def console_widget(manager): try: # Ipython v0.13 widget = RichIPythonWidget(gui_completion='droplist') except TraitError: # IPython v0.12 widget = RichIPythonWidget(gui_completion=True) widget.kernel_manager = manager return widget
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 terminal_widget(parent=None, **kwargs): kernel_app = default_kernel_app() manager = default_manager(kernel_app) widget = RichIPythonWidget(parent=parent, gui_completion='droplist') widget.kernel_manager = manager #update namespace kernel_app.shell.user_ns.update(kwargs) kernel_app.shell.user_ns['console'] = widget kernel_app.shell.run_cell( 'print("\\nAvailable variables are everything from pylab, “{}”, and this console as “console”")' .format('”, “'.join(kwargs.keys()))) kernel_app.start() return widget
def main(): app = guisupport.get_app_qt4() # Create a kernel. # # Setting the GUI is not necessary for the normal operation of the kernel, # but it is used for IPython GUI's integration, particularly in pylab. By # default, the inline backend is used, which is safe under all toolkits. # # WARNING: Under no circumstances should another GUI toolkit, like wx, be # used when running a Qt application. This will lead to unexpected behavior, # including segfaults. kernel = InProcessKernel(gui='qt4') # Populate the kernel's namespace. kernel.shell.push({'x': 0, 'y': 1, 'z': 2}) # Create a kernel manager for the frontend and register it with the kernel. km = QtInProcessKernelManager(kernel=kernel) km.start_channels() kernel.frontends.append(km) # Create the Qt console frontend. control = RichIPythonWidget() control.exit_requested.connect(app.quit) control.kernel_manager = km control.show() # Execute some code directly. Note where the output appears. kernel.shell.run_cell('print "x=%r, y=%r, z=%r" % (x,y,z)') # Execute some code through the frontend (once the event loop is # running). Again, note where the output appears. do_later(control.execute, '%who') guisupport.start_event_loop_qt4(app)
def main(): """ Entry point for application. """ # Parse command line arguments. parser = ArgumentParser() kgroup = parser.add_argument_group('kernel options') kgroup.add_argument('-e', '--existing', action='store_true', help='connect to an existing kernel') kgroup.add_argument('--ip', type=str, default=LOCALHOST, help=\ "set the kernel\'s IP address [default localhost].\ If the IP address is something other than localhost, then \ Consoles on other machines will be able to connect\ to the Kernel, so be careful!") kgroup.add_argument('--xreq', type=int, metavar='PORT', default=0, help='set the XREQ channel port [default random]') kgroup.add_argument('--sub', type=int, metavar='PORT', default=0, help='set the SUB channel port [default random]') kgroup.add_argument('--rep', type=int, metavar='PORT', default=0, help='set the REP channel port [default random]') kgroup.add_argument('--hb', type=int, metavar='PORT', default=0, help='set the heartbeat port [default random]') egroup = kgroup.add_mutually_exclusive_group() egroup.add_argument('--pure', action='store_true', help = \ 'use a pure Python kernel instead of an IPython kernel') egroup.add_argument('--pylab', type=str, metavar='GUI', nargs='?', const='auto', help = \ "Pre-load matplotlib and numpy for interactive use. If GUI is not \ given, the GUI backend is matplotlib's, otherwise use one of: \ ['tk', 'gtk', 'qt', 'wx', 'inline'].") wgroup = parser.add_argument_group('widget options') wgroup.add_argument('--paging', type=str, default='inside', choices = ['inside', 'hsplit', 'vsplit', 'none'], help='set the paging style [default inside]') wgroup.add_argument('--plain', action='store_true', help='disable rich text support') wgroup.add_argument('--gui-completion', action='store_true', help='use a GUI widget for tab completion') wgroup.add_argument('--style', type=str, choices = list(get_all_styles()), help='specify a pygments style for by name') wgroup.add_argument('--stylesheet', type=str, help='path to a custom CSS stylesheet') wgroup.add_argument('--colors', type=str, help = \ "Set the color scheme (LightBG,Linux,NoColor). This is guessed \ based on the pygments style if not set.") args = parser.parse_args() # parse the colors arg down to current known labels if args.colors: colors=args.colors.lower() if colors in ('lightbg', 'light'): colors='lightbg' elif colors in ('dark', 'linux'): colors='linux' else: colors='nocolor' elif args.style: if args.style=='bw': colors='nocolor' elif styles.dark_style(args.style): colors='linux' else: colors='lightbg' else: colors=None # Don't let Qt or ZMQ swallow KeyboardInterupts. import signal signal.signal(signal.SIGINT, signal.SIG_DFL) # Create a KernelManager and start a