Addressing issue with "pip install itk"

Development
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I was also playing with pip installing itk, but this doesn’t seem to work at the moment.

@jcfr was looking into this. It may have to do with the pip-installed ITK and the compiled ITK libraries working with the same shared memory, each under the assumption that it is their memory to manage. I don’t know, but when I backtrace the crash it seems to happen while ITK is trying to free some memory.

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Analyzing the backtrace seems to indicate that the pip installed ITK libraries are attempting to register the ITK IO factories already loaded in Slicer through the built-in ITK:

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After talking with @thewtex , we identified a path forward and will follow up.

In a nutshell, we are evaluating approaches like these:

  • delegating the loading and registration of ITK IO to python
    or
  • configure the registration code in the C++ build so that the static variable uniquely identify a given build
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Patch is here:

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