KeyError: 'OPENSSL_CONF

[yjz1234]

When I am installing in my pc with win 10 ,it's error :
` Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 154, in save_modules
yield saved
File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
yield
File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 250, in run_setup
_execfile(setup_script, ns)
File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 45, in execfile
exec(code, globals, locals)
File "C:\Users\12711\AppData\Local\Temp\easy_install-lzkw1izd\petlib-0.0.45\setup.py", line 40, in
],
File "d:\python3\lib\site-packages\setuptools_init.py", line 143, in setup
return distutils.core.setup(**attrs)
File "d:\python3\lib\distutils\core.py", line 108, in setup
_setup_distribution = dist = klass(attrs)
File "d:\python3\lib\site-packages\setuptools\dist.py", line 442, in init
k: v for k, v in attrs.items()
File "d:\python3\lib\distutils\dist.py", line 281, in init
self.finalize_options()
File "d:\python3\lib\site-packages\setuptools\dist.py", line 601, in finalize_options
ep.load()(self, ep.name, value)
File "d:\python3\lib\site-packages\cffi\setuptools_ext.py", line 217, in cffi_modules
add_cffi_module(dist, cffi_module)
File "d:\python3\lib\site-packages\cffi\setuptools_ext.py", line 49, in add_cffi_module
execfile(build_file_name, mod_vars)
File "d:\python3\lib\site-packages\cffi\setuptools_ext.py", line 25, in execfile
exec(code, glob, glob)
File "petlib/compile.py", line 34, in
File "d:\python3\lib\os.py", line 669, in getitem
raise KeyError(key) from None
KeyError: 'OPENSSL_CONF'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Users\12711\AppData\Local\Temp\pip-install-575rjrxd\bplib\setup.py", line 41, in <module>
    zip_safe=False,
  File "d:\python3\lib\site-packages\setuptools\__init__.py", line 142, in setup
    _install_setup_requires(attrs)
  File "d:\python3\lib\site-packages\setuptools\__init__.py", line 137, in _install_setup_requires
    dist.fetch_build_eggs(dist.setup_requires)
  File "d:\python3\lib\site-packages\setuptools\dist.py", line 586, in fetch_build_eggs
    replace_conflicting=True,
  File "d:\python3\lib\site-packages\pkg_resources\__init__.py", line 780, in resolve
    replace_conflicting=replace_conflicting
  File "d:\python3\lib\site-packages\pkg_resources\__init__.py", line 1063, in best_match
    return self.obtain(req, installer)
  File "d:\python3\lib\site-packages\pkg_resources\__init__.py", line 1075, in obtain
    return installer(requirement)
  File "d:\python3\lib\site-packages\setuptools\dist.py", line 653, in fetch_build_egg
    return cmd.easy_install(req)
  File "d:\python3\lib\site-packages\setuptools\command\easy_install.py", line 679, in easy_install
    return self.install_item(spec, dist.location, tmpdir, deps)
  File "d:\python3\lib\site-packages\setuptools\command\easy_install.py", line 705, in install_item
    dists = self.install_eggs(spec, download, tmpdir)
  File "d:\python3\lib\site-packages\setuptools\command\easy_install.py", line 890, in install_eggs
    return self.build_and_install(setup_script, setup_base)
  File "d:\python3\lib\site-packages\setuptools\command\easy_install.py", line 1158, in build_and_install
    self.run_setup(setup_script, setup_base, args)
  File "d:\python3\lib\site-packages\setuptools\command\easy_install.py", line 1144, in run_setup
    run_setup(setup_script, args)
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 253, in run_setup
    raise
  File "d:\python3\lib\contextlib.py", line 99, in __exit__
    self.gen.throw(type, value, traceback)
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
    yield
  File "d:\python3\lib\contextlib.py", line 99, in __exit__
    self.gen.throw(type, value, traceback)
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 166, in save_modules
    saved_exc.resume()
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 141, in resume
    six.reraise(type, exc, self._tb)
  File "d:\python3\lib\site-packages\setuptools\_vendor\six.py", line 685, in reraise
    raise value.with_traceback(tb)
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 154, in save_modules
    yield saved
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 195, in setup_context
    yield
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 250, in run_setup
    _execfile(setup_script, ns)
  File "d:\python3\lib\site-packages\setuptools\sandbox.py", line 45, in _execfile
    exec(code, globals, locals)
  File "C:\Users\12711\AppData\Local\Temp\easy_install-lzkw1izd\petlib-0.0.45\setup.py", line 40, in <module>
    ],
  File "d:\python3\lib\site-packages\setuptools\__init__.py", line 143, in setup
    return distutils.core.setup(**attrs)
  File "d:\python3\lib\distutils\core.py", line 108, in setup
    _setup_distribution = dist = klass(attrs)
  File "d:\python3\lib\site-packages\setuptools\dist.py", line 442, in __init__
    k: v for k, v in attrs.items()
  File "d:\python3\lib\distutils\dist.py", line 281, in __init__
    self.finalize_options()
  File "d:\python3\lib\site-packages\setuptools\dist.py", line 601, in finalize_options
    ep.load()(self, ep.name, value)
  File "d:\python3\lib\site-packages\cffi\setuptools_ext.py", line 217, in cffi_modules
    add_cffi_module(dist, cffi_module)
  File "d:\python3\lib\site-packages\cffi\setuptools_ext.py", line 49, in add_cffi_module
    execfile(build_file_name, mod_vars)
  File "d:\python3\lib\site-packages\cffi\setuptools_ext.py", line 25, in execfile
    exec(code, glob, glob)
  File "petlib/compile.py", line 34, in <module>
  File "d:\python3\lib\os.py", line 669, in __getitem__
    raise KeyError(key) from None
KeyError: 'OPENSSL_CONF'

