Add release process guide

Author: jonathanlloyd

RELEASE_PROCESS.md

@@ -0,0 +1,33 @@
+# Release a new Push Notifications Python version
+## Requirements
+- Python
+- Twine (pip install twine)
+- .pypirc
+### pypirc
+Create a `.pypirc` file in your home directory:
+```
+[pypi]
+username = Pusher
+password = <password is in LastPass>
+```
+
+## Steps
+### Create release commit
+ - Update all references to old version (e.g. in setup.py)
+ - Commit changes with message "Bump version to x.y.z"
+ - Push changes
+ - Create Github release
+### Build package
+```
+$ python setup.py sdist bdist_wheel
+```
+### Upload to test PyPi
+```
+$ twine upload --repository-url https://test.pypi.org/legacy/ dist/*
+```
+(Then check that this worked at https://test.pypi.org)
+
+### Upload to production PyPi
+```
+$ twine upload ./dist/*
+```