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_()
