IDLE WARNING: The version of Tcl/Tk (8.5.9) in use may be unstable

If you install the latest release of Python for Mac OS X 64-bit/32-bit and run IDLE, you may get an error like this one:

>>> WARNING: The version of Tcl/Tk (8.5.9) in use may be unstable. Visit for current information.

Visit and you’ll see:

IDLE-tcltkClick on the Install link, which takes you to a page with these options:

download-tclThis is where I went wrong initially. I downloaded and installed the 8.6 version, but I still got the error. Jason Briggs explains why here. Apparently, IDLE is looking for the latest 8.5 version, so the one to download is the one I circled above.

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