def default_manager(kernel):
connection_file = find_connection_file(kernel.connection_file)
manager = QtKernelManager(connection_file=connection_file)
manager.load_connection_file()
manager.start_channels()
atexit.register(manager.cleanup_connection_file)
return manager
def _init_kernel_manager(self):
connection_file = find_connection_file(self.app.connection_file)
manager = QtKernelManager(connection_file=connection_file)
manager.load_connection_file()
manager.start_channels()
atexit.register(manager.cleanup_connection_file)
self.kernel_manager = manager
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
sec = self.profile_dir.security_dir
try:
cf = filefind(self.connection_file, ['.', sec])
except IOError:
# file might not exist
if self.connection_file == os.path.basename(self.connection_file):
# just shortname, put it in security dir
cf = os.path.join(sec, self.connection_file)
else:
cf = self.connection_file
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
ip=self.ip,
shell_port=self.shell_port,
iopub_port=self.iopub_port,
stdin_port=self.stdin_port,
hb_port=self.hb_port,
connection_file=cf,
config=self.config,
)
# start the kernel
if not self.existing:
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
elif self.sshserver:
# ssh, write new connection file
self.kernel_manager.write_connection_file()
self.kernel_manager.start_channels()
def _init_kernel_manager(self):
""""""
km = QtKernelManager(connection_file=self._connection_file,
config=self.config)
km.load_connection_file()
km.start_channels(hb=self._heartbeat)
self.kernel_manager = km
atexit.register(self.kernel_manager.cleanup_connection_file)
def __init__(self):
QMainWindow.__init__(self)
self.resize(1000,1000)
self.kernel = QtKernelManager()
self.kernel.start_kernel()
self.kernel.start_channels()
self.console = IPythonWidget()
self.console.kernel_manager = self.kernel
self.setCentralWidget(self.console)
def default_manager(kernel):
""" Return a configured QtKernelManager
:param kernel: An IPKernelApp instance
"""
connection_file = find_connection_file(kernel.connection_file)
manager = QtKernelManager(connection_file=connection_file)
manager.load_connection_file()
manager.start_channels()
atexit.register(manager.cleanup_connection_file)
return manager
class MainWin(QMainWindow):
def __init__(self):
QMainWindow.__init__(self)
self.resize(1000,1000)
self.kernel = QtKernelManager()
self.kernel.start_kernel()
self.kernel.start_channels()
self.console = IPythonWidget()
self.console.kernel_manager = self.kernel
self.setCentralWidget(self.console)
def __init__(self, parent=None):
QDialog.__init__(self, parent)
self.main_window = parent
self.kernel_manager = QtKernelManager()
self.kernel_manager.start_kernel()
self.kernel_manager.start_channels()
self.console = IPythonWidget(local_kernel=LOCALHOST)
self.console.kernel_manager = self.kernel_manager
self.verticalLayout = QVBoxLayout(self)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.verticalLayout)
self.verticalLayout.addWidget(self.console)
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
sec = self.profile_dir.security_dir
try:
cf = filefind(self.connection_file, ['.', sec])
except IOError:
# file might not exist
if self.connection_file == os.path.basename(self.connection_file):
# just shortname, put it in security dir
cf = os.path.join(sec, self.connection_file)
else:
cf = self.connection_file
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
ip=self.ip,
shell_port=self.shell_port,
iopub_port=self.iopub_port,
stdin_port=self.stdin_port,
hb_port=self.hb_port,
connection_file=cf,
config=self.config,
)
# start the kernel
if not self.existing:
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
elif self.sshserver:
# ssh, write new connection file
self.kernel_manager.write_connection_file()
self.kernel_manager.start_channels()
def connect_kernel(self, connection_file, heartbeat=False):
"""
connection_file: str - is the connection file name, for example
'kernel-16098.json'.
