It now looks to me like the "problem" is with Python, not with PyCall; I thought the assignment pyobj.X = X would be by reference, but apparently it makes a copy ?!?
Alternatively, to achieve what I want I could do Xpy = PyArray( pyobj.X ) Now Xpy is really a reference to the array I want to manipulate. How can I now "reinterpret" Xpy (i.e. the block of memory) as a Julia Array, or other Julia data structure - specifically I want a Vector of FixedSizeArray ? Thank you. On Friday, 9 September 2016 13:18:58 UTC+1, Christoph Ortner wrote: > > Sorry - I was rushing when I wrote this. What I meant was: after the > assignment pyobj["X"] = Xpy, if I modify X in-place, this modification does > not seem to propagate to pyobj.X. I will try to put together an example. > > >
