micropython/tests/io/resource_stream.py

import uio
import sys

try:
    uio.resource_stream
except AttributeError:
    print('SKIP')
    raise SystemExit

buf = uio.resource_stream("data", "file2")
print(buf.read())

# resource_stream(None, ...) look ups from current dir, hence sys.path[0] hack
buf = uio.resource_stream(None, sys.path[0] + "/data/file2")
print(buf.read())