(turtlelist,dist,angle):     turtle in turtlelist:   # make every turtle on list same actions.         turtle.forward(dist)         turtle.right(angle)  main()

in own python editor , got error:

turtle.turtlegraphicserror: bad color sequence: (236, 197, 141)

then, based on answer on another site, added in line before "nt.color(......)"

nt.colormode(255)

now it's showing me error

attributeerror: 'turtle' object has no attribute 'colormode'

okay, checked python library , looked contents of turtle.py. colormode() attribute there. making code able run on original site not on own computer?

the issue turtle object (nt) doesn't have colormode method. there 1 in turtle module though.

so need:

turtle.colormode(255)

instead of 

nt.colormode(255)

edit: try clarify question in comment, suppose create module called test.py, function, , class, 'test':

# module test.py  def colormode():     print("called colormode() function in module test")  class test     def __init__(self):         pass

now, use module:

import test  nt = test.test()  # created instance of class (like `turtle.turtle()`) # nt.colormode()  # won't work, since `colormode` isn't method in `test` class test.colormode()  # works, since `colormode` defined directly in `test` module

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