python3.8 -X faulthandler ce_test_2.py 
start
end
--Return--
> /home/fractal/workspace/test_py_crash/ce_test_2.py(19)<module>()->None
-> breakpoint()
(Pdb) exit()
Traceback (most recent call last):
  File "ce_test_2.py", line 19, in <module>
    breakpoint()
  File "/usr/lib/python3.8/bdb.py", line 92, in trace_dispatch
    return self.dispatch_return(frame, arg)
  File "/usr/lib/python3.8/bdb.py", line 154, in dispatch_return
    if self.quitting: raise BdbQuit
bdb.BdbQuit
Fatal Python error: Segmentation fault

Current thread 0x00007f976975f740 (most recent call first):
  File "/usr/lib/python3.8/shelve.py", line 124 in __setitem__
  File "/usr/lib/python3.8/shelve.py", line 168 in sync
  File "/usr/lib/python3.8/shelve.py", line 144 in close
  File "/usr/lib/python3.8/shelve.py", line 162 in __del__
Neoprávněný přístup do paměti (SIGSEGV)
$ 





$ python3.8 -v -X faulthandler ce_test_2.py
import _frozen_importlib # frozen
import _imp # builtin
import '_thread' # <class '_frozen_importlib.BuiltinImporter'>
import '_warnings' # <class '_frozen_importlib.BuiltinImporter'>
import '_weakref' # <class '_frozen_importlib.BuiltinImporter'>
import '_frozen_importlib_external' # <class '_frozen_importlib.FrozenImporter'>
import '_io' # <class '_frozen_importlib.BuiltinImporter'>
import 'marshal' # <class '_frozen_importlib.BuiltinImporter'>
import 'posix' # <class '_frozen_importlib.BuiltinImporter'>
import _thread # previously loaded ('_thread')
import '_thread' # <class '_frozen_importlib.BuiltinImporter'>
import _weakref # previously loaded ('_weakref')
import '_weakref' # <class '_frozen_importlib.BuiltinImporter'>
# installing zipimport hook
import 'time' # <class '_frozen_importlib.BuiltinImporter'>
import 'zipimport' # <class '_frozen_importlib.FrozenImporter'>
# installed zipimport hook
import 'faulthandler' # <class '_frozen_importlib.BuiltinImporter'>
# /usr/lib/python3.8/encodings/__pycache__/__init__.cpython-38.pyc matches /usr/lib/python3.8/encodings/__init__.py
# code object from '/usr/lib/python3.8/encodings/__pycache__/__init__.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/codecs.cpython-38.pyc matches /usr/lib/python3.8/codecs.py
# code object from '/usr/lib/python3.8/__pycache__/codecs.cpython-38.pyc'
import '_codecs' # <class '_frozen_importlib.BuiltinImporter'>
import 'codecs' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5477416a0>
# /usr/lib/python3.8/encodings/__pycache__/aliases.cpython-38.pyc matches /usr/lib/python3.8/encodings/aliases.py
# code object from '/usr/lib/python3.8/encodings/__pycache__/aliases.cpython-38.pyc'
import 'encodings.aliases' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476dcc70>
import 'encodings' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd547741490>
# /usr/lib/python3.8/encodings/__pycache__/utf_8.cpython-38.pyc matches /usr/lib/python3.8/encodings/utf_8.py
# code object from '/usr/lib/python3.8/encodings/__pycache__/utf_8.cpython-38.pyc'
import 'encodings.utf_8' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5477418e0>
import '_signal' # <class '_frozen_importlib.BuiltinImporter'>
# /usr/lib/python3.8/encodings/__pycache__/latin_1.cpython-38.pyc matches /usr/lib/python3.8/encodings/latin_1.py
# code object from '/usr/lib/python3.8/encodings/__pycache__/latin_1.cpython-38.pyc'
import 'encodings.latin_1' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476dcd60>
# /usr/lib/python3.8/__pycache__/io.cpython-38.pyc matches /usr/lib/python3.8/io.py
# code object from '/usr/lib/python3.8/__pycache__/io.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/abc.cpython-38.pyc matches /usr/lib/python3.8/abc.py
# code object from '/usr/lib/python3.8/__pycache__/abc.cpython-38.pyc'
import '_abc' # <class '_frozen_importlib.BuiltinImporter'>
