Terry Reedy wrote:
>> [a-z_][a-z0-9_]{2,30}$) - so I suppose it wants this name to end with an
>> underscore ?
>
> No, it allows underscores. As I read that re, 'rx', etc, do match. They
No, it's one leading letter or underscore [a-z_] plus at least two letters,
underscores or digits [a-z0-9_]{2,30}