js_bridge_call: use logging instead of print()

[MacMoneysac666]

Specification

• pywebview version: 5.1
• operating system: Windows
• web renderer: Chromium

Description

The function js_bridge_call uses print() if an exception occur:

def js_bridge_call(window: Window, func_name: str, param: Any, value_id: str) -> None:
    def _call():
        try:
            result = func(*func_params)
            result = json.dumps(result).replace('\\', '\\\\').replace("'", "\\'")
            code = f'window.pywebview._returnValues["{func_name}"]["{value_id}"] = {{value: \'{result}\'}}'
        except Exception as e:
            print(traceback.format_exc())
            error = {'message': str(e), 'name': type(e).__name__, 'stack': traceback.format_exc()}
            result = json.dumps(error).replace('\\', '\\\\').replace("'", "\\'")
            code = f'window.pywebview._returnValues["{func_name}"]["{value_id}"] = {{isError: true, value: \'{result}\'}}'

    ...

Imho, it would be a good idea to use logging instead. User applications in particular can make heavy use of the logging framework.

If the change is not easily possible due to backwards compatibility, it would still be great if it could be configured - e.g. via an environment variable.

I hope I haven't overlooked anything and would like to thank you for this project!

Practicalities

I am willing to work on this issue myself.

[r0x0r]

Good suggestion. I pushed this change to master