Python manager.InProcessKernelManager类代码示例

 def test_execute(self):
     """ Does executing code in an in-process kernel work?
     """
     km = InProcessKernelManager()
     km.start_kernel()
     kc = BlockingInProcessKernelClient(kernel=km.kernel)
     kc.start_channels()
     kc.execute('foo = 1')
     self.assertEquals(km.kernel.shell.user_ns['foo'], 1)

 def test_complete(self):
     """ Does requesting completion from an in-process kernel work?
     """
     km = InProcessKernelManager()
     km.start_kernel()
     kc = BlockingInProcessKernelClient(kernel=km.kernel)
     kc.start_channels()
     km.kernel.shell.push({"my_bar": 0, "my_baz": 1})
     kc.complete("my_ba", "my_ba", 5)
     msg = kc.get_shell_msg()
     self.assertEqual(msg["header"]["msg_type"], "complete_reply")
     self.assertEqual(sorted(msg["content"]["matches"]), ["my_bar", "my_baz"])

 def test_object_info(self):
     """ Does requesting object information from an in-process kernel work?
     """
     km = InProcessKernelManager()
     km.start_kernel()
     kc = BlockingInProcessKernelClient(kernel=km.kernel)
     kc.start_channels()
     km.kernel.shell.user_ns['foo'] = 1
     kc.object_info('foo')
     msg = kc.get_shell_msg()
     self.assertEquals(msg['header']['msg_type'], 'object_info_reply')
     self.assertEquals(msg['content']['name'], 'foo')
     self.assertEquals(msg['content']['type_name'], 'int')

 def test_complete(self):
     """ Does requesting completion from an in-process kernel work?
     """
     km = InProcessKernelManager()
     km.start_kernel()
     kc = BlockingInProcessKernelClient(kernel=km.kernel)
     kc.start_channels()
     km.kernel.shell.push({'my_bar': 0, 'my_baz': 1})
     kc.complete('my_ba', 'my_ba', 5)
     msg = kc.get_shell_msg()
     self.assertEqual(msg['header']['msg_type'], 'complete_reply')
     self.assertEqual(sorted(msg['content']['matches']),
                       ['my_bar', 'my_baz'])

def get_kernel_pointer(buffer):
    lisp.message("getting kernel for " + buffer)
    if buffer not in kernels:
        lisp.message("creating new " + buffer)
        km = InProcessKernelManager()
        km.start_kernel()
        kc = BlockingInProcessKernelClient(kernel=km.kernel)
        kc.start_channels()
        kernel = InProcessKernel()
        kernels[buffer] = (kc,kernel,kernel.shell.get_ipython())
        # run this so that plt, np pointers are ready
        kc.shell_channel.execute('%pylab inline')
    return kernels[buffer]

 def test_history(self):
     """ Does requesting history from an in-process kernel work?
     """
     km = InProcessKernelManager()
     km.start_kernel()
     kc = BlockingInProcessKernelClient(kernel=km.kernel)
     kc.start_channels()
     kc.execute('%who')
     kc.history(hist_access_type='tail', n=1)
     msg = kc.shell_channel.get_msgs()[-1]
     self.assertEquals(msg['header']['msg_type'], 'history_reply')
     history = msg['content']['history']
     self.assertEquals(len(history), 1)
     self.assertEquals(history[0][2], '%who')

    def test_interface(self):
        """ Does the in-process kernel manager implement the basic KM interface?
        """
        km = InProcessKernelManager()
        self.assert_(not km.has_kernel)

        km.start_kernel()
        self.assert_(km.has_kernel)
        self.assert_(km.kernel is not None)

        kc = km.client()
        self.assert_(not kc.channels_running)

        kc.start_channels()
        self.assert_(kc.channels_running)

        old_kernel = km.kernel
        km.restart_kernel()
        self.assertIsNotNone(km.kernel)
        self.assertNotEquals(km.kernel, old_kernel)

        km.shutdown_kernel()
        self.assert_(not km.has_kernel)

