def main():
# Print the ID of the main process
print_process_id()
app = guisupport.get_app_qt4()
# Create an in-process kernel
# >>> print_process_id()
# will print the same process ID as the main process
kernel_manager = QtInProcessKernelManager()
kernel_manager.start_kernel()
kernel = kernel_manager.kernel
kernel.gui = 'qt4'
kernel.shell.push({'foo': 43, 'print_process_id': print_process_id})
kernel_client = kernel_manager.client()
kernel_client.start_channels()
def stop():
kernel_client.stop_channels()
kernel_manager.shutdown_kernel()
app.exit()
control = RichIPythonWidget()
control.kernel_manager = kernel_manager
control.kernel_client = kernel_client
control.exit_requested.connect(stop)
control.show()
guisupport.start_event_loop_qt4(app)
def init_ipython():
"""
Encapsulate Kernel creation logic: Only the kernel client, manager and shell are exposed
This is in order to ensure interoperability between major IPython changes
"""
if ipython_1:
manager = QtInProcessKernelManager()
manager.start_kernel()
manager.kernel.gui = 'qt4'
shell = manager.kernel.shell
shell.run_cell('%pylab inline')
client = manager.client()
client.start_channels()
else:
def event_loop(kernel):
kernel.timer = QTimer()
kernel.timer.timeout.connect(kernel.do_one_iteration)
kernel.timer.start(1000 * kernel._poll_interval)
kernel_app = IPKernelApp.instance()
kernel_app.initialize(['python', '--pylab=qt']) # at this point, print() won’t work anymore
kernel_app.kernel.eventloop = event_loop
connection_file = find_connection_file(kernel_app.connection_file)
manager = QtKernelManager(connection_file=connection_file)
manager.load_connection_file()
manager.start_channels()
kernel_app.start()
client = None
shell = kernel_app.shell
return client, manager, shell
