Update to 3.4 (#1925953)

Remove Python 2 support
Remove unused python-idna dependency
Add Rust support

README.md

@@ -0,0 +1,98 @@
+# PyCA cryptography
+
+https://cryptography.io/en/latest/
+
+## Packaging python-cryptography
+
+The example assumes
+
+* Fedora Rawhide (f34)
+* PyCA cryptography release ``3.4``
+* Update Bugzilla issues are ``RHBZ#00000001`` and ``RHBZ#00000002``
+* Build side tag is ``f34-build-side-12345``
+
+### Request a side tag for building
+
+python-cryptography builds depend on python-cryptography-vectors
+package. Both packages must be build in a side tag.
+
+```shell
+fedpkg request-side-tag --base-tag f34-build
+```
+
+### Build new python-cryptography-vectors first
+
+```shell
+pushd ../python-cryptography-vectors
+```
+
+Switch and update branch
+
+```shell
+fedpkg switch-branch rawhide
+fedpkg pull
+```
+
+Bump version and get sources
+
+```shell
+rpmdev-bumpspec -c "Update to 3.4 (#00000001)" -n 3.4 python-cryptography-vectors.spec
+spectool -gf python-cryptography-vectors.spec
+```
+
+Upload sources
+
+```shell
+fedpkg new-sources cryptography_vectors-3.4.tar.gz
+```
+
+Commit changes
+
+```shell
+git add sources .gitignore python-cryptography-vectors.spec
+fedpkg commit --clog
+fedpkg push
+```
+
+Build and wait for repo to regenerate
+
+```shell
+fedpkg build --target=f34-build-side-12345
+koji wait-repo --build python-cryptography-vectors-3.4-1 f34-build-side-12345
+```
+
+### Build new python-cryptography
+
+Switch and update branch
+
+```shell
+fedpkg switch-branch rawhide
+fedpkg pull
+```
+
+Bump version and get sources
+
+```shell
+rpmdev-bumpspec -c "Update to 3.4 (#00000002)" -n 3.4 python-cryptography.spec
+spectool -gf python-cryptography.spec
+```
+
+Upload new sources (**two files!**)
+
+```shell
+fedpkg new-sources cryptography-3.4.tar.gz cryptography-3.4.tar.gz.asc
+```
+
+Commit changes
+
+```shell
+git add sources .gitignore python-cryptography.spec
+fedpkg commit --clog
+fedpkg push
+```
+
+Build
+
+```shell
+fedpkg build --target=f34-build-side-12345
+```