        self.assertRaises(NotImplementedError, km.interrupt_kernel)
        self.assertRaises(NotImplementedError, km.signal_kernel, 9)

        kc.stop_channels()
        self.assert_(not kc.channels_running)

 def test_inspect(self):
     """ Does requesting object information from an in-process kernel work?
     """
     km = InProcessKernelManager()
     km.start_kernel()
     kc = BlockingInProcessKernelClient(kernel=km.kernel)
     kc.start_channels()
     km.kernel.shell.user_ns['foo'] = 1
     kc.inspect('foo')
     msg = kc.get_shell_msg()
     self.assertEqual(msg['header']['msg_type'], 'inspect_reply')
     content = msg['content']
     assert content['found']
     text = content['data']['text/plain']
     self.assertIn('int', text)

    def __init__(self):
        self.km = InProcessKernelManager()
        self.km.start_kernel()

        if platform.system() == 'Darwin':
            # There is sometimes a race condition where the first
            # execute command hits the kernel before it's ready.
            # It appears to happen only on Darwin (Mac OS) and an
            # easy (but clumsy) way to mitigate it is to sleep
            # for a second.
            sleep(1)

        self.kc = self.km.client()
        self.kc.start_channels()

        self.shell = self.kc.shell_channel
        self.iopub = self.kc.iopub_channel
        self.kc.kernel.shell.enable_matplotlib('inline')

        self.shell.execute(WARMUP)
        print("Result: {!r}".format(self.shell.get_msg()))

        try:
            while True:
                msg = self.iopub.get_msg(timeout=0)
                print("iopub Message: {!r}".format(msg))
        except Empty:
            pass

class InProcessKernelTestCase(unittest.TestCase):

    def setUp(self):
        self.km = InProcessKernelManager()
        self.km.start_kernel()
        self.kc = self.km.client()
        self.kc.start_channels()
        self.kc.wait_for_ready()

    @skipif_not_matplotlib
    def test_pylab(self):
        """Does %pylab work in the in-process kernel?"""
        kc = self.kc
        kc.execute('%pylab')
        out, err = assemble_output(kc.iopub_channel)
        self.assertIn('matplotlib', out)

    def test_raw_input(self):
        """ Does the in-process kernel handle raw_input correctly?
        """
        io = StringIO('foobar\n')
        sys_stdin = sys.stdin
        sys.stdin = io
        try:
            if py3compat.PY3:
                self.kc.execute('x = input()')
            else:
                self.kc.execute('x = raw_input()')
        finally:
            sys.stdin = sys_stdin
        self.assertEqual(self.km.kernel.shell.user_ns.get('x'), 'foobar')

    def test_stdout(self):
        """ Does the in-process kernel correctly capture IO?
        """
        kernel = InProcessKernel()

        with capture_output() as io:
            kernel.shell.run_cell('print("foo")')
        self.assertEqual(io.stdout, 'foo\n')

        kc = BlockingInProcessKernelClient(kernel=kernel, session=kernel.session)
        kernel.frontends.append(kc)
        kc.execute('print("bar")')
        out, err = assemble_output(kc.iopub_channel)
        self.assertEqual(out, 'bar\n')

class InProcessKernelTestCase(unittest.TestCase):

    def setUp(self):
        self.km = InProcessKernelManager()
        self.km.start_kernel()
        self.kc = BlockingInProcessKernelClient(kernel=self.km.kernel)
        self.kc.start_channels()

    @skipif_not_matplotlib
    def test_pylab(self):
        """ Does pylab work in the in-process kernel?
        """
        kc = self.kc
        kc.execute('%pylab')
        msg = get_stream_message(kc)
        self.assert_('Welcome to pylab' in msg['content']['data'])

    def test_raw_input(self):
        """ Does the in-process kernel handle raw_input correctly?
        """
        io = StringIO('foobar\n')
        sys_stdin = sys.stdin
        sys.stdin = io
        try:
            if py3compat.PY3:
                self.kc.execute('x = input()')
            else:
                self.kc.execute('x = raw_input()')
        finally:
            sys.stdin = sys_stdin
        self.assertEqual(self.km.kernel.shell.user_ns.get('x'), 'foobar')

