TW'sLE!!!

TW'sLE!!! (stands for The World's Longest Error!!!) or Errology is a joke esolang by User:iddi01 in which every single program instantly raises an error about 470000 lines long, the world's longest error.

Quine

(Too long to put in here)

Implementation

Python (clsmvks2.py) (Please make sure that the filename storing the program is clsmvks2.py or won't work)

def importer():
   try: CM()
   except:
       CM()
   finally: CM()
class CM:
   def __new__(cls):
       try:
           return clsmvks2.CM.__new__(cls)
       except Exception as exc:
           try: raise Exception from exc
           except Exception as err:
               try: raise BaseException from err
               except BaseException as trd:
                   try: raise PendingDeprecationWarning from trd
                   except PendingDeprecationWarning as trderr:
                       help('hwcae')
import clsmvks2
try: importer()
except: importer()
finally: importer()

Place a file named hwcae.py containing the line below in the same folder as the program or the error will be much shorter:

dwcae = type('cannotdir', (object,), {...: 'abc'})

Also, the program was written in Python 3.8.10 and ran on Ubuntu 20.04, in case the environment affects things.