class_docstr: A Context Manager that will save an exception, serialized, and restore it
  later.
class_docstr_tok: ["A","Context","Manager","that","will","save","an","exception",",","serialized",",","and","restore","it","later","."]
code: def __enter__(self):
      return self
  
imports: import os
  import sys
  import tempfile
  import operator
  import functools
  import itertools
  import re
  import contextlib
  import pickle
  import textwrap
  import builtins
  import pkg_resources
  from distutils.errors import DistutilsError
  from pkg_resources import working_set
label_desc: Use image node_id 1 for calling the ExceptionSaver obj's underlying member method code with example usage: obj.__enter__() and returns: self