Method _trace

Lib/test/test_patma.py:3411–3427

(func, *args, **kwargs)

    @staticmethod
    def _trace(func, *args, **kwargs):
        actual_linenos = []

        def trace(frame, event, arg):
            if event == "line" and frame.f_code.co_name == func.__name__:
                assert arg is None
                relative_lineno = frame.f_lineno - func.__code__.co_firstlineno
                actual_linenos.append(relative_lineno)
            return trace

        old_trace = sys.gettrace()
        sys.settrace(trace)
        try:
            func(*args, **kwargs)
        finally:
            sys.settrace(old_trace)
        return actual_linenos

    def test_default_wildcard(self):
        def f(command):                                         # 0