heartbeat: bool - workaround, needed for right click/save as
... errors ... i don't know how to
fix this issue. Anyone knows? Anyway it
needs more testing
example1 (standalone):
app = QtGui.QApplication([])
widget = IPythonConsoleQtWidget()
widget.set_default_style(colors='linux')
widget.connect_kernel(
connection_file='some connection file name')
app.exec_()
example2 (IPythonLocalKernelApp):
app = QtGui.QApplication([])
kernelapp = IPythonLocalKernelApp.instance()
kernelapp.initialize()
widget = IPythonConsoleQtWidget()
# Green text, black background ;)
widget.set_default_style(colors='linux')
widget.connect_kernel(
connection_file='kernelapp.get_connection_file())
app.exec_()
"""
km = QtKernelManager(
connection_file=find_connection_file(connection_file),
config=self.config)
km.load_connection_file()
km.start_channels(hb=heartbeat)
self.kernel_manager = km
atexit.register(self.kernel_manager.cleanup_connection_file)
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
shell_address=(self.ip, self.shell_port),
sub_address=(self.ip, self.iopub_port),
stdin_address=(self.ip, self.stdin_port),
hb_address=(self.ip, self.hb_port),
config=self.config
)
# start the kernel
if not self.existing:
kwargs = dict(ip=self.ip, ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
self.kernel_manager.start_channels()
def get_widget(self, droplist_completion=True):
if IPython.__version__ < '0.13':
completion = droplist_completion
else:
completion = 'droplist' if droplist_completion else 'plain'
widget = RichIPythonWidget(gui_completion=completion)
cf = find_connection_file(self.kernel_app.connection_file)
km = QtKernelManager(connection_file=cf, config=widget.config)
km.load_connection_file()
km.start_channels()
widget.kernel_manager = km
atexit.register(km.cleanup_connection_file)
sys.stdout = self._stdout
sys.stderr = self._stderr
sys.displayhook = self._dishook
return widget
def __init__(self, parent=None):
QDockWidget.__init__(self, parent)
self.setObjectName("IPython Console")
self.setWindowTitle(
QCoreApplication.translate("IPython Console", "IPython Console"))
self.setAllowedAreas(Qt.BottomDockWidgetArea)
self.container = QWidget()
self.layout = QVBoxLayout(self.container)
self.kernel_manager = QtKernelManager()
self.kernel_manager.start_kernel()
self.kernel_manager.start_channels()
self.console = IPythonWidget(local_kernel=LOCALHOST)
self.console.kernel_manager = self.kernel_manager
print dir(self.console)
self.layout.addWidget(self.console)
self.setWidget(self.container)
class IPythonConsole(QDockWidget):
def __init__(self, parent=None):
QDockWidget.__init__(self, parent)
self.setObjectName("IPython Console")
self.setWindowTitle(QCoreApplication.translate("IPython Console", "IPython Console"))
self.setAllowedAreas(Qt.BottomDockWidgetArea)
self.container = QWidget()
self.layout = QVBoxLayout(self.container)
self.kernel_manager = QtKernelManager()
self.kernel_manager.start_kernel()
self.kernel_manager.start_channels()
self.console = IPythonWidget(local_kernel=LOCALHOST)
self.console.kernel_manager = self.kernel_manager
print dir(self.console)
self.layout.addWidget(self.console)
self.setWidget(self.container)
class console(QWidget): """A QWidget that serves as a debug window""" def __init__(self, parent=None): QDialog.__init__(self, parent) self.main_window = parent self.kernel_manager = QtKernelManager() self.kernel_manager.start_kernel() self.kernel_manager.start_channels() self.console = IPythonWidget(local_kernel=LOCALHOST) self.console.kernel_manager = self.kernel_manager self.verticalLayout = QVBoxLayout(self) self.verticalLayout.setContentsMargins(0,0,0,0) self.setLayout(self.verticalLayout) self.verticalLayout.addWidget(self.console) def setReadOnly(self, state): """ Dummy function Arguments: state -- dummy argument """ pass def clear(self): """Clears the console""" self.console.reset() def show_prompt(self): """Shows a new prompt""" self.console._show_interpreter_prompt()
def init_kernel_manager():
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
ip = '127.0.0.1'
# Create a KernelManager and start a kernel.
kernel_manager = QtKernelManager(
shell_address=(ip, 0),
sub_address=(ip, 0),
stdin_address=(ip, 0),
hb_address=(ip, 0)
#,
#config=self.config
)
# start the kernel
kwargs = dict(ip='127.0.0.1', ipython=True)
#kwargs['extra_arguments'] = self.kernel_argv
kernel_manager.start_kernel(**kwargs)
kernel_manager.start_channels()
return kernel_manager
def new_frontend_master(self):
""" Create and return new frontend attached to new kernel, launched on localhost.
"""
ip = self.ip if self.ip in LOCAL_IPS else LOCALHOST
kernel_manager = QtKernelManager(
ip=ip,
connection_file=self._new_connection_file(),
config=self.config,
)
# start the kernel
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
kernel_manager.start_kernel(**kwargs)
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config,
local_kernel=True)
widget.kernel_manager = kernel_manager
widget._existing = False
widget._may_close = True
widget._confirm_exit = self.confirm_exit
return widget
def new_frontend_slave(self, current_widget):
"""Create and return a new frontend attached to an existing kernel.
