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Diffstat (limited to 'docs')
| -rw-r--r-- | docs/faq.rst | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/docs/faq.rst b/docs/faq.rst index 409f6ce0..dce94b73 100644 --- a/docs/faq.rst +++ b/docs/faq.rst @@ -99,6 +99,18 @@ support multiple versions of Python. The Python 3.4 ``abi3`` wheel can be used with any version of Python greater than or equal to 3.4. Recent versions of ``pip`` will automatically install ``abi3`` wheels. +``ImportError``: ``idna`` is not installed +------------------------------------------ + +``cryptography`` deprecated passing :term:`U-label` strings to various X.509 +constructors in version 2.1 and in version 2.5 moved the ``idna`` dependency +to a ``setuptools`` extra. If you see this exception you should upgrade your +software so that it no longer depends on this deprecated feature. If that is +not yet possible you can also install ``cryptography`` with +``pip install cryptography[idna]`` to automatically install the missing +dependency. This workaround will be available until the feature is fully +removed. + .. _`NaCl`: https://nacl.cr.yp.to/ .. _`PyNaCl`: https://pynacl.readthedocs.io .. _`WSGIApplicationGroup`: https://modwsgi.readthedocs.io/en/develop/configuration-directives/WSGIApplicationGroup.html |