Python cryptography invalid environment marker

Describes the cause and action for error messages.


Error Message(English):
cryptography invalid environment marker

Resolution


関連リンク


error in cryptography setup command: Invalid environment marker ...
https://github.com/ansible/ansible/issues/31741

Pip install may be broken with update to cryptography ・ Issue #702 ...
https://github.com/pyca/pyopenssl/issues/702

Installing: Invalid environment marker: python_version<"3.4" ・ Issue ...
https://github.com/PyCQA/astroid/issues/358

Installing scrapy on ubuntu 14.04 fails with error in cryptography ...
https://stackoverflow.com/questions/46767097/installing-scrapy-on-ubuntu-14-04-fails-with-error-in-c・・・

Unable to build scrapy based project due to invalid ...
https://stackoverflow.com/questions/47766609/unable-to-build-scrapy-based-project-due-to-invalid-env・・・

Can't install pyOpenSSL for Python 3
https://stackoverflow.com/questions/47520207/cant-install-pyopenssl-for-python-3

Installing paramiko
https://stackoverflow.com/questions/47452143/installing-paramiko

Fails to install cryptography when a pants build is run
https://stackoverflow.com/questions/46784908/fails-to-install-cryptography-when-a-pants-build-is-run・・・

Frequently asked questions ? Cryptography 2.6.dev1 documentation
https://cryptography.io/en/latest/faq/

error in cryptography setup command: Invalid environment marker
https://stuart-moore.com/pywinrm-install-fail-error-in-cryptography-setup-command-invalid-environmen・・・



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