Parameters
----------
current_widget : IPythonWidget
The IPythonWidget whose kernel this frontend is to share
"""
kernel_manager = QtKernelManager(
connection_file=current_widget.kernel_manager.connection_file,
config = self.config,
)
kernel_manager.load_connection_file()
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config,
local_kernel=False)
widget._existing = True
widget._may_close = False
widget._confirm_exit = False
widget.kernel_manager = kernel_manager
return widget
def _init_kernel_manager(self):
km = QtKernelManager(connection_file=self._connection_file,
config=self.config)
km.load_connection_file()
km.start_channels(hb=self._heartbeat)
self.kernel_manager = km
atexit.register(self.kernel_manager.cleanup_connection_file)
def default_manager(kernel):
connection_file = find_connection_file(kernel.connection_file)
manager = QtKernelManager(connection_file=connection_file)
manager.load_connection_file()
manager.start_channels()
atexit.register(manager.cleanup_connection_file)
return manager
def setupKernelManager(self):
kernelManager = None
try:
from IPython.frontend.qt.kernelmanager import QtKernelManager
kernelManager = QtKernelManager()
kernelManager.start_kernel()
kernelManager.start_channels()
if hasattr(kernelManager, "connection_file"):
ipconnection = kernelManager.connection_file
else:
shell_port = kernelManager.shell_address[1]
iopub_port = kernelManager.sub_address[1]
stdin_port = kernelManager.stdin_address[1]
hb_port = kernelManager.hb_address[1]
ipconnection = "--shell={0} --iopub={1} --stdin={2} --hb={3}".format(shell_port, iopub_port, stdin_port, hb_port)
self.supportManager.updateEnvironment({
"PMX_IPYTHON_CONNECTION": ipconnection
})
except ImportError as e:
self.logger.warn("Warning: %s" % e)
kernelManager = None
return kernelManager
def __init__(self, parent=None): QDialog.__init__(self, parent) self.main_window = parent self.kernel_manager = QtKernelManager() self.kernel_manager.start_kernel() self.kernel_manager.start_channels() self.console = IPythonWidget(local_kernel=LOCALHOST) self.console.kernel_manager = self.kernel_manager self.verticalLayout = QVBoxLayout(self) self.verticalLayout.setContentsMargins(0,0,0,0) self.setLayout(self.verticalLayout) self.verticalLayout.addWidget(self.console)
class console(QWidget):
"""A QWidget that serves as a debug window"""
def __init__(self, parent=None):
QDialog.__init__(self, parent)
self.main_window = parent
self.kernel_manager = QtKernelManager()
self.kernel_manager.start_kernel()
self.kernel_manager.start_channels()
self.console = IPythonWidget(local_kernel=LOCALHOST)
self.console.kernel_manager = self.kernel_manager
self.verticalLayout = QVBoxLayout(self)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.setLayout(self.verticalLayout)
self.verticalLayout.addWidget(self.console)
def setReadOnly(self, state):
"""
Dummy function
Arguments:
state -- dummy argument
"""
pass
def clear(self):
"""Clears the console"""
self.console.reset()
def show_prompt(self):
"""Shows a new prompt"""
self.console._show_interpreter_prompt()
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
shell_address=(self.ip, self.shell_port),
sub_address=(self.ip, self.iopub_port),
stdin_address=(self.ip, self.stdin_port),
hb_address=(self.ip, self.hb_port),
config=self.config
)
# start the kernel
if not self.existing:
kwargs = dict(ip=self.ip, ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
self.kernel_manager.start_channels()
def new_frontend_master(self):
""" Create and return new frontend attached to new kernel, launched on localhost.
"""
ip = self.ip if self.ip in LOCAL_IPS else LOCALHOST
kernel_manager = QtKernelManager(
ip=ip,
connection_file=self._new_connection_file(),
config=self.config,
)
# start the kernel
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
kernel_manager.start_kernel(**kwargs)
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config, local_kernel=True)
widget.kernel_manager = kernel_manager
widget._existing = False
widget._may_close = True
widget._confirm_exit = self.confirm_exit
return widget
def new_frontend_slave(self, current_widget):
"""Create and return a new frontend attached to an existing kernel.
Parameters
----------
current_widget : IPythonWidget
The IPythonWidget whose kernel this frontend is to share
"""
kernel_manager = QtKernelManager(
connection_file=current_widget.kernel_manager.connection_file,
config=self.config,
)
kernel_manager.load_connection_file()
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config, local_kernel=False)
widget._existing = True
widget._may_close = False
widget._confirm_exit = False
widget.kernel_manager = kernel_manager
return widget
def connect_kernel(self, connection_file, heartbeat=False):
"""
connection_file: str - is the connection file name, for example 'kernel-16098.json'
heartbeat: bool - workaround, needed for right click/save as ... errors ... i don't know how to
fix this issue. Anyone knows? Anyway it needs more testing
example1 (standalone):
app = QtGui.QApplication([])
widget = IPythonConsoleQtWidget()
widget.set_default_style(colors='linux')
widget.connect_kernel(connection_file='some connection file name')
app.exec_()
example2 (IPythonLocalKernelApp):
app = QtGui.QApplication([])
kernelapp = IPythonLocalKernelApp.instance()
kernelapp.initialize()
widget = IPythonConsoleQtWidget()
# Green text, black background ;)
widget.set_default_style(colors='linux')
widget.connect_kernel(connection_file='kernelapp.get_connection_file())
app.exec_()
"""
km = QtKernelManager(
connection_file=find_connection_file(connection_file),
config=self.config)
km.load_connection_file()
km.start_channels(hb=heartbeat)
self.kernel_manager = km
atexit.register(self.kernel_manager.cleanup_connection_file)
def setupKernelManager(self):
kernelManager = None
try:
from IPython.frontend.qt.kernelmanager import QtKernelManager
kernelManager = QtKernelManager()
kernelManager.start_kernel()
kernelManager.start_channels()
if hasattr(kernelManager, "connection_file"):
ipconnection = kernelManager.connection_file
else:
shell_port = kernelManager.shell_address[1]
iopub_port = kernelManager.sub_address[1]
stdin_port = kernelManager.stdin_address[1]
hb_port = kernelManager.hb_address[1]
ipconnection = "--shell={0} --iopub={1} --stdin={2} --hb={3}".format(
shell_port, iopub_port, stdin_port, hb_port)
self.supportManager.updateEnvironment(
{"PMX_IPYTHON_CONNECTION": ipconnection})
except ImportError as e:
self.logger.warn("Warning: %s" % e)
kernelManager = None
return kernelManager
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_()
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_()
class IPythonQtConsoleApp(BaseIPythonApplication):
name = 'ipython-qtconsole'
default_config_file_name='ipython_config.py'
description = """
The IPython QtConsole.