import 'abc' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476f5250>
import 'io' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476dcf40>
# /usr/lib/python3.8/__pycache__/site.cpython-38.pyc matches /usr/lib/python3.8/site.py
# code object from '/usr/lib/python3.8/__pycache__/site.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/os.cpython-38.pyc matches /usr/lib/python3.8/os.py
# code object from '/usr/lib/python3.8/__pycache__/os.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/stat.cpython-38.pyc matches /usr/lib/python3.8/stat.py
# code object from '/usr/lib/python3.8/__pycache__/stat.cpython-38.pyc'
import '_stat' # <class '_frozen_importlib.BuiltinImporter'>
import 'stat' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd547691bb0>
# /usr/lib/python3.8/__pycache__/posixpath.cpython-38.pyc matches /usr/lib/python3.8/posixpath.py
# code object from '/usr/lib/python3.8/__pycache__/posixpath.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/genericpath.cpython-38.pyc matches /usr/lib/python3.8/genericpath.py
# code object from '/usr/lib/python3.8/__pycache__/genericpath.cpython-38.pyc'
import 'genericpath' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd54769c6a0>
import 'posixpath' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd547691c40>
# /usr/lib/python3.8/__pycache__/_collections_abc.cpython-38.pyc matches /usr/lib/python3.8/_collections_abc.py
# code object from '/usr/lib/python3.8/__pycache__/_collections_abc.cpython-38.pyc'
import '_collections_abc' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd54769cac0>
import 'os' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5477082e0>
# /usr/lib/python3.8/__pycache__/_sitebuiltins.cpython-38.pyc matches /usr/lib/python3.8/_sitebuiltins.py
# code object from '/usr/lib/python3.8/__pycache__/_sitebuiltins.cpython-38.pyc'
import '_sitebuiltins' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd547708b50>
# /usr/lib/python3.8/__pycache__/_bootlocale.cpython-38.pyc matches /usr/lib/python3.8/_bootlocale.py
# code object from '/usr/lib/python3.8/__pycache__/_bootlocale.cpython-38.pyc'
import '_locale' # <class '_frozen_importlib.BuiltinImporter'>
import '_bootlocale' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476aa5b0>
# /usr/lib/python3.8/__pycache__/types.cpython-38.pyc matches /usr/lib/python3.8/types.py
# code object from '/usr/lib/python3.8/__pycache__/types.cpython-38.pyc'
import 'types' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476bfc70>
# /usr/lib/python3.8/importlib/__pycache__/__init__.cpython-38.pyc matches /usr/lib/python3.8/importlib/__init__.py
# code object from '/usr/lib/python3.8/importlib/__pycache__/__init__.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/warnings.cpython-38.pyc matches /usr/lib/python3.8/warnings.py
# code object from '/usr/lib/python3.8/__pycache__/warnings.cpython-38.pyc'
import 'warnings' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd54763d850>
import 'importlib' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd54763d4c0>
# /usr/lib/python3.8/importlib/__pycache__/util.cpython-38.pyc matches /usr/lib/python3.8/importlib/util.py
# code object from '/usr/lib/python3.8/importlib/__pycache__/util.cpython-38.pyc'
# /usr/lib/python3.8/importlib/__pycache__/abc.cpython-38.pyc matches /usr/lib/python3.8/importlib/abc.py
# code object from '/usr/lib/python3.8/importlib/__pycache__/abc.cpython-38.pyc'
# /usr/lib/python3.8/importlib/__pycache__/machinery.cpython-38.pyc matches /usr/lib/python3.8/importlib/machinery.py
# code object from '/usr/lib/python3.8/importlib/__pycache__/machinery.cpython-38.pyc'
import 'importlib.machinery' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476580d0>
