PyCA cryptography

https://cryptography.io/en/latest/

Packaging python-cryptography

The example assumes

• Fedora Rawhide (f34)
• PyCA cryptography release 3.4
• Update Bugzilla issue is RHBZ#00000001

Build new python-cryptography

Switch and update branch

fedpkg switch-branch rawhide
fedpkg pull

Bump version and get sources

rpmdev-bumpspec -c "Update to 3.4 (#00000001)" -n 3.4 python-cryptography.spec
spectool -gf python-cryptography.spec

Upload new source

fedpkg new-sources cryptography-3.4.tar.gz

Commit changes

fedpkg commit --clog
fedpkg push

Build

fedpkg build

RHEL/CentOS builds

RHEL and CentOS use a different approach for Rust crates packaging than Fedora. On Fedora Rust dependencies are packaged as RPMs, e.g. rust-pyo3+default-devel RPM. These packages don't exist on RHEL and CentOS. Instead python-cryptography uses a tar ball with vendored crates. The tar ball is created by a script:

./vendor_rust.py
rhpkg upload cryptography-3.4-vendor.tar.bz2