This launches a Console-style application using Qt. It is not a full
console, in that launched terminal subprocesses will not be able to accept
input.
The QtConsole supports various extra features beyond the Terminal IPython
shell, such as inline plotting with matplotlib, via:
ipython qtconsole --pylab=inline
as well as saving your session as HTML, and printing the output.
"""
examples = _examples
classes = [IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session]
flags = Dict(flags)
aliases = Dict(aliases)
kernel_argv = List(Unicode)
# create requested profiles by default, if they don't exist:
auto_create = CBool(True)
# connection info:
ip = Unicode(LOCALHOST, config=True,
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!"""
)
sshserver = Unicode('', config=True,
help="""The SSH server to use to connect to the kernel.""")
sshkey = Unicode('', config=True,
help="""Path to the ssh key to use for logging in to the ssh server.""")
hb_port = Int(0, config=True,
help="set the heartbeat port [default: random]")
shell_port = Int(0, config=True,
help="set the shell (XREP) port [default: random]")
iopub_port = Int(0, config=True,
help="set the iopub (PUB) port [default: random]")
stdin_port = Int(0, config=True,
help="set the stdin (XREQ) port [default: random]")
existing = CBool(False, config=True,
help="Whether to connect to an already running Kernel.")
stylesheet = Unicode('', config=True,
help="path to a custom CSS stylesheet")
pure = CBool(False, config=True,
help="Use a pure Python kernel instead of an IPython kernel.")
plain = CBool(False, config=True,
help="Use a plaintext widget instead of rich text (plain can't print/save).")
def _pure_changed(self, name, old, new):
kind = 'plain' if self.plain else 'rich'
self.config.ConsoleWidget.kind = kind
if self.pure:
self.widget_factory = FrontendWidget
elif self.plain:
self.widget_factory = IPythonWidget
else:
self.widget_factory = RichIPythonWidget
_plain_changed = _pure_changed
confirm_exit = CBool(True, config=True,
help="""
Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
to force a direct exit without any confirmation.""",
)
# the factory for creating a widget
widget_factory = Any(RichIPythonWidget)
def parse_command_line(self, argv=None):
super(IPythonQtConsoleApp, self).parse_command_line(argv)
if argv is None:
argv = sys.argv[1:]
self.kernel_argv = list(argv) # copy
# kernel should inherit default config file from frontend
self.kernel_argv.append("--KernelApp.parent_appname='%s'"%self.name)
# scrub frontend-specific flags
for a in argv:
if a.startswith('-'):
key = a.lstrip('-').split('=')[0]
if key in qt_flags:
self.kernel_argv.remove(a)
def init_ssh(self):
"""set up ssh tunnels, if needed."""
if not self.sshserver and not self.sshkey:
return
if self.sshkey and not self.sshserver:
self.sshserver = self.ip
self.ip=LOCALHOST
lports = select_random_ports(4)
rports = self.shell_port, self.iopub_port, self.stdin_port, self.hb_port
self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = lports
remote_ip = self.ip
self.ip = LOCALHOST
self.log.info("Forwarding connections to %s via %s"%(remote_ip, self.sshserver))
if tunnel.try_passwordless_ssh(self.sshserver, self.sshkey):
password=False
else:
password = getpass("SSH Password for %s: "%self.sshserver)
for lp,rp in zip(lports, rports):
tunnel.ssh_tunnel(lp, rp, self.sshserver, remote_ip, self.sshkey, password)
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
shell_address=(self.ip, self.shell_port),
sub_address=(self.ip, self.iopub_port),
stdin_address=(self.ip, self.stdin_port),
hb_address=(self.ip, self.hb_port),
config=self.config
)
# start the kernel
if not self.existing:
kwargs = dict(ip=self.ip, ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
self.kernel_manager.start_channels()
def init_qt_elements(self):
# Create the widget.
self.app = QtGui.QApplication([])
local_kernel = (not self.existing) or self.ip in LOCAL_IPS
self.widget = self.widget_factory(config=self.config,
local_kernel=local_kernel)
self.widget.kernel_manager = self.kernel_manager
self.window = MainWindow(self.app, self.widget, self.existing,
may_close=local_kernel,
confirm_exit=self.confirm_exit)
self.window.setWindowTitle('Python' if self.pure else 'IPython')
def init_colors(self):
"""Configure the coloring of the widget"""
# Note: This will be dramatically simplified when colors
# are removed from the backend.
if self.pure:
# only IPythonWidget supports styling
return
# parse the colors arg down to current known labels
try:
colors = self.config.ZMQInteractiveShell.colors
except AttributeError:
colors = None
try:
style = self.config.IPythonWidget.colors
except AttributeError:
style = None
# find the value for colors:
if colors:
colors=colors.lower()
if colors in ('lightbg', 'light'):
colors='lightbg'
elif colors in ('dark', 'linux'):
colors='linux'
else:
colors='nocolor'
elif style:
if style=='bw':
colors='nocolor'
elif styles.dark_style(style):
colors='linux'
else:
colors='lightbg'
else:
colors=None
# Configure the style.
widget = self.widget
if style:
widget.style_sheet = styles.sheet_from_template(style, colors)
widget.syntax_style = style
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 self.stylesheet:
# we got an expicit stylesheet
if os.path.isfile(self.stylesheet):
with open(self.stylesheet) as f:
sheet = f.read()
widget.style_sheet = sheet
widget._style_sheet_changed()
else:
raise IOError("Stylesheet %r not found."%self.stylesheet)
def initialize(self, argv=None):
super(IPythonQtConsoleApp, self).initialize(argv)
self.init_ssh()
self.init_kernel_manager()
self.init_qt_elements()
self.init_colors()
self.init_window_shortcut()
def init_window_shortcut(self):
fullScreenAction = QtGui.QAction('Toggle Full Screen', self.window)
fullScreenAction.setShortcut('Ctrl+Meta+Space')
fullScreenAction.triggered.connect(self.toggleFullScreen)
self.window.addAction(fullScreenAction)
def toggleFullScreen(self):
if not self.window.isFullScreen():
self.window.showFullScreen()
else:
self.window.showNormal()
def start(self):
# draw the window
self.window.show()
# Start the application main loop.
self.app.exec_()
class IPythonQtConsoleApp(BaseIPythonApplication):
name = 'ipython-qtconsole'
default_config_file_name='ipython_config.py'
description = """
The IPython QtConsole.
This launches a Console-style application using Qt. It is not a full
console, in that launched terminal subprocesses will not be able to accept
input.
The QtConsole supports various extra features beyond the Terminal IPython
shell, such as inline plotting with matplotlib, via:
ipython qtconsole --pylab=inline
as well as saving your session as HTML, and printing the output.
"""
examples = _examples
classes = [IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session]
flags = Dict(flags)
aliases = Dict(aliases)
kernel_argv = List(Unicode)
# create requested profiles by default, if they don't exist:
auto_create = CBool(True)
# connection info:
ip = Unicode(LOCALHOST, config=True,
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!"""
)
sshserver = Unicode('', config=True,
help="""The SSH server to use to connect to the kernel.""")
sshkey = Unicode('', config=True,
help="""Path to the ssh key to use for logging in to the ssh server.""")
hb_port = Integer(0, config=True,
help="set the heartbeat port [default: random]")
shell_port = Integer(0, config=True,
help="set the shell (XREP) port [default: random]")
iopub_port = Integer(0, config=True,
help="set the iopub (PUB) port [default: random]")
stdin_port = Integer(0, config=True,
help="set the stdin (XREQ) port [default: random]")
connection_file = Unicode('', config=True,
help="""JSON file in which to store connection info [default: kernel-<pid>.json]
This file will contain the IP, ports, and authentication key needed to connect
clients to this kernel. By default, this file will be created in the security-dir
of the current profile, but can be specified by absolute path.
""")
def _connection_file_default(self):
return 'kernel-%i.json' % os.getpid()
existing = Unicode('', config=True,
help="""Connect to an already running kernel""")
stylesheet = Unicode('', config=True,
help="path to a custom CSS stylesheet")
pure = CBool(False, config=True,
help="Use a pure Python kernel instead of an IPython kernel.")
plain = CBool(False, config=True,
help="Use a plaintext widget instead of rich text (plain can't print/save).")
def _pure_changed(self, name, old, new):
kind = 'plain' if self.plain else 'rich'
self.config.ConsoleWidget.kind = kind
if self.pure:
self.widget_factory = FrontendWidget
elif self.plain:
self.widget_factory = IPythonWidget
else:
self.widget_factory = RichIPythonWidget
_plain_changed = _pure_changed
confirm_exit = CBool(True, config=True,
help="""
Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
to force a direct exit without any confirmation.""",
)
# the factory for creating a widget
widget_factory = Any(RichIPythonWidget)
def parse_command_line(self, argv=None):
super(IPythonQtConsoleApp, self).parse_command_line(argv)
if argv is None:
argv = sys.argv[1:]
self.kernel_argv = list(argv) # copy
# kernel should inherit default config file from frontend
self.kernel_argv.append("--KernelApp.parent_appname='%s'"%self.name)
# Scrub frontend-specific flags
swallow_next = False
was_flag = False
# copy again, in case some aliases have the same name as a flag
# argv = list(self.kernel_argv)
for a in argv:
if swallow_next:
swallow_next = False
# last arg was an alias, remove the next one
# *unless* the last alias has a no-arg flag version, in which
# case, don't swallow the next arg if it's also a flag:
if not (was_flag and a.startswith('-')):
self.kernel_argv.remove(a)
continue
if a.startswith('-'):
split = a.lstrip('-').split('=')
alias = split[0]
if alias in qt_aliases:
self.kernel_argv.remove(a)
if len(split) == 1:
# alias passed with arg via space
swallow_next = True
# could have been a flag that matches an alias, e.g. `existing`
# in which case, we might not swallow the next arg
was_flag = alias in qt_flags
elif alias in qt_flags:
# strip flag, but don't swallow next, as flags don't take args
self.kernel_argv.remove(a)
def init_connection_file(self):
"""find the connection file, and load the info if found.
The current working directory and the current profile's security
directory will be searched for the file if it is not given by
absolute path.
When attempting to connect to an existing kernel and the `--existing`
argument does not match an existing file, it will be interpreted as a
fileglob, and the matching file in the current profile's security dir
with the latest access time will be used.