import 'importlib.abc' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476513d0>
# /usr/lib/python3.8/__pycache__/contextlib.cpython-38.pyc matches /usr/lib/python3.8/contextlib.py
# code object from '/usr/lib/python3.8/__pycache__/contextlib.cpython-38.pyc'
# /usr/lib/python3.8/collections/__pycache__/__init__.cpython-38.pyc matches /usr/lib/python3.8/collections/__init__.py
# code object from '/usr/lib/python3.8/collections/__pycache__/__init__.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/operator.cpython-38.pyc matches /usr/lib/python3.8/operator.py
# code object from '/usr/lib/python3.8/__pycache__/operator.cpython-38.pyc'
import '_operator' # <class '_frozen_importlib.BuiltinImporter'>
import 'operator' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f965e0>
# /usr/lib/python3.8/__pycache__/keyword.cpython-38.pyc matches /usr/lib/python3.8/keyword.py
# code object from '/usr/lib/python3.8/__pycache__/keyword.cpython-38.pyc'
import 'keyword' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f966d0>
# /usr/lib/python3.8/__pycache__/heapq.cpython-38.pyc matches /usr/lib/python3.8/heapq.py
# code object from '/usr/lib/python3.8/__pycache__/heapq.cpython-38.pyc'
import '_heapq' # <class '_frozen_importlib.BuiltinImporter'>
import 'heapq' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f96850>
import 'itertools' # <class '_frozen_importlib.BuiltinImporter'>
# /usr/lib/python3.8/__pycache__/reprlib.cpython-38.pyc matches /usr/lib/python3.8/reprlib.py
# code object from '/usr/lib/python3.8/__pycache__/reprlib.cpython-38.pyc'
import 'reprlib' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f96be0>
import '_collections' # <class '_frozen_importlib.BuiltinImporter'>
import 'collections' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476647c0>
# /usr/lib/python3.8/__pycache__/functools.cpython-38.pyc matches /usr/lib/python3.8/functools.py
# code object from '/usr/lib/python3.8/__pycache__/functools.cpython-38.pyc'
import '_functools' # <class '_frozen_importlib.BuiltinImporter'>
import 'functools' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd547664970>
import 'contextlib' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd547651a90>
import 'importlib.util' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd54763d6a0>
# /usr/lib/python3.8/__pycache__/sitecustomize.cpython-38.pyc matches /usr/lib/python3.8/sitecustomize.py
# code object from '/usr/lib/python3.8/__pycache__/sitecustomize.cpython-38.pyc'
import 'sitecustomize' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd547664bb0>
import 'site' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd5476f5bb0>
Python 3.8.1 (default, Dec 22 2019, 08:15:39) 
[GCC 7.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
# /usr/lib/python3.8/__pycache__/shelve.cpython-38.pyc matches /usr/lib/python3.8/shelve.py
# code object from '/usr/lib/python3.8/__pycache__/shelve.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/pickle.cpython-38.pyc matches /usr/lib/python3.8/pickle.py
# code object from '/usr/lib/python3.8/__pycache__/pickle.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/copyreg.cpython-38.pyc matches /usr/lib/python3.8/copyreg.py
# code object from '/usr/lib/python3.8/__pycache__/copyreg.cpython-38.pyc'
import 'copyreg' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f73100>
# /usr/lib/python3.8/__pycache__/struct.cpython-38.pyc matches /usr/lib/python3.8/struct.py
# code object from '/usr/lib/python3.8/__pycache__/struct.cpython-38.pyc'
import '_struct' # <class '_frozen_importlib.BuiltinImporter'>
