How to use a common ini configuration (between development and production) in pyramid?

I want to have a common configuration with settings that do not change across different environments (development and production). I know I could set up a global settings.py file (e.g., sql limits), but as far as I know, pyramid requires certain settings to be found in the ini file at startup (e.g., template directory paths).

Can I, and if so, how do I would do this in pyramid?