"""
if self.existing:
try:
cf = find_connection_file(self.existing)
except Exception:
self.log.critical("Could not find existing kernel connection file %s", self.existing)
self.exit(1)
self.log.info("Connecting to existing kernel: %s" % cf)
self.connection_file = cf
# should load_connection_file only be used for existing?
# as it is now, this allows reusing ports if an existing
# file is requested
try:
self.load_connection_file()
except Exception:
self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True)
self.exit(1)
def load_connection_file(self):
"""load ip/port/hmac config from JSON connection file"""
# this is identical to KernelApp.load_connection_file
# perhaps it can be centralized somewhere?
try:
fname = filefind(self.connection_file, ['.', self.profile_dir.security_dir])
except IOError:
self.log.debug("Connection File not found: %s", self.connection_file)
return
self.log.debug(u"Loading connection file %s", fname)
with open(fname) as f:
s = f.read()
cfg = json.loads(s)
if self.ip == LOCALHOST and 'ip' in cfg:
# not overridden by config or cl_args
self.ip = cfg['ip']
for channel in ('hb', 'shell', 'iopub', 'stdin'):
name = channel + '_port'
if getattr(self, name) == 0 and name in cfg:
# not overridden by config or cl_args
setattr(self, name, cfg[name])
if 'key' in cfg:
self.config.Session.key = str_to_bytes(cfg['key'])
def init_ssh(self):
"""set up ssh tunnels, if needed."""
if not self.sshserver and not self.sshkey:
return
if self.sshkey and not self.sshserver:
# specifying just the key implies that we are connecting directly
self.sshserver = self.ip
self.ip = LOCALHOST
# build connection dict for tunnels:
info = dict(ip=self.ip,
shell_port=self.shell_port,
iopub_port=self.iopub_port,
stdin_port=self.stdin_port,
hb_port=self.hb_port
)
self.log.info("Forwarding connections to %s via %s"%(self.ip, self.sshserver))
# tunnels return a new set of ports, which will be on localhost:
self.ip = LOCALHOST
try:
newports = tunnel_to_kernel(info, self.sshserver, self.sshkey)
except:
# even catch KeyboardInterrupt
self.log.error("Could not setup tunnels", exc_info=True)
self.exit(1)
self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = newports
cf = self.connection_file
base,ext = os.path.splitext(cf)
base = os.path.basename(base)
self.connection_file = os.path.basename(base)+'-ssh'+ext
self.log.critical("To connect another client via this tunnel, use:")
self.log.critical("--existing %s" % self.connection_file)
def _new_connection_file(self):
return os.path.join(self.profile_dir.security_dir, 'kernel-%s.json' % uuid.uuid4())
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
sec = self.profile_dir.security_dir
try:
cf = filefind(self.connection_file, ['.', sec])
except IOError:
# file might not exist
if self.connection_file == os.path.basename(self.connection_file):
# just shortname, put it in security dir
cf = os.path.join(sec, self.connection_file)
else:
cf = self.connection_file
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
ip=self.ip,
shell_port=self.shell_port,
iopub_port=self.iopub_port,
stdin_port=self.stdin_port,
hb_port=self.hb_port,
connection_file=cf,
config=self.config,
)
# start the kernel
if not self.existing:
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
elif self.sshserver:
# ssh, write new connection file
self.kernel_manager.write_connection_file()
self.kernel_manager.start_channels()
def new_frontend_master(self):
""" Create and return new frontend attached to new kernel, launched on localhost.
"""
ip = self.ip if self.ip in LOCAL_IPS else LOCALHOST
kernel_manager = QtKernelManager(
ip=ip,
connection_file=self._new_connection_file(),
config=self.config,
)
# start the kernel
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
kernel_manager.start_kernel(**kwargs)
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config,
local_kernel=True)
widget.kernel_manager = kernel_manager
widget._existing = False
widget._may_close = True
widget._confirm_exit = self.confirm_exit
return widget
def new_frontend_slave(self, current_widget):
"""Create and return a new frontend attached to an existing kernel.
Parameters
----------
current_widget : IPythonWidget
The IPythonWidget whose kernel this frontend is to share
"""
kernel_manager = QtKernelManager(
connection_file=current_widget.kernel_manager.connection_file,
config = self.config,
)
kernel_manager.load_connection_file()
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config,
local_kernel=False)
widget._existing = True
widget._may_close = False
widget._confirm_exit = False
widget.kernel_manager = kernel_manager
return widget
def init_qt_elements(self):
# Create the widget.
self.app = QtGui.QApplication([])
base_path = os.path.abspath(os.path.dirname(__file__))
icon_path = os.path.join(base_path, 'resources', 'icon', 'IPythonConsole.svg')
self.app.icon = QtGui.QIcon(icon_path)
QtGui.QApplication.setWindowIcon(self.app.icon)
local_kernel = (not self.existing) or self.ip in LOCAL_IPS
self.widget = self.widget_factory(config=self.config,
local_kernel=local_kernel)
self.widget._existing = self.existing
self.widget._may_close = not self.existing
self.widget._confirm_exit = self.confirm_exit
self.widget.kernel_manager = self.kernel_manager
self.window = MainWindow(self.app,
confirm_exit=self.confirm_exit,
new_frontend_factory=self.new_frontend_master,
slave_frontend_factory=self.new_frontend_slave,
)
self.window.log = self.log
self.window.add_tab_with_frontend(self.widget)
self.window.init_menu_bar()
# we need to populate the 'Magic Menu' once the kernel has answer at
# least once
########################################################################
## TEMPORARILY DISABLED - see #1057 for details, uncomment the next
## line when a proper fix is found:
## self.kernel_manager.shell_channel.first_reply.connect(self.window.pop.trigger)
## END TEMPORARY FIX
########################################################################
self.window.setWindowTitle('Python' if self.pure else 'IPython')
def init_colors(self):
"""Configure the coloring of the widget"""
