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[Jérôme Duriez <jerome.duriez@xxxxxxxxx>]

I'll try to avoid exaggeration here. My commit [1] was about a Shop /
utils function, maybe not exactly a bottom layer of yade (at least, not
in my opinion).

As illustrated by the present bug and the launchpad question, [1] could
be problematic in case of Python code (hardcoded in trunk or in users
scripts) involving some other functions exposed through boost python
with a specific type of arguments. It is true I did not foresee this
problem in [1], in spite of the discussion [2] (see also therein for the
motivations to commit [1])

As for #4 and Robert's list #1, I went through it and do not think there
is now (was ?) any problem in this list due to commit [1], and in
possible connection with the present bug.

I will look closely into py/pack/_packPredicates.


[1] https://github.com/yade/trunk/commit/1db13fb1183b9e294dc9761da76cfa4fc2791cc1
[2] https://www.mail-archive.com/yade-dev@xxxxxxxxxxxxxxxxxxx/msg13339.html, fourth item in particular...

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https://bugs.launchpad.net/bugs/1804621

Title:
  bodyNumInteractionsHistogram broken

Status in Yade:
  New

Bug description:
  See https://answers.launchpad.net/yade/+question/676284 and:

  #####################
  O.bodies.append(sphere((0,0,0),1,dynamic=False))
  O.bodies.append(sphere((0,0,1.9),1,dynamic=False))

  O.step()

  print 'BodyNumInteractions Histogram', bodyNumInteractionsHistogram(aabbExtrema())
  ####################

  which returns (with trunk version) :

  ArgumentError: Python argument types in
      yade._utils.bodyNumInteractionsHistogram(list)
  did not match C++ signature:
      bodyNumInteractionsHistogram(boost::python::tuple aabb, bool contactOnly=False)

  
  because my commit [*] changed the Python return type of aabbExtrema() from tuple to list.

  
  Possible (and easiest) fix would be to change all corresponding py::tuple aabb from py::list aabb. Agree ? 

  Or do we want this function to deal with Python tuples and not lists
  ?..


  Jérôme

  [*]
  https://github.com/yade/trunk/commit/1db13fb1183b9e294dc9761da76cfa4fc2791cc1

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