Error while installing requirements (using requirements.txt)
...
Building wheel for cryptography (PEP 517) ... error
ERROR: Command errored out with exit status 1:
command: /Users/sachinbhandare/samples-python-flask/python3/bin/python3 /Users/sachinbhandare/samples-python-flask/python3/lib/python3.8/site-packages/pip/_vendor/pep517/_in_process.py build_wheel /var/folders/1g/z4l8lqfn3tbg_7pj3006g60w0000gp/T/tmp144jwm0z
cwd: /private/var/folders/1g/z4l8lqfn3tbg_7pj3006g60w0000gp/T/pip-install-bfg30o6e/cryptography
Complete output (165 lines):
running bdist_wheel
running build
running build_py
creating build
creating build/lib.macosx-10.14.6-x86_64-3.8
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography
copying src/cryptography/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography
copying src/cryptography/utils.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography
copying src/cryptography/about.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography
copying src/cryptography/exceptions.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography
copying src/cryptography/fernet.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat
copying src/cryptography/hazmat/_der.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat
copying src/cryptography/hazmat/_types.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat
copying src/cryptography/hazmat/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat
copying src/cryptography/hazmat/_oid.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/oid.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/ocsp.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/general_name.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/extensions.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/name.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/base.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
copying src/cryptography/x509/certificate_transparency.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/x509
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/interfaces.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/_serialization.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/cmac.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/_asymmetric.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/_cipheralgorithm.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/poly1305.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/constant_time.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/keywrap.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hmac.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hashes.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/padding.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/bindings
copying src/cryptography/hazmat/bindings/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/bindings
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x448.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/backend.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ec.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ciphers.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ocsp.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x509.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/aead.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/encode_asn1.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/rsa.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dh.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/cmac.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/utils.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/poly1305.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ed25519.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dsa.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/decode_asn1.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hmac.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ed448.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x25519.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hashes.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/backends/openssl
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/scrypt.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/pbkdf2.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/hkdf.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/x963kdf.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/kbkdf.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/concatkdf.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/kdf
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/totp.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/hotp.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/utils.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/twofactor
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/pkcs12.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/pkcs7.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/ssh.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/base.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/serialization
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/algorithms.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/aead.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/modes.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/base.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/ciphers
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/x448.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ec.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/rsa.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dh.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/utils.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ed25519.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dsa.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ed448.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/x25519.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/padding.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/primitives/asymmetric
creating build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/init.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/_conditional.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/binding.py -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography/hazmat/bindings/openssl
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 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 '.readthedocs.yml'
warning: no previously-included files found matching 'dev-requirements.txt'
warning: no previously-included files found matching 'tox.ini'
warning: no previously-included files found matching 'mypy.ini'
warning: no previously-included files matching '' found under directory '.zuul.d'
warning: no previously-included files matching '' found under directory '.zuul.playbooks'
adding license file 'LICENSE'
adding license file 'LICENSE.APACHE'
adding license file 'LICENSE.BSD'
adding license file 'LICENSE.PSF'
writing manifest file 'src/cryptography.egg-info/SOURCES.txt'
copying src/cryptography/py.typed -> build/lib.macosx-10.14.6-x86_64-3.8/cryptography
running build_ext
generating cffi module 'build/temp.macosx-10.14.6-x86_64-3.8/_padding.c'
creating build/temp.macosx-10.14.6-x86_64-3.8
generating cffi module 'build/temp.macosx-10.14.6-x86_64-3.8/_openssl.c'
running build_rust
=============================DEBUG ASSISTANCE=============================
If you are seeing a compilation error please try the following steps to
successfully install cryptography:
1) Upgrade to the latest pip and try again. This will fix errors for most
users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip
2) Read https://cryptography.io/en/latest/installation.html for specific
instructions for your platform.