# Note: This will be dramatically simplified when colors
# are removed from the backend.
if self.pure:
# only IPythonWidget supports styling
return
# parse the colors arg down to current known labels
try:
colors = self.config.ZMQInteractiveShell.colors
except AttributeError:
colors = None
try:
style = self.config.IPythonWidget.syntax_style
except AttributeError:
style = None
# find the value for colors:
if colors:
colors=colors.lower()
if colors in ('lightbg', 'light'):
colors='lightbg'
elif colors in ('dark', 'linux'):
colors='linux'
else:
colors='nocolor'
elif style:
if style=='bw':
colors='nocolor'
elif styles.dark_style(style):
colors='linux'
else:
colors='lightbg'
else:
colors=None
# Configure the style.
widget = self.widget
if style:
widget.style_sheet = styles.sheet_from_template(style, colors)
widget.syntax_style = style
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 self.stylesheet:
# we got an expicit stylesheet
if os.path.isfile(self.stylesheet):
with open(self.stylesheet) as f:
sheet = f.read()
widget.style_sheet = sheet
widget._style_sheet_changed()
else:
raise IOError("Stylesheet %r not found."%self.stylesheet)
@catch_config_error
def initialize(self, argv=None):
super(IPythonQtConsoleApp, self).initialize(argv)
self.init_connection_file()
default_secure(self.config)
self.init_ssh()
self.init_kernel_manager()
self.init_qt_elements()
self.init_colors()
def start(self):
# draw the window
self.window.show()
# Start the application main loop.
self.app.exec_()
def connect_kernel(self, conn, heartbeat=False):
km = QtKernelManager(connection_file=find_connection_file(conn))
km.load_connection_file()
km.start_channels(hb=heartbeat)
self.kernel_manager = km
atexit.register(self.kernel_manager.cleanup_connection_file)
class IPythonQtConsoleApp(BaseIPythonApplication):
name = 'ipython-qtconsole'
default_config_file_name='ipython_config.py'
description = """
The IPython QtConsole.
This launches a Console-style application using Qt. It is not a full
console, in that launched terminal subprocesses will not.
The QtConsole supports various extra features beyond the
"""
classes = [IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session]
flags = Dict(flags)
aliases = Dict(aliases)
kernel_argv = List(Unicode)
# connection info:
ip = Unicode(LOCALHOST, config=True,
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!"""
)
hb_port = Int(0, config=True,
help="set the heartbeat port [default: random]")
shell_port = Int(0, config=True,
help="set the shell (XREP) port [default: random]")
iopub_port = Int(0, config=True,
help="set the iopub (PUB) port [default: random]")
stdin_port = Int(0, config=True,
help="set the stdin (XREQ) port [default: random]")
existing = CBool(False, config=True,
help="Whether to connect to an already running Kernel.")
stylesheet = Unicode('', config=True,
help="path to a custom CSS stylesheet")
pure = CBool(False, config=True,
help="Use a pure Python kernel instead of an IPython kernel.")
plain = CBool(False, config=True,
help="Use a plaintext widget instead of rich text (plain can't print/save).")
def _pure_changed(self, name, old, new):
kind = 'plain' if self.plain else 'rich'
self.config.ConsoleWidget.kind = kind
if self.pure:
self.widget_factory = FrontendWidget
elif self.plain:
self.widget_factory = IPythonWidget
else:
self.widget_factory = RichIPythonWidget
_plain_changed = _pure_changed
confirm_exit = CBool(True, config=True,
help="""
Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
to force a direct exit without any confirmation.""",
)
# the factory for creating a widget
widget_factory = Any(RichIPythonWidget)
def parse_command_line(self, argv=None):
super(IPythonQtConsoleApp, self).parse_command_line(argv)
if argv is None:
argv = sys.argv[1:]
self.kernel_argv = list(argv) # copy
# scrub frontend-specific flags
for a in argv:
if a.startswith('--') and a[2:] in qt_flags:
self.kernel_argv.remove(a)
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
shell_address=(self.ip, self.shell_port),
sub_address=(self.ip, self.iopub_port),
stdin_address=(self.ip, self.stdin_port),
hb_address=(self.ip, self.hb_port),
config=self.config
)
# start the kernel
if not self.existing:
kwargs = dict(ip=self.ip, ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
self.kernel_manager.start_channels()
def init_qt_elements(self):
