Python _dummy_thread.start_new_thread() Examples

def test_uncond_acquire_blocking(self):
        #Make sure that unconditional acquiring of a locked lock blocks.
        def delay_unlock(to_unlock, delay):
            """Hold on to lock for a set amount of time before unlocking."""
            time.sleep(delay)
            to_unlock.release()

        self.lock.acquire()
        start_time = int(time.time())
        _thread.start_new_thread(delay_unlock,(self.lock, DELAY))
        if support.verbose:
            print()
            print("*** Waiting for thread to release the lock "\
            "(approx. %s sec.) ***" % DELAY)
        self.lock.acquire()
        end_time = int(time.time())
        if support.verbose:
            print("done")
        self.assertTrue((end_time - start_time) >= DELAY,
                        "Blocking by unconditional acquiring failed.") 

def test_arg_passing(self):
        #Make sure that parameter passing works.
        def arg_tester(queue, arg1=False, arg2=False):
            """Use to test _thread.start_new_thread() passes args properly."""
            queue.put((arg1, arg2))

        testing_queue = queue.Queue(1)
        _thread.start_new_thread(arg_tester, (testing_queue, True, True))
        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation using tuple failed")
        _thread.start_new_thread(arg_tester, tuple(), {'queue':testing_queue,
                                                       'arg1':True, 'arg2':True})
        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation using kwargs failed")
        _thread.start_new_thread(arg_tester, (testing_queue, True), {'arg2':True})
        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation using both tuple"
                        " and kwargs failed") 

def test_uncond_acquire_blocking(self):
        #Make sure that unconditional acquiring of a locked lock blocks.
        def delay_unlock(to_unlock, delay):
            """Hold on to lock for a set amount of time before unlocking."""
            time.sleep(delay)
            to_unlock.release()

        self.lock.acquire()
        start_time = int(time.time())
        _thread.start_new_thread(delay_unlock,(self.lock, DELAY))
        if support.verbose:
            print()
            print("*** Waiting for thread to release the lock "\
            "(approx. %s sec.) ***" % DELAY)
        self.lock.acquire()
        end_time = int(time.time())
        if support.verbose:
            print("done")
        self.assertGreaterEqual(end_time - start_time, DELAY,
                        "Blocking by unconditional acquiring failed.") 

def test_arg_passing(self):
        #Make sure that parameter passing works.
        def arg_tester(queue, arg1=False, arg2=False):
            """Use to test _thread.start_new_thread() passes args properly."""
            queue.put((arg1, arg2))

        testing_queue = queue.Queue(1)
        _thread.start_new_thread(arg_tester, (testing_queue, True, True))
        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation using tuple failed")
        _thread.start_new_thread(arg_tester, tuple(), {'queue':testing_queue,
                                                       'arg1':True, 'arg2':True})
        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation using kwargs failed")
        _thread.start_new_thread(arg_tester, (testing_queue, True), {'arg2':True})
        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation using both tuple"
                        " and kwargs failed") 

def test_uncond_acquire_blocking(self):
        #Make sure that unconditional acquiring of a locked lock blocks.
        def delay_unlock(to_unlock, delay):
            """Hold on to lock for a set amount of time before unlocking."""
            time.sleep(delay)
            to_unlock.release()

        self.lock.acquire()
        start_time = int(time.time())
        _thread.start_new_thread(delay_unlock,(self.lock, DELAY))
        if support.verbose:
            print()
            print("*** Waiting for thread to release the lock "\
            "(approx. %s sec.) ***" % DELAY)
        self.lock.acquire()
        end_time = int(time.time())
        if support.verbose:
            print("done")
        self.assertTrue((end_time - start_time) >= DELAY,
                        "Blocking by unconditional acquiring failed.") 

def test_arg_passing(self):
        #Make sure that parameter passing works.
        def arg_tester(queue, arg1=False, arg2=False):
            """Use to test _thread.start_new_thread() passes args properly."""
            queue.put((arg1, arg2))

        testing_queue = queue.Queue(1)
        _thread.start_new_thread(arg_tester, (testing_queue, True, True))
        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation "
                        "using tuple failed")

        _thread.start_new_thread(
                arg_tester,
                tuple(),
                {'queue':testing_queue, 'arg1':True, 'arg2':True})

        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation "
                        "using kwargs failed")

        _thread.start_new_thread(
                arg_tester,
                (testing_queue, True),
                {'arg2':True})

        result = testing_queue.get()
        self.assertTrue(result[0] and result[1],
                        "Argument passing for thread creation using both tuple"
                        " and kwargs failed") 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def test_interrupt_main(self):
        #Calling start_new_thread with a function that executes interrupt_main
        # should raise KeyboardInterrupt upon completion.
        def call_interrupt():
            _thread.interrupt_main()

        self.assertRaises(KeyboardInterrupt,
                          _thread.start_new_thread,
                          call_interrupt,
                          tuple()) 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def test_args_not_tuple(self):
        """
        Test invoking start_new_thread() with a non-tuple value for "args".
        Expect TypeError with a meaningful error message to be raised.
        """
        with self.assertRaises(TypeError) as cm:
            _thread.start_new_thread(mock.Mock(), [])
        self.assertEqual(cm.exception.args[0], "2nd arg must be a tuple") 

def test_kwargs_not_dict(self):
        """
        Test invoking start_new_thread() with a non-dict value for "kwargs".
        Expect TypeError with a meaningful error message to be raised.
        """
        with self.assertRaises(TypeError) as cm:
            _thread.start_new_thread(mock.Mock(), tuple(), kwargs=[])
        self.assertEqual(cm.exception.args[0], "3rd arg must be a dict") 

def test_SystemExit(self):
        """
        Test invoking start_new_thread() with a function that raises
        SystemExit.
        The exception should be discarded.
        """
        func = mock.Mock(side_effect=SystemExit())
        try:
            _thread.start_new_thread(func, tuple())
        except SystemExit:
            self.fail("start_new_thread raised SystemExit.") 

def test_RaiseException(self, mock_print_exc):
        """
        Test invoking start_new_thread() with a function that raises exception.

        The exception should be discarded and the traceback should be printed
        via traceback.print_exc()
        """
        func = mock.Mock(side_effect=Exception)
        _thread.start_new_thread(func, tuple())
        self.assertTrue(mock_print_exc.called) 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True

# Brython-specific to avoid circular references between threading and _threading_local 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True 

def start_new_thread(function, args, kwargs={}):
    """Dummy implementation of _thread.start_new_thread().

    Compatibility is maintained by making sure that ``args`` is a
    tuple and ``kwargs`` is a dictionary.  If an exception is raised
    and it is SystemExit (which can be done by _thread.exit()) it is
    caught and nothing is done; all other exceptions are printed out
    by using traceback.print_exc().

    If the executed function calls interrupt_main the KeyboardInterrupt will be
    raised when the function returns.

    """
    if type(args) != type(tuple()):
        raise TypeError("2nd arg must be a tuple")
    if type(kwargs) != type(dict()):
        raise TypeError("3rd arg must be a dict")
    global _main
    _main = False
    try:
        function(*args, **kwargs)
    except SystemExit:
        pass
    except:
        import traceback
        traceback.print_exc()
    _main = True
    global _interrupt
    if _interrupt:
        _interrupt = False
        raise KeyboardInterrupt 

def interrupt_main():
    """Set _interrupt flag to True to have start_new_thread raise
    KeyboardInterrupt upon exiting."""
    if _main:
        raise KeyboardInterrupt
    else:
        global _interrupt
        _interrupt = True