I tried to install the https://pypi.org/project/keyrings.google-artifactregistry-auth/ package, but installation failed because it claims that Rust is required to install:
This package requires Rust >=1.41.0.
How can I install this? Do I need to install Rust?
Full output is here:
$ pip install keyrings.google-artifactregistry-auth
Collecting keyrings.google-artifactregistry-auth
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/76/02/9f28458631602cbc62c6d188c313ce81a2b796bc3eb4f4fa3e9c10e6e3b4/keyrings.google_artifactregistry_auth-0.0.2-py3-none-any.whl
Collecting keyring (from keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/26/f9/41230ac47f738f1ba66676dc8d3b30ca5b1f9eb0230fc204bcd9836c4ae9/keyring-23.0.1-py3-none-any.whl
Collecting requests (from keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/29/c1/24814557f1d22c56d50280771a17307e6bf87b70727d975fd6b2ce6b014a/requests-2.25.1-py2.py3-none-any.whl
Collecting google-auth (from keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/d2/c1/44179a1cfc5c3b5832a5f9c925161612471ec5f346bcd186235651d74f35/google_auth-1.30.0-py2.py3-none-any.whl
Collecting importlib-metadata>=3.6 (from keyring->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/8e/e2/49966924c93909d47612bb47d911448140a2f6c1390aec2f4c1afbe3748f/importlib_metadata-4.0.1-py3-none-any.whl
Collecting SecretStorage>=3.2; sys_platform == "linux" (from keyring->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/d9/1e/29cd69fdac7391aa51510dfd42aa70b4e6a826c8cd019ee2a8ab9ec0777f/SecretStorage-3.3.1-py3-none-any.whl
Collecting jeepney>=0.4.2; sys_platform == "linux" (from keyring->keyrings.google-artifactregistry-auth)
Using cached https://files.pythonhosted.org/packages/51/b0/a6ea72741aaac3f37fb96d195e4ee576a103c4c04e279bc6b446a70960e1/jeepney-0.6.0-py3-none-any.whl
Collecting chardet<5,>=3.0.2 (from requests->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/19/c7/fa589626997dd07bd87d9269342ccb74b1720384a4d739a1872bd84fbe68/chardet-4.0.0-py2.py3-none-any.whl
Collecting certifi>=2017.4.17 (from requests->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/5e/a0/5f06e1e1d463903cf0c0eebeb751791119ed7a4b3737fdc9a77f1cdfb51f/certifi-2020.12.5-py2.py3-none-any.whl
Collecting urllib3<1.27,>=1.21.1 (from requests->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/09/c6/d3e3abe5b4f4f16cf0dfc9240ab7ce10c2baa0e268989a4e3ec19e90c84e/urllib3-1.26.4-py2.py3-none-any.whl
Collecting idna<3,>=2.5 (from requests->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/a2/38/928ddce2273eaa564f6f50de919327bf3a00f091b5baba8dfa9460f3a8a8/idna-2.10-py2.py3-none-any.whl
Collecting rsa<5,>=3.1.4; python_version >= "3.6" (from google-auth->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/e9/93/0c0f002031f18b53af7a6166103c02b9c0667be528944137cc954ec921b3/rsa-4.7.2-py3-none-any.whl
Collecting cachetools<5.0,>=2.0.0 (from google-auth->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/bf/28/c4f5796c67ad06bb91d98d543a5e01805c1ff065e08871f78e52d2a331ad/cachetools-4.2.2-py3-none-any.whl
Requirement already satisfied: setuptools>=40.3.0 in ./env/lib/python3.7/site-packages (from google-auth->keyrings.google-artifactregistry-auth) (40.8.0)
Collecting pyasn1-modules>=0.2.1 (from google-auth->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/95/de/214830a981892a3e286c3794f41ae67a4495df1108c3da8a9f62159b9a9d/pyasn1_modules-0.2.8-py2.py3-none-any.whl
Collecting six>=1.9.0 (from google-auth->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/d9/5a/e7c31adbe875f2abbb91bd84cf2dc52d792b5a01506781dbcf25c91daf11/six-1.16.0-py2.py3-none-any.whl
Collecting typing-extensions>=3.6.4; python_version < "3.8" (from importlib-metadata>=3.6->keyring->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/2e/35/6c4fff5ab443b57116cb1aad46421fb719bed2825664e8fe77d66d99bcbc/typing_extensions-3.10.0.0-py3-none-any.whl
Collecting zipp>=0.5 (from importlib-metadata>=3.6->keyring->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/0f/8c/715c54e9e34c0c4820f616a913a7de3337d0cd79074dd1bed4dd840f16ae/zipp-3.4.1-py3-none-any.whl
Collecting cryptography>=2.0 (from SecretStorage>=3.2; sys_platform == "linux"->keyring->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/9b/77/461087a514d2e8ece1c975d8216bc03f7048e6090c5166bc34115afdaa53/cryptography-3.4.7.tar.gz
Installing build dependencies: started
Installing build dependencies: finished with status 'done'
Collecting pyasn1>=0.1.3 (from rsa<5,>=3.1.4; python_version >= "3.6"->google-auth->keyrings.google-artifactregistry-auth)
Cache entry deserialization failed, entry ignored
Using cached https://files.pythonhosted.org/packages/62/1e/a94a8d635fa3ce4cfc7f506003548d0a2447ae76fd5ca53932970fe3053f/pyasn1-0.4.8-py2.py3-none-any.whl
Collecting cffi>=1.12 (from cryptography>=2.0->SecretStorage>=3.2; sys_platform == "linux"->keyring->keyrings.google-artifactregistry-auth)
Using cached https://files.pythonhosted.org/packages/97/2d/cd29c79f2eb1384577d0662f23c89d29621152f14bef8c6b25747785744b/cffi-1.14.5-cp37-cp37m-manylinux1_x86_64.whl
Collecting pycparser (from cffi>=1.12->cryptography>=2.0->SecretStorage>=3.2; sys_platform == "linux"->keyring->keyrings.google-artifactregistry-auth)
Using cached https://files.pythonhosted.org/packages/ae/e7/d9c3a176ca4b02024debf82342dab36efadfc5776f9c8db077e8f6e71821/pycparser-2.20-py2.py3-none-any.whl
...
