python-aware wdiff?

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From	Roy Smith <roy@panix.com>
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Date	Mon, 14 Jul 2014 11:12:56 -0400
Subject	python-aware wdiff?
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Does anybody know of a wdiff-like tool (http://www.gnu.org/software/wdiff/) which is aware of python syntax and can show token changes instead of word changes.  Wdiff is can turn

-    if not metar.is_in_temp_range_f(situation.weather.low_temperature, situation.weather.high_temperature):
+    if not info.is_in_temp_range_f(situation.weather.low_temperature, situation.weather.high_temperature):

into

    if not [-metar.is_in_temp_range_f(situation.weather.low_temperature,-] {+info.is_in_temp_range_f(situation.weather.low_temperature,+} situation.weather.high_temperature):

but what I really want is:

    if not [-metar-]{+info+}.is_in_temp_range_f(situation.weather.low_temperature, situation.weather.high_temperature):

which makes it more obvious that the change is just the one token.  Does such a tool exist?

---
Roy Smith
roy@panix.com

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python-aware wdiff? Roy Smith <roy@panix.com> - 2014-07-14 11:12 -0400

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