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in C:\Users\12711\AppData\Local\Temp\pip-install-575rjrxd\bplib`

[rareguy]

Same issue here! First time installing this it stopped on petlib. Second try and so on, it has the same error as yours. Then I thought maybe petlib is the culprit. And I tried to install petlib alone, and I got OPENSSL_CONF error too! Maybe this might lead to something?

[yjz1234]

Yes,that's because openssl is incompatible with petlib. There is issue :gdanezis/petlib#23.

[rareguy]

It is still trying to use petlib, whether it's from PyPI or directly cloning this repository. Are there still files that use it?
I got this error:

Traceback (most recent call last):
          File "<string>", line 1, in <module>
          File "C:\Users\Rifqi\AppData\Local\Temp\pip-wheel-oq054npq\petlib\setup.py", line 40, in <module>
            zip_safe=False,
          File "e:\computer language\python 3.7.2\lib\site-packages\setuptools\__init__.py", line 145, in setup
            return distutils.core.setup(**attrs)
          File "e:\computer language\python 3.7.2\lib\distutils\core.py", line 108, in setup
            _setup_distribution = dist = klass(attrs)
          File "e:\computer language\python 3.7.2\lib\site-packages\setuptools\dist.py", line 448, in __init__
            k: v for k, v in attrs.items()
          File "e:\computer language\python 3.7.2\lib\distutils\dist.py", line 292, in __init__
            self.finalize_options()
          File "e:\computer language\python 3.7.2\lib\site-packages\setuptools\dist.py", line 740, in finalize_options
            ep.load()(self)
          File "e:\computer language\python 3.7.2\lib\site-packages\setuptools\dist.py", line 747, in _finalize_setup_keywords
            ep.load()(self, ep.name, value)
          File "e:\computer language\python 3.7.2\lib\site-packages\cffi\setuptools_ext.py", line 217, in cffi_modules
            add_cffi_module(dist, cffi_module)
          File "e:\computer language\python 3.7.2\lib\site-packages\cffi\setuptools_ext.py", line 49, in add_cffi_module
            execfile(build_file_name, mod_vars)
          File "e:\computer language\python 3.7.2\lib\site-packages\cffi\setuptools_ext.py", line 25, in execfile
            exec(code, glob, glob)
          File "petlib/compile.py", line 34, in <module>
            openssl_conf = os.environ["OPENSSL_CONF"]
          File "e:\computer language\python 3.7.2\lib\os.py", line 678, in __getitem__
            raise KeyError(key) from None
        KeyError: 'OPENSSL_CONF'

Near the end there is a "petlib" used.

