Alex Rivera | Logout

Generate pretty diff HTML in Python

Asked 2009-10-16T06:39:20.023
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I have two chunks of text that I would like to compare and see which words/lines have been added/removed/modified in Python (similar to a Wiki's Diff Output).

I have tried difflib.HtmlDiff but it's output is less than pretty.

Is there a way in Python (or external library) that would generate clean looking HTML of the diff of two sets of text chunks? (not just line level, but also word/character modifications within a line)

python html diff prettify
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1 Answer

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A copy of my own answer from here.

What about DaisyDiff (Java and PHP vesions available).

Following features are really nice:

  • Works with badly formed HTML that can be found "in the wild".
  • The diffing is more specialized in HTML than XML tree differs. Changing part of a text node will not cause the entire node to be changed.
  • In addition to the default visual diff, HTML source can be diffed coherently.
  • Provides easy to understand descriptions of the changes.
  • The default GUI allows easy browsing of the modifications through keyboard shortcuts and links.
answered 2009-10-20T08:58:22.570

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