import 'struct' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f73490>
# /usr/lib/python3.8/__pycache__/re.cpython-38.pyc matches /usr/lib/python3.8/re.py
# code object from '/usr/lib/python3.8/__pycache__/re.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/enum.cpython-38.pyc matches /usr/lib/python3.8/enum.py
# code object from '/usr/lib/python3.8/__pycache__/enum.cpython-38.pyc'
import 'enum' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f73fd0>
# /usr/lib/python3.8/__pycache__/sre_compile.cpython-38.pyc matches /usr/lib/python3.8/sre_compile.py
# code object from '/usr/lib/python3.8/__pycache__/sre_compile.cpython-38.pyc'
import '_sre' # <class '_frozen_importlib.BuiltinImporter'>
# /usr/lib/python3.8/__pycache__/sre_parse.cpython-38.pyc matches /usr/lib/python3.8/sre_parse.py
# code object from '/usr/lib/python3.8/__pycache__/sre_parse.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/sre_constants.cpython-38.pyc matches /usr/lib/python3.8/sre_constants.py
# code object from '/usr/lib/python3.8/__pycache__/sre_constants.cpython-38.pyc'
import 'sre_constants' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f18cd0>
import 'sre_parse' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f182b0>
import 'sre_compile' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f08970>
import 're' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f73670>
# /usr/lib/python3.8/__pycache__/_compat_pickle.cpython-38.pyc matches /usr/lib/python3.8/_compat_pickle.py
# code object from '/usr/lib/python3.8/__pycache__/_compat_pickle.cpython-38.pyc'
import '_compat_pickle' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f73eb0>
import '_pickle' # <class '_frozen_importlib.BuiltinImporter'>
import 'pickle' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f48ca0>
# /usr/lib/python3.8/collections/__pycache__/abc.cpython-38.pyc matches /usr/lib/python3.8/collections/abc.py
# code object from '/usr/lib/python3.8/collections/__pycache__/abc.cpython-38.pyc'
import 'collections.abc' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f48cd0>
import 'shelve' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545fa2280>
# /home/fractal/workspace/test_py_crash/__pycache__/material.cpython-38.pyc matches /home/fractal/workspace/test_py_crash/material.py
# code object from '/home/fractal/workspace/test_py_crash/__pycache__/material.cpython-38.pyc'
# /usr/lib/python3.8/logging/__pycache__/__init__.cpython-38.pyc matches /usr/lib/python3.8/logging/__init__.py
# code object from '/usr/lib/python3.8/logging/__pycache__/__init__.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/traceback.cpython-38.pyc matches /usr/lib/python3.8/traceback.py
# code object from '/usr/lib/python3.8/__pycache__/traceback.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/linecache.cpython-38.pyc matches /usr/lib/python3.8/linecache.py
# code object from '/usr/lib/python3.8/__pycache__/linecache.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/tokenize.cpython-38.pyc matches /usr/lib/python3.8/tokenize.py
# code object from '/usr/lib/python3.8/__pycache__/tokenize.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/token.cpython-38.pyc matches /usr/lib/python3.8/token.py
# code object from '/usr/lib/python3.8/__pycache__/token.cpython-38.pyc'
import 'token' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545ef26d0>
import 'tokenize' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545ee8d00>
import 'linecache' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545ee8970>