[yjz1234]

That's a bug on windows's openssl, you can look it in gdanezis/petlib#23

[AlexKudzin]

Can someone re-do & update the install guide?
Which OpenSSL binary edition v?
From where as the link is dead?
Where should it be placed, which directory?
After executing the command vcvars32.bat or vcvarsx86_amd64.bat, the path should be correctly configured by?
Is the dependency crypto, pip crypto? pip pycrypto? a library in OpenSSL?

I have tried following the guide,

On Windows, install 32 bit or 64 bit OpenSSL binary edition matching your Python installation. (64 bit)
Ensure libeay32.dll is on the system PATH (https://www.openssl.org/related/binaries.html). THIS LINK NO LONGER WORKS
Configure the path variables of Microsoft VS compilers for 32 bit or 64 bit architectures, by executing the command vcvars32.bat or vcvarsx86_amd64.bat.

I found the binaries here, https://wiki.openssl.org/index.php/Binaries
First I placed them separately in OS
Then ran the vcvarsx86_amd64.bat and set the PATH, when this didn't work
I tried placing them in python, pip, OpenSSL... and setting the path both via vcvarsx86_amd64.bat & environments.

However every time I run pip install petlib it fails with
_DeprecatedInstaller: setuptools.installer and fetch_build_eggs are deprecated.
Requirements should be satisfied by a PEP 517 installer.
If you are using pip, you can try pip install --use-pep517.
OSError: ctypes.util.find_library() did not manage to locate a library called 'crypto'

However, pip install --use-pep517 petlib, also fails!
Collecting petlib
Using cached petlib-0.0.45.tar.gz (245 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Installing backend dependencies ... done
Preparing metadata (pyproject.toml) ... error
error: subprocess-exited-with-error

× Preparing metadata (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [50 lines of output]
Traceback (most recent call last):
File "C:\Users\k_alex\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip_vendor\pyproject_hooks_in_process_in_process.py", line 353, in
main()
File "C:\Users\k_alex\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip_vendor\pyproject_hooks_in_process_in_process.py", line 335, in main
json_out['return_val'] = hook(**hook_input['kwargs'])
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\k_alex\AppData\Local\Programs\Python\Python311\Lib\site-packages\pip_vendor\pyproject_hooks_in_process_in_process.py", line 149, in prepare_metadata_for_build_wheel
return hook(metadata_directory, config_settings)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools\build_meta.py", line 396, in prepare_metadata_for_build_wheel
self.run_setup()
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools\build_meta.py", line 507, in run_setup
super(BuildMetaLegacyBackend, self).run_setup(setup_script=setup_script)
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools\build_meta.py", line 341, in run_setup
exec(code, locals())
File "", line 7, in
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools_init.py", line 107, in setup
return distutils.core.setup(**attrs)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools_distutils\core.py", line 147, in setup
_setup_distribution = dist = klass(attrs)
^^^^^^^^^^^^
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools\dist.py", line 485, in init
_Distribution.init(
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools_distutils\dist.py", line 283, in init
self.finalize_options()
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools\dist.py", line 926, in finalize_options
ep(self)
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\overlay\Lib\site-packages\setuptools\dist.py", line 946, in _finalize_setup_keywords
ep.load()(self, ep.name, value)
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\normal\Lib\site-packages\cffi\setuptools_ext.py", line 219, in cffi_modules
add_cffi_module(dist, cffi_module)
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\normal\Lib\site-packages\cffi\setuptools_ext.py", line 49, in add_cffi_module
execfile(build_file_name, mod_vars)
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\normal\Lib\site-packages\cffi\setuptools_ext.py", line 25, in execfile
exec(code, glob, glob)
File "petlib/compile.py", line 76, in
openssl_version_code = get_openssl_version(warn=True) # pylint: disable=undefined-variable
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "", line 22, in get_openssl_version
File "", line 14, in get_abi_lib
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\normal\Lib\site-packages\cffi\api.py", line 150, in dlopen
lib, function_cache = _make_ffi_library(self, name, flags)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\normal\Lib\site-packages\cffi\api.py", line 832, in _make_ffi_library
backendlib = _load_backend_lib(backend, libname, flags)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\k_alex\AppData\Local\Temp\pip-build-env-w7t5r3me\normal\Lib\site-packages\cffi\api.py", line 827, in _load_backend_lib
raise OSError(msg)
OSError: ctypes.util.find_library() did not manage to locate a library called 'crypto'
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.