Add encoding parameter for non-ASCII characters

[kuihao]

Description

Fixed the UnicodeDecodeError issue in p2j when processing Python scripts with Chinese comments. Added an encoding parameter (default=“utf-8”) to handle character encoding. Resolves Issue #16.

Usage

Run code (OS is windows 11):

p2j .\code.py -e "Big5" # Specify the desired encoding (e.g., Big5)

Expected output:

Notebook .\code.ipynb written.

[remykarem]

@kuihao

Firstly, sorry for the late reply!

Secondly, thank you for taking the time to create a PR.

I've left a comment and it's a small change to expose this new feature in the CLI.

Thanks!

[remykarem]

args.encoding should be passed to the encoding parameter that we're exposing in the functions jupyter2python and python2jupyter.

i.e.

if args.reverse:
  jupyter2python(
    ...,
    encoding=args.encoding
  )
else:
  python2jupyter(
    ...,
    encoding=args.encoding
  )

Otherwise, the value of the encoding parsed from the CLI won't enjoy this new feature.