def _IPKernelApp_start(self):
nonlocal ipy_stdout, ipy_stderr
if self.poller is not None:
self.poller.start()
self.kernel.start()
# set up a timer to periodically poll the zmq ioloop
self.loop = ioloop.IOLoop.current()
def poll_ioloop():
try:
# Use the IPython stdout/stderr while running the kernel
with PushStdout(ipy_stdout, ipy_stderr):
# If the kernel has been closed then run the event loop until it gets to the
# stop event added by IPKernelApp.shutdown_request
if self.kernel.shell.exit_now:
_log.debug("IPython kernel stopping (%s)" %
self.connection_file)
self.loop.start()
sys._ipython_kernel_running = False
return
# otherwise call the event loop but stop immediately if there are no pending events
self.loop.add_timeout(
0, lambda: self.loop.add_callback(self.loop.stop))
self.loop.start()
except:
_log.error("Error polling Jupyter loop", exc_info=True)
schedule_call(poll_ioloop, delay=0.1)
sys._ipython_kernel_running = True
schedule_call(poll_ioloop, delay=0.1)
def OpenJupyterNotebook(path=None):
"""
Open a Jupyter notebook in a new task pane.
:param path: Path to Jupyter notebook file or directory.
:return: True on success
"""
try:
if path is not None:
if not os.path.isabs(path):
# Try and get the absolute path relative to the active workbook
xl = xl_app(com_package="win32com")
wb = xl.ActiveWorkbook
if wb is not None and wb.FullName and os.path.exists(
wb.FullName):
abs_path = os.path.join(os.path.dirname(wb.FullName), path)
if os.path.exists(abs_path):
path = abs_path
if not os.path.exists(path):
raise RuntimeError(f"Path '{path}' not found.")
initial_path = None
notebook_path = None
if path is not None:
if os.path.isdir(path):
initial_path = path
elif os.path.isfile(path):
notebook_path = path
else:
raise RuntimeError(f"Something is wrong with {path}")
# Use schedule_call to actually open the notebook since if this was called
# from a Workbook.Open macro Excel may not yet be ready to open a CTP.
schedule_call(
partial(open_jupyter_notebook,
initial_path=initial_path,
notebook_path=notebook_path))
return True
except Exception as e:
xlcAlert(f"Error opening Jupyter notebook: {e}")
raise