import 'traceback' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545eded30>
# /usr/lib/python3.8/__pycache__/weakref.cpython-38.pyc matches /usr/lib/python3.8/weakref.py
# code object from '/usr/lib/python3.8/__pycache__/weakref.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/_weakrefset.cpython-38.pyc matches /usr/lib/python3.8/_weakrefset.py
# code object from '/usr/lib/python3.8/__pycache__/_weakrefset.cpython-38.pyc'
import '_weakrefset' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545e89b50>
import 'weakref' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545ee8dc0>
# /usr/lib/python3.8/__pycache__/string.cpython-38.pyc matches /usr/lib/python3.8/string.py
# code object from '/usr/lib/python3.8/__pycache__/string.cpython-38.pyc'
import '_string' # <class '_frozen_importlib.BuiltinImporter'>
import 'string' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545e928b0>
# /usr/lib/python3.8/__pycache__/threading.cpython-38.pyc matches /usr/lib/python3.8/threading.py
# code object from '/usr/lib/python3.8/__pycache__/threading.cpython-38.pyc'
import 'threading' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545e92f70>
import 'atexit' # <class '_frozen_importlib.BuiltinImporter'>
import 'logging' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f30640>
import 'material' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f48b20>
# /usr/lib/python3.8/dbm/__pycache__/__init__.cpython-38.pyc matches /usr/lib/python3.8/dbm/__init__.py
# code object from '/usr/lib/python3.8/dbm/__pycache__/__init__.cpython-38.pyc'
# /usr/lib/python3.8/dbm/__pycache__/ndbm.cpython-38.pyc matches /usr/lib/python3.8/dbm/ndbm.py
# code object from '/usr/lib/python3.8/dbm/__pycache__/ndbm.cpython-38.pyc'
# extension module '_dbm' loaded from '/usr/lib/python3.8/lib-dynload/_dbm.cpython-38-x86_64-linux-gnu.so'
# extension module '_dbm' executed from '/usr/lib/python3.8/lib-dynload/_dbm.cpython-38-x86_64-linux-gnu.so'
import '_dbm' # <_frozen_importlib_external.ExtensionFileLoader object at 0x7fd545e39790>
import 'dbm.ndbm' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545e394f0>
import 'dbm' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545f30fd0>
# /usr/lib/python3.8/dbm/__pycache__/gnu.cpython-38.pyc matches /usr/lib/python3.8/dbm/gnu.py
# code object from '/usr/lib/python3.8/dbm/__pycache__/gnu.cpython-38.pyc'
# extension module '_gdbm' loaded from '/usr/lib/python3.8/lib-dynload/_gdbm.cpython-38-x86_64-linux-gnu.so'
# extension module '_gdbm' executed from '/usr/lib/python3.8/lib-dynload/_gdbm.cpython-38-x86_64-linux-gnu.so'
import '_gdbm' # <_frozen_importlib_external.ExtensionFileLoader object at 0x7fd545e39880>
import 'dbm.gnu' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545eca8b0>
# /usr/lib/python3.8/dbm/__pycache__/dumb.cpython-38.pyc matches /usr/lib/python3.8/dbm/dumb.py
# code object from '/usr/lib/python3.8/dbm/__pycache__/dumb.cpython-38.pyc'
# /usr/lib/python3.8/__pycache__/ast.cpython-38.pyc matches /usr/lib/python3.8/ast.py
# code object from '/usr/lib/python3.8/__pycache__/ast.cpython-38.pyc'
import '_ast' # <class '_frozen_importlib.BuiltinImporter'>
import 'ast' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545e39c10>
import 'dbm.dumb' # <_frozen_importlib_external.SourceFileLoader object at 0x7fd545e397f0>
start
end