    def test_stdout(self):
        """ Does the in-process kernel correctly capture IO?
        """
        kernel = InProcessKernel()

        with capture_output() as io:
            kernel.shell.run_cell('print("foo")')
        self.assertEqual(io.stdout, 'foo\n')

        kc = BlockingInProcessKernelClient(kernel=kernel)
        kernel.frontends.append(kc)
        kc.shell_channel.execute('print("bar")')
        msg = get_stream_message(kc)
        self.assertEqual(msg['content']['data'], 'bar\n')

 def setUp(self):
     self.km = InProcessKernelManager()
     self.km.start_kernel()
     self.kc = BlockingInProcessKernelClient(kernel=self.km.kernel)
     self.kc.start_channels()
     self.kc.wait_for_ready()

 def setUp(self):
     self.km = InProcessKernelManager()
     self.km.start_kernel()
     self.kc = self.km.client()
     self.kc.start_channels()
     self.kc.wait_for_ready()

class NotebookRunner(object):
    # The kernel communicates with mime-types while the notebook
    # uses short labels for different cell types. We'll use this to
    # map from kernel types to notebook format types.

    MIME_MAP = {
        'image/jpeg': 'jpeg',
        'image/png': 'png',
        'text/plain': 'text',
        'text/html': 'html',
        'text/latex': 'latex',
        'application/javascript': 'html',
    }

    def __init__(self):
        self.km = InProcessKernelManager()
        self.km.start_kernel()

        if platform.system() == 'Darwin':
            # There is sometimes a race condition where the first
            # execute command hits the kernel before it's ready.
            # It appears to happen only on Darwin (Mac OS) and an
            # easy (but clumsy) way to mitigate it is to sleep
            # for a second.
            sleep(1)

        self.kc = self.km.client()
        self.kc.start_channels()

        self.shell = self.kc.shell_channel
        self.iopub = self.kc.iopub_channel
        self.kc.kernel.shell.enable_matplotlib('inline')

        self.shell.execute(WARMUP)
        print("Result: {!r}".format(self.shell.get_msg()))

        try:
            while True:
                msg = self.iopub.get_msg(timeout=0)
                print("iopub Message: {!r}".format(msg))
        except Empty:
            pass

    def __del__(self):
        self.kc.stop_channels()
        self.km.shutdown_kernel()

    def run_cell(self, cell, autosave):
        '''
        Run a notebook cell and update the output of that cell in-place.
        '''
        logging.info('Running cell:\n%s\n', cell.input)
        self.shell.execute(cell.input)

        cell['outputs'] = []
        while True:
            try:
                msg = self.iopub.get_msg(timeout=1)
                if msg['msg_type'] == 'status':
                    if msg['content']['execution_state'] == 'idle':
                        break
            except Empty:
                pass

            content = msg['content']
            msg_type = msg['msg_type']

            out = NotebookNode(output_type=msg_type)

            if 'execution_count' in content:
                cell['prompt_number'] = content['execution_count'] - 1
                out.prompt_number = content['execution_count'] - 1

            if msg_type in ['status', 'pyin']:
                continue
            elif msg_type == 'stream':
                out.stream = content['name']
                out.text = content['data']
                #print(out.text, end='')
            elif msg_type in ('display_data', 'pyout'):
                for mime, data in content['data'].items():
                    try:
                        attr = self.MIME_MAP[mime]
                    except KeyError:
                        raise NotImplementedError('unhandled mime type: %s' % mime)

                    setattr(out, attr, data)
                #print(data, end='')
            elif msg_type == 'pyerr':
                out.ename = content['ename']
                out.evalue = content['evalue']
                out.traceback = content['traceback']

                #logging.error('\n'.join(content['traceback']))
            else:
                raise NotImplementedError('unhandled iopub message: %s' % msg_type)
            
            cell['outputs'].append(out)
            if autosave:
                self.save_notebook(autosave)
#.........这里部分代码省略.........