micropython/tests/basics/sys1.py

# test sys module

import sys

print(sys.__name__)
print(type(sys.path))
print(type(sys.argv))
print(sys.byteorder in ('little', 'big'))

try:
    print(sys.maxsize > 100)
except AttributeError:
    # Effectively skip subtests
    print(True)

try:
    print(sys.implementation.name in ('cpython', 'micropython'))
except AttributeError:
    # Effectively skip subtests
    print(True)

try:
    raise SystemExit
except SystemExit as e:
    print("SystemExit", e.args)

try:
    sys.exit()
except SystemExit as e:
    print("SystemExit", e.args)

try:
    sys.exit(42)
except SystemExit as e:
    print("SystemExit", e.args)