Hey, there. It seems like it's not possible to define multiple classes in a single Python file with py.RunSrc(), unless I'm misunderstanding something...? It works with py.RunFile(), though.

Go:

context := py.NewContext(py.DefaultContextOpts())

data, _ := fs.ReadFile(g.FS, "math_stuff.py")

_, err := py.RunSrc(context, string(data), "run", nil)

log.Println(err)

math_stuff.py

class A:
    pass


class B:
    pass

Gives me the error:

2026/07/02 15:06:16
  File "run", line 5, offset 5
    class B:


SyntaxError: 'invalid syntax'

I'm testing with the latest commit.