3) Check our frequently asked questions for more information:
https://cryptography.io/en/latest/faq.html
4) Ensure you have a recent Rust toolchain installed:
https://cryptography.io/en/latest/installation.html#rust
5) If you are experiencing issues with Rust for *this release only* you may
set the environment variable `CRYPTOGRAPHY_DONT_BUILD_RUST=1`.
=============================DEBUG ASSISTANCE=============================
error: can't find Rust compiler
If you are using an outdated pip version, it is possible a prebuilt wheel is available for this package but pip is not able to install from it. Installing from the wheel would avoid the need for a Rust compiler.
To update pip, run:
pip install --upgrade pip
and then retry package installation.
If you did intend to build this package from source, try installing a Rust compiler from your system package manager and ensure it is on the PATH during installation. Alternatively, rustup (available at https://rustup.rs) is the recommended way to download and update the Rust compiler toolchain.
This package requires Rust >=1.41.0.
ERROR: Failed building wheel for cryptography
Running setup.py clean for cryptography
ERROR: Command errored out with exit status 1:
command: /Users/sachinbhandare/samples-python-flask/python3/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/1g/z4l8lqfn3tbg_7pj3006g60w0000gp/T/pip-install-bfg30o6e/cryptography/setup.py'"'"'; file='"'"'/private/var/folders/1g/z4l8lqfn3tbg_7pj3006g60w0000gp/T/pip-install-bfg30o6e/cryptography/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' clean --all
cwd: /private/var/folders/1g/z4l8lqfn3tbg_7pj3006g60w0000gp/T/pip-install-bfg30o6e/cryptography
Complete output (36 lines):
running clean
removing 'build/temp.macosx-10.14.6-x86_64-3.8' (and everything under it)
removing 'build/lib.macosx-10.14.6-x86_64-3.8' (and everything under it)
'build/bdist.macosx-10.14.6-x86_64' does not exist -- can't clean it
'build/scripts-3.8' does not exist -- can't clean it
removing 'build'
running clean_rust
=============================DEBUG ASSISTANCE=============================
If you are seeing a compilation error please try the following steps to
successfully install cryptography:
1) Upgrade to the latest pip and try again. This will fix errors for most
users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip
2) Read https://cryptography.io/en/latest/installation.html for specific
instructions for your platform.
3) Check our frequently asked questions for more information:
https://cryptography.io/en/latest/faq.html
4) Ensure you have a recent Rust toolchain installed:
https://cryptography.io/en/latest/installation.html#rust
5) If you are experiencing issues with Rust for *this release only* you may
set the environment variable `CRYPTOGRAPHY_DONT_BUILD_RUST=1`.
=============================DEBUG ASSISTANCE=============================
error: can't find Rust compiler
If you are using an outdated pip version, it is possible a prebuilt wheel is available for this package but pip is not able to install from it. Installing from the wheel would avoid the need for a Rust compiler.
To update pip, run:
pip install --upgrade pip
and then retry package installation.
If you did intend to build this package from source, try installing a Rust compiler from your system package manager and ensure it is on the PATH during installation. Alternatively, rustup (available at https://rustup.rs) is the recommended way to download and update the Rust compiler toolchain.
This package requires Rust >=1.41.0.
ERROR: Failed cleaning build dir for cryptography
...
..
To resolve, I had to create a virutual environment.
samples-python-flask % python3 -m venv python3
Activate it
samples-python-flask % source python3/bin/activate
(python3) samples-python-flask % which pip
/Users/MYHOME/samples-python-flask/python3/bin/pip
(python3) samples-python-flask % pip --version
pip 19.2.3 from /Users/MYHOME/samples-python-flask/python3/lib/python3.8/site-packages/pip (python 3.8)
(python3) samples-python-flask % pip install --upgrade pip
...
Successfully installed pip-21.1.3
Then installed the dependencies
samples-python-flask % pip install -r requirements.txt
... Dependencies got installed successfuly .. this time.
okta-hosted-login % python main.py
- Serving Flask app "main" (lazy loading)
- Environment: production
...
Remark - this time it worked fine.
Hope these steps helps.