No module named xxx problem ,when the xxx is a so file ..

[JH6588]

Describe what happened:
the first line of py code
from xxx import play

Describe what you expected:
the xxx is a so file.
Run the py script in command line is fine

Steps to reproduce the issue:
I read the the py script as string in go named code ,then python3.PyRun_SimpleString(code)
Not work , ModuleNotFoundError: no module named 'xxx'

[christian-korneck]

the path to the dir that contains the python module that you want to import needs to be in Python's sys.path list.

You can print the list with something like:

pycode := `
import sys
for path in sys.path:
  print(path)
`
python3.PyRun_SimpleString(pycode)

and also append a missing path, if needed

dir := "/some/custom/site-packages"
python3.PyRun_SimpleString("import sys\nsys.path.append(\"" + dir + "\")")

Here's a more complete example that adds the same path as the compiled Go program:

dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
if err != nil {
	log.Fatal(err)
}
ret := python3.PyRun_SimpleString("import sys\nsys.path.append(\"" + dir + "\")")
if ret != 0 {
	log.Fatalf("error appending '%s' to python sys.path", dir)
}

for completeness: instead of doing this in a PyRun_SimpleString() (which only has limited error handling) you could also use PySys_GetObject("path") + PySys_SetPath().

[JH6588]

It's very helpful ,my problem was solved . Thank you.