# clear sys.audit hooks
# clear builtins._
# clear sys.path
# clear sys.argv
# clear sys.ps1
# clear sys.ps2
# clear sys.last_type
# clear sys.last_value
# clear sys.last_traceback
# clear sys.path_hooks
# clear sys.path_importer_cache
# clear sys.meta_path
# clear sys.__interactivehook__
# restore sys.stdin
# restore sys.stdout
# restore sys.stderr
# cleanup[2] removing sys
# cleanup[2] removing builtins
# cleanup[2] removing _frozen_importlib
# cleanup[2] removing _imp
# cleanup[2] removing _warnings
# cleanup[2] removing _frozen_importlib_external
# cleanup[2] removing _io
# cleanup[2] removing marshal
# cleanup[2] removing posix
# cleanup[2] removing _thread
# cleanup[2] removing _weakref
# cleanup[2] removing time
# cleanup[2] removing zipimport
# destroy zipimport
# cleanup[2] removing faulthandler
# cleanup[2] removing _codecs
# cleanup[2] removing codecs
# cleanup[2] removing encodings.aliases
# cleanup[2] removing encodings
# destroy encodings
# cleanup[2] removing encodings.utf_8
# cleanup[2] removing _signal
# cleanup[2] removing __main__
# destroy __main__
# cleanup[2] removing encodings.latin_1
# cleanup[2] removing _abc
# cleanup[2] removing abc
# cleanup[2] removing io
# cleanup[2] removing _stat
# cleanup[2] removing stat
# cleanup[2] removing genericpath
# cleanup[2] removing posixpath
# cleanup[2] removing os.path
# cleanup[2] removing _collections_abc
# cleanup[2] removing os
# cleanup[2] removing _sitebuiltins
# cleanup[2] removing _locale
# cleanup[2] removing _bootlocale
# destroy _bootlocale
# cleanup[2] removing types
# cleanup[2] removing importlib._bootstrap
# cleanup[2] removing importlib._bootstrap_external
# cleanup[2] removing warnings
# cleanup[2] removing importlib
# destroy importlib
# cleanup[2] removing importlib.machinery
# cleanup[2] removing importlib.abc
# cleanup[2] removing _operator
# cleanup[2] removing operator
# destroy operator
# cleanup[2] removing keyword
# destroy keyword
# cleanup[2] removing _heapq
# cleanup[2] removing heapq
# cleanup[2] removing itertools
# cleanup[2] removing reprlib
# destroy reprlib
# cleanup[2] removing _collections
# cleanup[2] removing collections
# cleanup[2] removing _functools
# cleanup[2] removing functools
# cleanup[2] removing contextlib
# destroy contextlib
# cleanup[2] removing importlib.util
# cleanup[2] removing zope
# destroy zope
# cleanup[2] removing sitecustomize
# destroy sitecustomize
# cleanup[2] removing site
# destroy site
# cleanup[2] removing copyreg
# cleanup[2] removing _struct
# cleanup[2] removing struct
# cleanup[2] removing enum
# cleanup[2] removing _sre
# cleanup[2] removing sre_constants
# destroy sre_constants
# cleanup[2] removing sre_parse
# cleanup[2] removing sre_compile
# cleanup[2] removing re
# cleanup[2] removing _compat_pickle
# cleanup[2] removing _pickle
# cleanup[2] removing pickle
# destroy pickle
# cleanup[2] removing collections.abc
# cleanup[2] removing shelve
# cleanup[2] removing token
# destroy token
# cleanup[2] removing tokenize
# cleanup[2] removing linecache
# cleanup[2] removing traceback
# cleanup[2] removing _weakrefset
# destroy _weakrefset
# cleanup[2] removing weakref
# cleanup[2] removing _string
# cleanup[2] removing string
# destroy string
# cleanup[2] removing threading
# cleanup[2] removing atexit
# cleanup[2] removing logging
# cleanup[2] removing material
# cleanup[2] removing _dbm
# cleanup[2] removing dbm.ndbm
# cleanup[2] removing dbm
# destroy dbm
# cleanup[2] removing _gdbm
# cleanup[2] removing dbm.gnu
# cleanup[2] removing _ast
# cleanup[2] removing ast
# cleanup[2] removing dbm.dumb
# destroy _ast
Fatal Python error: Segmentation fault

Current thread 0x00007fd5477cb740 (most recent call first):
  File "/usr/lib/python3.8/shelve.py", line 124 in __setitem__
  File "/usr/lib/python3.8/shelve.py", line 168 in sync
  File "/usr/lib/python3.8/shelve.py", line 144 in close
  File "/usr/lib/python3.8/shelve.py", line 162 in __del__
Neoprávněný přístup do paměti (SIGSEGV)