hm.py

class LH:
  def __init__(self, *args, **kwargs):
    self.handlers = []

  async def actual_method(self, parameter):
    try:
      print(parameter)
      if parameter == "wrong input":
        raise ValueError
    except Exception as error:
      await self.handlers[0](self.actual_method, error, parameter)

  async def handler(self, awaitable, handler):
    self.handlers.append(handler)
    await awaitable
    self.handlers = []


async def main():
  async def handler(function, error, parameter):
    await function(parameter="good input")
    
  lh = LH()
  await lh.handler(lh.actual_method(parameter="wrong input"), handler)


import asyncio
asyncio.run(main())