or adopt an existing one, like maybe:

The Contributor Covenant was adopted by several prominent open source projects, including Atom, AngularJS, Eclipse, and even Rails. According to Github, total adoption of the Contributor Covenant is nearing an astounding ten thousand open source projects.

I'm trying to figure out why numpy (Or any project, really) has either unique needs or people better qualified to write a CoC than any other project or community. So much like OSS licences -- it's much better to pick an established one than write your own.

For the record, the Covenant does have a laundry list of "classes", that does not include political belief, but does mention "political" here:

 ...

"""

-CHB