kernel. kernel_manager = QtKernelManager(xreq_address=(args.ip, args.xreq), sub_address=(args.ip, args.sub), rep_address=(args.ip, args.rep), hb_address=(args.ip, args.hb)) if not args.existing: # if not args.ip in LOCAL_IPS+ALL_ALIAS: # raise ValueError("Must bind a local ip, such as: %s"%LOCAL_IPS) kwargs = dict(ip=args.ip) if args.pure: kwargs['ipython']=False else: kwargs['colors']=colors if args.pylab: kwargs['pylab']=args.pylab kernel_manager.start_kernel(**kwargs) kernel_manager.start_channels() # Create the widget. app = QtGui.QApplication([]) local_kernel = (not args.existing) or args.ip in LOCAL_IPS if args.pure: kind = 'plain' if args.plain else 'rich' widget = FrontendWidget(kind=kind, paging=args.paging, local_kernel=local_kernel) elif args.plain: widget = IPythonWidget(paging=args.paging, local_kernel=local_kernel) else: widget = RichIPythonWidget(paging=args.paging, local_kernel=local_kernel) widget.gui_completion = args.gui_completion widget.kernel_manager = kernel_manager # Configure the style. if not args.pure: # only IPythonWidget supports styles if args.style: widget.syntax_style = args.style widget.style_sheet = styles.sheet_from_template(args.style, colors) widget._syntax_style_changed() widget._style_sheet_changed() elif colors: # use a default style widget.set_default_style(colors=colors) else: # this is redundant for now, but allows the widget's # defaults to change widget.set_default_style() if args.stylesheet: # we got an expicit stylesheet if os.path.isfile(args.stylesheet): with open(args.stylesheet) as f: sheet = f.read() widget.style_sheet = sheet widget._style_sheet_changed() else: raise IOError("Stylesheet %r not found."%args.stylesheet) # Create the main window. window = MainWindow(app, widget, args.existing, may_close=local_kernel) window.setWindowTitle('Python' if args.pure else 'IPython') window.show() # Start the application main loop. app.exec_()
def main(): """ Entry point for application. """ # Parse command line arguments. parser = ArgumentParser() kgroup = parser.add_argument_group('kernel options') kgroup.add_argument('-e', '--existing', action='store_true', help='connect to an existing kernel') kgroup.add_argument( '--ip', type=str, default=LOCALHOST, help='set the kernel\'s IP address [default localhost]') kgroup.add_argument('--xreq', type=int, metavar='PORT', default=0, help='set the XREQ channel port [default random]') kgroup.add_argument('--sub', type=int, metavar='PORT', default=0, help='set the SUB channel port [default random]') kgroup.add_argument('--rep', type=int, metavar='PORT', default=0, help='set the REP channel port [default random]') kgroup.add_argument('--hb', type=int, metavar='PORT', default=0, help='set the heartbeat port [default: random]') egroup = kgroup.add_mutually_exclusive_group() egroup.add_argument('--pure', action='store_true', help = \ 'use a pure Python kernel instead of an IPython kernel') egroup.add_argument('--pylab', type=str, metavar='GUI', nargs='?', const='auto', help = \ "Pre-load matplotlib and numpy for interactive use. If GUI is not \ given, the GUI backend is matplotlib's, otherwise use one of: \ ['tk', 'gtk', 'qt', 'wx', 'inline']." ) wgroup = parser.add_argument_group('widget options') wgroup.add_argument('--paging', type=str, default='inside', choices=['inside', 'hsplit', 'vsplit', 'none'], help='set the paging style [default inside]') wgroup.add_argument('--rich', action='store_true', help='enable rich text support') wgroup.add_argument('--gui-completion', action='store_true', help='use a GUI widget for tab completion') args = parser.parse_args() # Don't let Qt or ZMQ swallow KeyboardInterupts. import signal signal.signal(signal.SIGINT, signal.SIG_DFL) # Create a KernelManager and start a kernel. kernel_manager = QtKernelManager(xreq_address=(args.ip, args.xreq), sub_address=(args.ip, args.sub), rep_address=(args.ip, args.rep), hb_address=(args.ip, args.hb)) if args.ip == LOCALHOST and not args.existing: if args.pure: kernel_manager.start_kernel(ipython=False) elif args.pylab: kernel_manager.start_kernel(pylab=args.pylab) else: kernel_manager.start_kernel() kernel_manager.start_channels() # Create the widget. app = QtGui.QApplication([]) if args.pure: kind = 'rich' if args.rich else 'plain' widget = FrontendWidget(kind=kind, paging=args.paging) elif args.rich or args.pylab: widget = RichIPythonWidget(paging=args.paging) else: widget = IPythonWidget(paging=args.paging) widget.gui_completion = args.gui_completion widget.kernel_manager = kernel_manager # Create the main window. window = MainWindow(app, widget, args.existing) window.setWindowTitle('Python' if args.pure else 'IPython') window.show() # Start the application main loop. app.exec_()