Update CI Python version to 3.12.

[BenZickel]

See #3424 for details.

[fritzo]

LGTM once ci passes. I very much appreciate your maintenance contributions!

[BenZickel]

@fritzo , last remaining failure is exactly at this line. The unpickled easyguide actually works (the line after the line I mentioned).

The error message is

File "c:\SW\pyro-ppl\pyro\nn\module.py", line 527, in __call__
    result = super().__call__(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\ProgramData\Anaconda3\Lib\site-packages\torch\nn\modules\module.py", line 1739, in _wrapped_call_impl
    return self._call_impl(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\ProgramData\Anaconda3\Lib\site-packages\torch\nn\modules\module.py", line 1750, in _call_impl
    return forward_call(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "c:\SW\pyro-ppl\pyro\contrib\easyguide\easyguide.py", line 104, in forward
    result = self.guide(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "c:\SW\pyro-ppl\tests\contrib\easyguide\test_easyguide.py", line 79, in guide
    self.group(match="state_[0-9]*").map_estimate()
  File "c:\SW\pyro-ppl\pyro\contrib\easyguide\easyguide.py", line 313, in map_estimate
    site["name"]: self.guide.map_estimate(site["name"])
                  ^^^^^^^^^^
  File "c:\SW\pyro-ppl\pyro\contrib\easyguide\easyguide.py", line 243, in guide
    return self._guide()
           ^^^^^^^^^^^^^
  File "c:\SW\pyro-ppl\pyro\nn\module.py", line 527, in __call__
    result = super().__call__(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\ProgramData\Anaconda3\Lib\site-packages\torch\nn\modules\module.py", line 1739, in _wrapped_call_impl
    return self._call_impl(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\ProgramData\Anaconda3\Lib\site-packages\torch\nn\modules\module.py", line 1750, in _call_impl
    return forward_call(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "c:\SW\pyro-ppl\pyro\contrib\easyguide\easyguide.py", line 104, in forward
    result = self.guide(*args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: PickleGuide.guide() missing 3 required positional arguments: 'batch', 'subsample', and 'full_size'

Any idea what is going on here? I'm not sure it is related to Python 3.12.

[fritzo]

@BenZickel I'm not sure what's wrong. Given that easyguide is in pyro.contrib, and that it has few users, and that those users rarely pickle their easyguides, I think it's ok to mark this test xfail and point to a new issue to track the bug.

@pytest.mark.xfail(reason="https://github.com/pyro-ppl/pyro/issues/XXXXXX")

[fritzo]

Thanks, @BenZickel!