gh-123614: Add save function to turtle.py

[yngvem]

Adds a save(filename: str, overwrite: bool = False)-function to turtle.py with the following input validation:

• FileNotFoundError that explicitly state that the directory is missing if someone tries to save to an non-existing directory
• ValueError if the file exists and overwrite=False
• ValueError if the file does not end with ps or eps

Co-authored-by: Marie Roald [email protected]

• Issue: A save function in the Turtle module #123614

[ghost]

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[nineteendo]

Could you add documentation? And I would raise FileExistsError if the file already exists and overwrite is false.

[MarieRoald]

We have updated the documentation now and changed the code to use the FileExistsError and make sure that the all pipeline checks pass

[hauntsaninja]

Thank you!