Installing collected packages: typing-extensions, zipp, importlib-metadata, pycparser, cffi, cryptography, jeepney, SecretStorage, keyring, chardet, certifi, urllib3, idna, requests, pyasn1, rsa, cachetools, pyasn1-modules, six, google-auth, keyrings.google-artifactregistry-auth
Running setup.py install for cryptography: started
Running setup.py install for cryptography: finished with status 'error'
Complete output from command /tmp/env/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-_54nhq8a/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 /tmp/pip-record-tfcrao8e/install-record.txt --single-version-externally-managed --compile --install-headers /tmp/env/include/site/python3.7/cryptography:
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.7
creating build/lib.linux-x86_64-3.7/cryptography
copying src/cryptography/exceptions.py -> build/lib.linux-x86_64-3.7/cryptography
copying src/cryptography/fernet.py -> build/lib.linux-x86_64-3.7/cryptography
copying src/cryptography/__about__.py -> build/lib.linux-x86_64-3.7/cryptography
copying src/cryptography/utils.py -> build/lib.linux-x86_64-3.7/cryptography
copying src/cryptography/__init__.py -> build/lib.linux-x86_64-3.7/cryptography
creating build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/oid.py -> build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/extensions.py -> build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/ocsp.py -> build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/base.py -> build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/general_name.py -> build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/certificate_transparency.py -> build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/x509
copying src/cryptography/x509/name.py -> build/lib.linux-x86_64-3.7/cryptography/x509
creating build/lib.linux-x86_64-3.7/cryptography/hazmat
copying src/cryptography/hazmat/_oid.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat
copying src/cryptography/hazmat/_der.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat
copying src/cryptography/hazmat/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat
copying src/cryptography/hazmat/_types.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/bindings
copying src/cryptography/hazmat/bindings/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/bindings
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/cmac.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hashes.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/hmac.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/poly1305.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/_cipheralgorithm.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/padding.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/constant_time.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/_serialization.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/keywrap.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
copying src/cryptography/hazmat/primitives/_asymmetric.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/interfaces.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends
copying src/cryptography/hazmat/backends/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/binding.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/_conditional.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/bindings/openssl
copying src/cryptography/hazmat/bindings/openssl/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/bindings/openssl
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/pbkdf2.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/concatkdf.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/scrypt.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/kbkdf.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/hkdf.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/x963kdf.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
copying src/cryptography/hazmat/primitives/kdf/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/kdf
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/ssh.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/pkcs7.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/base.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/pkcs12.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/serialization
copying src/cryptography/hazmat/primitives/serialization/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/serialization
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ed448.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ed25519.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/rsa.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dsa.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/x25519.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/dh.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/ec.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/padding.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/utils.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/x448.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
copying src/cryptography/hazmat/primitives/asymmetric/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/asymmetric
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/algorithms.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/modes.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/aead.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/base.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/ciphers
copying src/cryptography/hazmat/primitives/ciphers/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/ciphers
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/hotp.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/utils.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/totp.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/twofactor
copying src/cryptography/hazmat/primitives/twofactor/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/primitives/twofactor
creating build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ed448.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ed25519.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/cmac.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/rsa.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/aead.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ciphers.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dsa.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x509.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x25519.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ocsp.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hashes.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/hmac.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/dh.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/ec.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/poly1305.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/decode_asn1.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/utils.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/backend.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/x448.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/__init__.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/openssl
copying src/cryptography/hazmat/backends/openssl/encode_asn1.py -> build/lib.linux-x86_64-3.7/cryptography/hazmat/backends/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.BSD'
adding license file 'LICENSE.PSF'
adding license file 'LICENSE.APACHE'
writing manifest file 'src/cryptography.egg-info/SOURCES.txt'
copying src/cryptography/py.typed -> build/lib.linux-x86_64-3.7/cryptography
running build_ext
generating cffi module 'build/temp.linux-x86_64-3.7/_padding.c'
creating build/temp.linux-x86_64-3.7
generating cffi module 'build/temp.linux-x86_64-3.7/_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.
----------------------------------------
Command "/tmp/env/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-_54nhq8a/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 /tmp/pip-record-tfcrao8e/install-record.txt --single-version-externally-managed --compile --install-headers /tmp/env/include/site/python3.7/cryptography" failed with error code 1 in /tmp/pip-install-_54nhq8a/cryptography/
The issue is that your pip version is too old to install one of this project's subdependencies, cryptography, which is using newer features.
Upgrading pip with the following will make it possible to install this package:
$ pip install -U pip