Getting "Executed file not found" error when .py file present along with .ipynb

Bug description

I am trying to compile a book with quarto, sourced by .ipynb files. I have chapters specified in the _quarto.yml and they are all .ipynb files. When doing quarto render I get the error if any of the .ipynb files also have a .py file with the same name, and no error if I remove the .py file. Is this expected? I usually have as a default for my Jupyter to always save a .py with my .ipynb to make it easier for searching through old work. Thanks!

Steps to reproduce

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Expected behavior

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Actual behavior

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Your environment

• Python 3 installation....Version: 3.11.8 (Conda)
• Mac 14.4.1

Quarto check output

Quarto 1.4.554
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.1.11: OK
      Dart Sass version 1.69.5: OK
      Deno version 1.37.2: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.4.554
      Path: /Applications/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: (not installed)
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: Installation From Path
      Path: /Library/TeX/texbin
      Version: 2023

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.11.8 (Conda)
      Path: /opt/anaconda3/envs/work/bin/python
      Jupyter: 5.5.0
      Kernels: python3

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........(None)

      Unable to locate an installed version of R.
      Install R from https://cloud.r-project.org/