I am trying to install cryptography, but I am seeing a bunch of problems. For some reasons there seems to be some dependency to my Visual Studio application and it tries to initiate some build process from there?!
pip install cryptography Collecting cryptography Using cached https://files.pythonhosted.org/packages/bf/ac/552fc8729d90393845cc3a2062facf4a89dcbe206fa78771d60ddaae7554/cryptography-3.0.tar.gz Requirement already satisfied: six>=1.4.1 in c:\python38\lib\site-packages (from cryptography) Requirement already satisfied: cffi!=1.11.3,>=1.8 in c:\python38\lib\site-packages (from cryptography) Requirement already satisfied: pycparser in c:\python38\lib\site-packages (from cffi!=1.11.3,>=1.8->cryptography) Installing collected packages: cryptography Running setup.py install for cryptography ... error Complete output from command c:\python38\python.exe -u -c "import setuptools, tokenize;file='C:\Users\daw\AppData\Local\Temp\pip-build-jxm0knmz\cryptography\setup.py';f=getattr(tokenize, 'open', open)(file);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, file, 'exec'))" install --record C:\Users\daw\AppData\Local\Temp\pip-2sjuum9y-record\install-record.txt --single-version-externally-managed --compile: running install running build running build_py creating build creating build\lib.win-amd64-3.8 creating build\lib.win-amd64-3.8\cryptography copying src\cryptography\exceptions.py -> build\lib.win-amd64-3.8\cryptography copying src\cryptography\fernet.py -> build\lib.win-amd64-3.8\cryptography copying src\cryptography\utils.py -> build\lib.win-amd64-3.8\cryptography copying src\cryptography_about_.py -> build\lib.win-amd64-3.8\cryptography copying src\cryptography_init_.py -> build\lib.win-amd64-3.8\cryptography creating build\lib.win-amd64-3.8\cryptography\hazmat copying src\cryptography\hazmat_der.py -> build\lib.win-amd64-3.8\cryptography\hazmat copying src\cryptography\hazmat_oid.py -> build\lib.win-amd64-3.8\cryptography\hazmat copying src\cryptography\hazmat_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat creating build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509\base.py -> build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509\certificate_transparency.py -> build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509\extensions.py -> build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509\general_name.py -> build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509\name.py -> build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509\ocsp.py -> build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509\oid.py -> build\lib.win-amd64-3.8\cryptography\x509 copying src\cryptography\x509_init_.py -> build\lib.win-amd64-3.8\cryptography\x509 creating build\lib.win-amd64-3.8\cryptography\hazmat\backends copying src\cryptography\hazmat\backends\interfaces.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends copying src\cryptography\hazmat\backends_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends creating build\lib.win-amd64-3.8\cryptography\hazmat\bindings copying src\cryptography\hazmat\bindings_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\bindings creating build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives\cmac.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives\constant_time.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives\hashes.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives\hmac.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives\keywrap.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives\padding.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives\poly1305.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives copying src\cryptography\hazmat\primitives_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives creating build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\aead.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\backend.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\ciphers.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\cmac.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\decode_asn1.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\dh.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\dsa.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\ec.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\ed25519.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\ed448.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\encode_asn1.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\hashes.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\hmac.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\ocsp.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\poly1305.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\rsa.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\utils.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\x25519.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\x448.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl\x509.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl copying src\cryptography\hazmat\backends\openssl_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\backends\openssl creating build\lib.win-amd64-3.8\cryptography\hazmat\bindings\openssl copying src\cryptography\hazmat\bindings\openssl\binding.py -> build\lib.win-amd64-3.8\cryptography\hazmat\bindings\openssl copying src\cryptography\hazmat\bindings\openssl_conditional.py -> build\lib.win-amd64-3.8\cryptography\hazmat\bindings\openssl copying src\cryptography\hazmat\bindings\openssl_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\bindings\openssl creating build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\dh.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\dsa.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\ec.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\ed25519.