New submission from Simon Friedberger <simon.nov2...@a-oben.org>:

It seems there is no easy way to use difflib to show a diff but only when there 
actually are differences. The SequenceMatcher has ratio() but that isn't really 
available through Differ or any of the convenience functions. Vice versa, when 
using SequenceMatcher the pretty display is not available.

----------
components: Library (Lib)
messages: 356536
nosy: simon_
priority: normal
severity: normal
status: open
title: difflib lacks a way to check if results are empty
versions: Python 3.7

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue38789>
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