code: def test_no_encoding_in_python_scripts(no_jupytext_version_number):
      """No UTF encoding should not be added to Python scripts"""
      nb = new_notebook(
          cells=[new_markdown_cell("α")],
          metadata={
              "kernelspec": {
                  "display_name": "Python 3",
                  "language": "python",
                  "name": "python3",
              },
          },
      )
  
      # Saving to and reading from py creates an encoding
      py_light = jupytext.writes(nb, "py:light")
      compare(
          py_light,
          """# ---
  # jupyter:
  #   kernelspec:
  #     display_name: Python 3
  #     language: python
  #     name: python3
  # ---
  
  # α
  """,
      )
  
file_path: jupytext/tests/functional/others/test_unicode.py
imports: from nbformat.v4.nbbase import new_markdown_cell, new_notebook
  import jupytext
  from jupytext.compare import compare
label_desc: Use image node_id 4 for calling a global function with example usage: test_no_encoding_in_python_scripts(no_jupytext_version_number) without return types