Python Turte Pencolor()

[Epiphe]

Hi new member here.

I work at a science center teaching kids science and coding.
We have been using Python Turtle to solve puzzels, drawing using rgb color code as a part of the solution.
But yesterday we noticed that rgb color does not work instead you have to use values between 0.0 and 1.0 instead of 1-255. t.pencolor(0.34,0.4,0.98) instead of t.pencolor(34,55,255)

I tried to google the issue and search this community but found nothing .
Is this a replit.com bug or have I missed some changes to Turtle?

[hugoondev]

Hey @Epiphe, welcome to the forums!

It works perfectly for me, maybe this article could work for you!

[Epiphe]

Hey Hugo,

Thx for the fast reply
What webbrowser do you use to run replit?
I tried similar guides but without success.

Here is an img of my code and the error msg.
I use google chrome.

[hugoondev]

Hey @Epiphe,

I use Chrome, maybe in 8-9 hours you get more responses that could help!

[IanAtCSTeach]

Hi @Epiphe thanks for your post.

I can replicate your error, and have made a Repl here for others to test too.

https://replit.com/@IanAtReplit/TurtleColourIssue

I think it might be an issue with the template, but will check with a fork of an older one and confirm.

[IanAtCSTeach]

Hi again @Epiphe

After checking with an older template and getting the same issue I dug deeper. Turns out the colormode is important.

import turtle

t = turtle.Turtle()
screen = turtle.Screen()
print(screen.colormode()) # it will be 1.0 or 255
screen.colormode(255) # this sets it to use 0-255 for each r,g,b
t.pencolor(41,253,41)
t.pendown()
t.forward(50)

Hope this helps resolve your issue.

[Epiphe]

Thank you Ian that fixed it!

Out of curiosity, what has changed? We never had to set colomode() before and always used rgb255 .

[IanAtCSTeach]

Hi @Epiphe I’m honestly not sure but remembered something about float values between 0.0 and 1.0 being a setting. Maybe the default template has changed but it’s hard to confirm. Glad it resolved the issue for you!