Save Python turtle canvas as a .jpeg or other file type which can be saved on top of -

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i have created turtle program draws many things in many sizes based on user input. however, want include "save" button opens file dialog , allows user save current canvas .jpeg or other file type compatible macintosh. most efficient , direct way implement file dialog , save method in canvas saves canvas file (that can saved on top of afterwards if save pressed again in same window) on directory user chooses? regarding appreciated! :)

note: have tried researching around ways in python 3.x, getting ways python 2.x.


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