Upgrading Python, no space left

I’m trying to upgrade the python version from 3.7 to 3.9, but while it’s in the middle of installing, it says that there is no space left. My project won’t start without the updated version. How do I fix this?

You should ask support@glitch.com or make a post in #feature-ideas. As a standard glitch project simply doesn’t have enough space for a full python installation- and even if it did you would require root to install.