[issue1702036] Make Turtle thread-safe so it does not crash

[Carol Willing]

Carol Willing  added the comment:

Hi all,

I'm triaging 'turtle' open issues. I'm going to close this issue with a 
resolution of not a Turtle bug. Thanks.

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nosy: +willingc
resolution:  -> not a bug
stage: test needed -> resolved
status: open -> closed

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[issue1702036] Make Turtle thread-safe so it does not crash

[Lita Cho]

Lita Cho added the comment:

Hey! So I have been investigating this bug, but I wanted to know is the issue 
the fact that korka wants to create multiple turtles or do you really want to 
use multiple threads with Turtle? I feel like this crash is due to Tkinter not 
being thread safe and I am not sure how turtle can go about working around this 
other than creating a scheduler within turtle.

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[issue1702036] Make Turtle thread-safe so it does not crash

[Lita Cho]

Lita Cho added the comment:

I also want to note that you can create duplicate turtles by using clone, and I 
am not sure why you would use multiple inheritance to draw more than 1 turtle 
running around. I didn't think turtle was meant to be used this way. In order 
to draw multiple turtles, I would use the clone method.

Is this to draw turtles running at the same time?

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[issue1702036] Make Turtle thread-safe so it does not crash

[Mark Lawrence]

Changes by Mark Lawrence breamore...@yahoo.co.uk:


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nosy: +Lita.Cho

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[issue1702036] Make Turtle thread-safe so it does not crash

[Lita Cho]

Changes by Lita Cho lita@gmail.com:


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nosy: +jesstess

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[issue1702036] Make Turtle thread-safe so it does not crash

[Raymond Hettinger]

Changes by Raymond Hettinger raymond.hettin...@gmail.com:


--
priority: normal - low
versions: +Python 3.5 -Python 3.2

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[issue1702036] Make Turtle thread-safe so it does not crash

[Alexander Belopolsky]

Alexander Belopolsky belopol...@users.sourceforge.net added the comment:

I think threading is a red herring here.  The issue is really a duplicate of 
#6639.

--
nosy: +belopolsky
status: open - pending
superseder:  - turtle: _tkinter.TclError: invalid command name .10170160

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[issue1702036] Make Turtle thread-safe so it does not crash

[Alexander Belopolsky]

Alexander Belopolsky belopol...@users.sourceforge.net added the comment:

On a closer look at the first post, I see that there are two parts to the 
issue.  The first is indeed a duplicate of #6639, but the second is thread 
related.   I am attaching the OP's code in a script file for convenience.  
Running ninja.py under python3 produces 

RuntimeError: main thread is not in main loop

in every ninja thread.  This looks like tkinter limitation, but I think it is 
possible to work around it in turtle, so this is a valid feature request.

+1

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status: pending - open

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[issue1702036] Make Turtle thread-safe so it does not crash

[Alexander Belopolsky]

Changes by Alexander Belopolsky belopol...@users.sourceforge.net:


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nosy: +gregorlingl

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[issue1702036] Make Turtle thread-safe so it does not crash

[Terry J. Reedy]

Changes by Terry J. Reedy tjre...@udel.edu:


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title: Turtle isn't thread-safe (crashes) - Make Turtle thread-safe so it does 
not crash
versions: +Python 3.2 -Python 2.7, Python 3.1

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