AttributeError on EL8 systems with Python 3.6.8

[davidsj2]

OS: Red Hat Enterprise Linux release 8.7 (Ootpa Python: Python 3.6.8 (default, Oct 20 2022, 09:31:56) [GCC 8.5.0 20210514 (Red Hat 8.5.0-15)] on linux cx_Freeze version: 6.13.2 (plus older versions e.g. 6.11.1)

Note: this same issue was encountered by someone else here: https://stackoverflow.com/questions/73505683/attributeerror-module-hashlib-has-no-attribute-get-fips-mode

When building an executable using cx_Freeze, we see the following when invoking it:

Traceback (most recent call last):
  File "/disk01/user/dmcompiler/venv/lib/python3.6/site-packages/cx_Freeze/initscripts/__startup__.py", line 138, in run
    module_init.run(name + "__main__")
  File "/disk01/user/dmcompiler/venv/lib/python3.6/site-packages/cx_Freeze/initscripts/console.py", line 16, in run
    exec(code, module_main.__dict__)  # pylint: disable=exec-used
  File "dmcompiler/dmc.py", line 14, in <module>
  File "/disk01/user/dmcompiler/dmcompiler/structure.py", line 16, in <module>
    from pygccxml import declarations
  File "/disk01/user/dmcompiler/venv/lib/python3.6/site-packages/pygccxml/__init__.py", line 31, in <module>
    from . import declarations
  File "/disk01/user/dmcompiler/venv/lib/python3.6/site-packages/pygccxml/declarations/__init__.py", line 17, in <module>
    from .scopedef import scopedef_t
  File "/disk01/user/dmcompiler/venv/lib/python3.6/site-packages/pygccxml/declarations/scopedef.py", line 21, in <module>
    from .. import utils
  File "/disk01/user/dmcompiler/venv/lib/python3.6/site-packages/pygccxml/utils/__init__.py", line 11, in <module>
    from .utils import is_str
  File "/disk01/user/dmcompiler/venv/lib/python3.6/site-packages/pygccxml/utils/utils.py", line 12, in <module>
    import tempfile
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/disk01/user/dmcompiler/venv/lib64/python3.6/tempfile.py", line 45, in <module>
    from random import Random as _Random
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/disk01/user/dmcompiler/venv/lib64/python3.6/random.py", line 46, in <module>
    from hashlib import sha512 as _sha512
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "/disk01/user/dmcompiler/venv/lib64/python3.6/hashlib.py", line 219, in <module>
    globals()[__func_name] = __get_hash(__func_name)
  File "/disk01/user/dmcompiler/venv/lib64/python3.6/hashlib.py", line 124, in __get_openssl_constructor
    if not _hashlib.get_fips_mode():

Any ideas what could cause this?

[marcelotduarte]

Try this: pip uninstall -y cx_Freeze pip install --no-binary=cx_Freeze cx_Freeze

[marcelotduarte]

In fact, I've looked at the python source, and it could be that one (or more) modules aren't loading. Try using on the command line --includes=_sha256 python setup.py build_exe --includes=_sha256 or w/ cxfreeze ----includes=_sha256 ...

[davidsj2]

Thanks; installing from source worked. Do you want me to try again with a binary wheel with flag?

[marcelotduarte]

Yes, please test.

[davidsj2]

I'm running this from setup, so I I changed build_exe of options to look like:

build_exe_options = {
    'packages': ['inflection'],
    'include_files': ['dmcompiler/templates/'],
    'includes': ['_sha256']}

set in setup via: options = {'build_exe': build_exe_options},

I get the same stack trace with those updates when reverting back to binary wheel.

[marcelotduarte]

The binary wheels are made using CentOS7 (manylinux2014) and apparently have some issues with OpenSSL and FIPSMODE. As python 3.6 is EOL and from source worked, I'll close the issue.

[GeekOffTheStreet]

FWIW, this also happens on el8 with Python 3.8:

Traceback (most recent call last):
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib/python3.8/site-packages/cx_Freeze/initscripts/__startup__.py", line 124, in run
    module_init.run(name + "__main__")
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib/python3.8/site-packages/cx_Freeze/initscripts/console.py", line 16, in run
    exec(code, module_main.__dict__)
  File "dmcompiler/dmc.py", line 14, in <module>
    import dmcompiler.structure as structure
  File "/ssd/davidsj2/repos/dmcompiler/dmcompiler/structure.py", line 19, in <module>
    from pygccxml import declarations
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib/python3.8/site-packages/pygccxml/__init__.py", line 33, in <module>
    from . import parser
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib/python3.8/site-packages/pygccxml/parser/__init__.py", line 12, in <module>
    from .project_reader import COMPILATION_MODE
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib/python3.8/site-packages/pygccxml/parser/project_reader.py", line 11, in <module>
    from . import source_reader
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib/python3.8/site-packages/pygccxml/parser/source_reader.py", line 15, in <module>
    from . import declarations_cache
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib/python3.8/site-packages/pygccxml/parser/declarations_cache.py", line 8, in <module>
    import hashlib
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 655, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 618, in _load_backward_compatible
  File "<frozen zipimport>", line 259, in load_module
  File "/ssd/davidsj2/repos/dmcompiler/venv38/lib64/python3.8/hashlib.py", line 218, in <module>
    if not _hashlib.get_fips_mode():
AttributeError: module '_hashlib' has no attribute 'get_fips_mode'

Seems like it's Red Hat patched in el8+ systems: https://bugzilla.redhat.com/show_bug.cgi?format=multiple&id=1745685 https://raw.githubusercontent.com/openela-main/python3/352f011d1bb441e4f8fcf20da041780254486597/SOURCES/00329-fips.patch