class_docstr: A hook to replace sys.excepthook that shows tracebacks in HTML.
code: def __call__(self, etype, evalue, etb):
      self.handle((etype, evalue, etb))
  
imports: import inspect
  import keyword
  import linecache
  import os
  import pydoc
  import sys
  import tempfile
  import time
  import tokenize
  import traceback
  import warnings
  from html import escape
label_desc: Use image node_id 2 for calling the Hook obj's underlying member method code with example usage: obj.__call__(etype, evalue, etb) without return types