import sys

def detect_test_env():
    i = 0
    while True:
        i += 1
        try:
            frame_module = sys._getframe(i).f_globals.get('__name__')
        except ValueError:
            return False

        if frame_module == '__main__' or frame_module == '__console__':
            return False
        elif frame_module is not None and frame_module.startswith('nose.'):
            return True

is_testing = detect_test_env()