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\ed448.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\padding.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\rsa.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\utils.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\x25519.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric\x448.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric copying src\cryptography\hazmat\primitives\asymmetric_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\asymmetric creating build\lib.win-amd64-3.8\cryptography\hazmat\primitives\ciphers copying src\cryptography\hazmat\primitives\ciphers\aead.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\ciphers copying src\cryptography\hazmat\primitives\ciphers\algorithms.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\ciphers copying src\cryptography\hazmat\primitives\ciphers\base.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\ciphers copying src\cryptography\hazmat\primitives\ciphers\modes.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\ciphers copying src\cryptography\hazmat\primitives\ciphers_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\ciphers creating build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf copying src\cryptography\hazmat\primitives\kdf\concatkdf.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf copying src\cryptography\hazmat\primitives\kdf\hkdf.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf copying src\cryptography\hazmat\primitives\kdf\kbkdf.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf copying src\cryptography\hazmat\primitives\kdf\pbkdf2.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf copying src\cryptography\hazmat\primitives\kdf\scrypt.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf copying src\cryptography\hazmat\primitives\kdf\x963kdf.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf copying src\cryptography\hazmat\primitives\kdf_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\kdf creating build\lib.win-amd64-3.8\cryptography\hazmat\primitives\serialization copying src\cryptography\hazmat\primitives\serialization\base.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\serialization copying src\cryptography\hazmat\primitives\serialization\pkcs12.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\serialization copying src\cryptography\hazmat\primitives\serialization\ssh.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\serialization copying src\cryptography\hazmat\primitives\serialization_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\serialization creating build\lib.win-amd64-3.8\cryptography\hazmat\primitives\twofactor copying src\cryptography\hazmat\primitives\twofactor\hotp.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\twofactor copying src\cryptography\hazmat\primitives\twofactor\totp.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\twofactor copying src\cryptography\hazmat\primitives\twofactor\utils.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\twofactor copying src\cryptography\hazmat\primitives\twofactor_init_.py -> build\lib.win-amd64-3.8\cryptography\hazmat\primitives\twofactor running egg_info writing src\cryptography.egg-info\PKG-INFO writing dependency_links to src\cryptography.egg-info\dependency_links.txt writing requirements to src\cryptography.egg-info\requires.txt writing top-level names to src\cryptography.egg-info\top_level.txt reading manifest file 'src\cryptography.egg-info\SOURCES.txt' reading manifest template 'MANIFEST.in' no previously-included directories found matching 'docs_build' warning: no previously-included files found matching 'vectors' warning: no previously-included files matching '' found under directory 'vectors' warning: no previously-included files found matching '.travis.yml' warning: no previously-included files found matching '.travis' warning: no previously-included files matching '' found under directory '.travis' warning: no previously-included files matching '*' found under directory '.github' warning: no previously-included files found matching 'release.py' warning: no previously-included files found matching '.coveragerc' warning: no previously-included files found matching 'codecov.yml' warning: no previously-included files found matching 'dev-requirements.txt' warning: no previously-included files found matching 'rtd-requirements.txt' warning: no previously-included files found matching 'tox.ini' writing manifest file 'src\cryptography.egg-info\SOURCES.txt' running build_ext generating cffi module 'build\temp.win-amd64-3.8\Release\_padding.c' creating build\temp.win-amd64-3.8 creating build\temp.win-amd64-3.8\Release generating cffi module 'build\temp.win-amd64-3.8\Release\_openssl.c' building '_openssl' extension creating build\temp.win-amd64-3.8\Release\build creating build\temp.win-amd64-3.8\Release\build\temp.win-amd64-3.8 creating build\temp.win-amd64-3.8\Release\build\temp.win-amd64-3.8\Release C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.23.28105\bin\HostX86\x64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -Ic:\python38\include -Ic:\python38\include "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.23.28105\ATLMFC\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.23.28105\include" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.8\include\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt" /Tcbuild\temp.win-amd64-3.8\Release_openssl.c /Fobuild\temp.win-amd64-3.8\Release\build\temp.win-amd64-3.8\Release_openssl.obj _openssl.c build\temp.win-amd64-3.8\Release_openssl.c(546): fatal error C1083: Cannot open include file: 'openssl/opensslv.h': No such file or directory error: command 'C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\VC\Tools\MSVC\14.23.28105\bin\HostX86\x64\cl.exe' failed with exit status 2
Does anyone have an idea what goes wrong here and how to fix it?
