PyOxidizer configuration for virtual environment

[l-monninger]

I'm a pyo3 user trying to move away from relying on running my application inside a venv. I'd like to use pyembed::MainPythonInterpreter and point it to an installed venv instead. But, I'm having trouble doing so when using ::default(). I keep getting a Fatal Python error: init_interp_main: failed to update the Python config.

Here's a redacted version of my output if I run without setting PYTHONPATH:

Python path configuration:
  PYTHONHOME = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps'
  PYTHONPATH = (not set)
  program name = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps/image_labeler-ff8ff8ff5b2b6a4d'
  isolated = 0
  environment = 1
  user site = 1
  import site = 1
  sys._base_executable = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps/image_labeler-ff8ff8ff5b2b6a4d'
  sys.base_prefix = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps'
  sys.base_exec_prefix = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps'
  sys.platlibdir = 'lib'
  sys.executable = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps/image_labeler-ff8ff8ff5b2b6a4d'
  sys.prefix = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps'
  sys.exec_prefix = '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps'
  sys.path = [
    '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps/lib/python310.zip',
    '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps/lib/python3.10',
    '/Users/liammonninger/Desktop/xx/image-labeler/target/debug/deps/lib/python3.10/lib-dynload',
  ]
Fatal Python error: init_interp_main: failed to update the Python config
Python runtime state: core initialized

Thread 0x000000016f527000 (most recent call first):
  <no Python frame>

And, with PYTHONPATH set to the appropriate venv path:

process didn't exit successfully: `/Users/liammonninger/Desktop/dev/artmuseo/image-labeler/target/debug/deps/image_labeler-ff8ff8ff5b2b6a4d` (signal: 11, SIGSEGV: invalid memory reference)

What do I need to configure to get this working properly?