Building/Installing octodns and octodns-azure on OpenBSD 7.3

In attempting to install octodns and octodns-azure from PyPi, I run into some issues with octodns-azure as it is asking for the cryptography package, version 41.x.y

This works normally as expected:

$ pip install octodns

However when performing:

$ pip install octodns-azure

I first was prompted to make sure rust was installed, which I performed.
Then afterwards, after a long time compiling code the error message(s) are:


<output>

error: failed to run custom build command for `cryptography-cffi v0.1.0 (/tmp/pip-install-qyp1zwp3/cryptography_cab14d66a54442209297c1df6c926001/src/rust/cryptography-cffi)`

Caused by:
process didn't exit successfully: `/tmp/pip-install-qyp1zwp3/cryptography_cab14d66a54442209297c1df6c926001/src/rust/target/release/build/cryptography-cffi-c1471cf641a055d0/build-script-build` (exit status: 101)
--- stdout
cargo:rerun-if-env-changed=PYO3_PYTHON
cargo:rerun-if-changed=../../_cffi_src/
cargo:rerun-if-changed=../../cryptography/__about__.py
cargo:rustc-cfg=python_implementation="CPython"

--- stderr
thread 'main' panicked at 'unable to find openssl include path', cryptography-cffi/build.rs:56:49
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...

=============================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/ for specific
instructions for your platform.
3) Check our frequently asked questions for more information:
https://cryptography.io/en/latest/faq/
4) Ensure you have a recent Rust toolchain installed:
https://cryptography.io/en/latest/installation/#rust

Python: 3.10.13
platform: OpenBSD-7.3-amd64-64bit-ELF
pip: n/a
setuptools: 68.2.2
setuptools_rust: 1.7.0
rustc: 1.68.0 (2c8cc3432 2023-03-06) (built from a source tarball)
=============================DEBUG ASSISTANCE=============================

error: `cargo rustc --lib --message-format=json-render-diagnostics --manifest-path src/rust/Cargo.toml --release -v --features pyo3/extension-module --crate-type cdylib --` failed with code 101
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for cryptography
Failed to build cryptography
ERROR: Could not build wheels for cryptography, which is required to install pyproject.toml-based projects

</output>

The current py3-cryptography package is version 39.01, and as well takes quite a while to install using pkg_add.

Do you have any ideas on how I would get octodns-azure to install on OpenBSD 7.3?


--
Russell Sutherland
Supervisor, Network Development, EIS, ITS
4 Bancroft Ave. Room 102
University of Toronto
Toronto, ON M5S 1C1

Tel. +1 416 978 0470
Email russell.sutherland@utoronto.ca