New submission from Dan Snider:

Objects with a 500,000+ character __repr__ will cause the IDLE shell to hang 
and thus lose any progress on open windows. 200,000 (on a decent system) seems 
to be the tipping point where it can never recover.

assignee: terry.reedy
components: IDLE
messages: 300036
nosy: bup, terry.reedy
priority: normal
severity: normal
status: open
title: IDLE hangs with absurdly long __repr__s
versions: Python 3.6, Python 3.7

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