# Create the widget.
self.app = QtGui.QApplication([])
local_kernel = (not self.existing) or self.ip in LOCAL_IPS
self.widget = self.widget_factory(config=self.config,
local_kernel=local_kernel)
self.widget.kernel_manager = self.kernel_manager
self.window = MainWindow(self.app, self.widget, self.existing,
may_close=local_kernel,
confirm_exit=self.confirm_exit)
self.window.setWindowTitle('Python' if self.pure else 'IPython')
def init_colors(self):
"""Configure the coloring of the widget"""
# Note: This will be dramatically simplified when colors
# are removed from the backend.
if self.pure:
# only IPythonWidget supports styling
return
# parse the colors arg down to current known labels
try:
colors = self.config.ZMQInteractiveShell.colors
except AttributeError:
colors = None
try:
style = self.config.IPythonWidget.colors
except AttributeError:
style = None
# find the value for colors:
if colors:
colors=colors.lower()
if colors in ('lightbg', 'light'):
colors='lightbg'
elif colors in ('dark', 'linux'):
colors='linux'
else:
colors='nocolor'
elif style:
if style=='bw':
colors='nocolor'
elif styles.dark_style(style):
colors='linux'
else:
colors='lightbg'
else:
colors=None
# Configure the style.
widget = self.widget
if style:
widget.style_sheet = styles.sheet_from_template(style, colors)
widget.syntax_style = style
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 self.stylesheet:
# we got an expicit stylesheet
if os.path.isfile(self.stylesheet):
with open(self.stylesheet) as f:
sheet = f.read()
widget.style_sheet = sheet
widget._style_sheet_changed()
else:
raise IOError("Stylesheet %r not found."%self.stylesheet)
def initialize(self, argv=None):
super(IPythonQtConsoleApp, self).initialize(argv)
self.init_kernel_manager()
self.init_qt_elements()
self.init_colors()
def start(self):
# draw the window
self.window.show()
# Start the application main loop.
self.app.exec_()
class IPythonQtConsoleApp(BaseIPythonApplication):
name = 'ipython-qtconsole'
default_config_file_name = 'ipython_config.py'
description = """
The IPython QtConsole.
This launches a Console-style application using Qt. It is not a full
console, in that launched terminal subprocesses will not be able to accept
input.
The QtConsole supports various extra features beyond the Terminal IPython
shell, such as inline plotting with matplotlib, via:
ipython qtconsole --pylab=inline
as well as saving your session as HTML, and printing the output.
"""
examples = _examples
classes = [
IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session
]
flags = Dict(flags)
aliases = Dict(aliases)
kernel_argv = List(Unicode)
# create requested profiles by default, if they don't exist:
auto_create = CBool(True)
# connection info:
ip = Unicode(LOCALHOST,
config=True,
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!""")
sshserver = Unicode(
'',
config=True,
help="""The SSH server to use to connect to the kernel.""")
sshkey = Unicode(
'',
config=True,
help="""Path to the ssh key to use for logging in to the ssh server."""
)
hb_port = Int(0,
config=True,
help="set the heartbeat port [default: random]")
shell_port = Int(0,
config=True,
help="set the shell (XREP) port [default: random]")
iopub_port = Int(0,
config=True,
help="set the iopub (PUB) port [default: random]")
stdin_port = Int(0,
config=True,
help="set the stdin (XREQ) port [default: random]")
connection_file = Unicode(
'',
config=True,
help=
"""JSON file in which to store connection info [default: kernel-<pid>.json]
This file will contain the IP, ports, and authentication key needed to connect
clients to this kernel. By default, this file will be created in the security-dir
of the current profile, but can be specified by absolute path.
""")
def _connection_file_default(self):
return 'kernel-%i.json' % os.getpid()
existing = Unicode('',
config=True,
help="""Connect to an already running kernel""")
stylesheet = Unicode('',
config=True,
help="path to a custom CSS stylesheet")
pure = CBool(False,
config=True,
help="Use a pure Python kernel instead of an IPython kernel.")
plain = CBool(
False,
config=True,
help=
"Use a plaintext widget instead of rich text (plain can't print/save)."
)
def _pure_changed(self, name, old, new):
kind = 'plain' if self.plain else 'rich'
self.config.ConsoleWidget.kind = kind
if self.pure:
self.widget_factory = FrontendWidget
elif self.plain:
self.widget_factory = IPythonWidget
else:
self.widget_factory = RichIPythonWidget
_plain_changed = _pure_changed
confirm_exit = CBool(
True,
config=True,
help="""
Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
to force a direct exit without any confirmation.""",
)
# the factory for creating a widget
widget_factory = Any(RichIPythonWidget)
def parse_command_line(self, argv=None):
super(IPythonQtConsoleApp, self).parse_command_line(argv)
if argv is None:
argv = sys.argv[1:]
self.kernel_argv = list(argv) # copy
# kernel should inherit default config file from frontend
self.kernel_argv.append("--KernelApp.parent_appname='%s'" % self.name)
# Scrub frontend-specific flags
swallow_next = False
was_flag = False
# copy again, in case some aliases have the same name as a flag
# argv = list(self.kernel_argv)
for a in argv:
if swallow_next:
swallow_next = False
# last arg was an alias, remove the next one
# *unless* the last alias has a no-arg flag version, in which
# case, don't swallow the next arg if it's also a flag:
if not (was_flag and a.startswith('-')):
self.kernel_argv.remove(a)
continue
if a.startswith('-'):
split = a.lstrip('-').split('=')
alias = split[0]
if alias in qt_aliases:
self.kernel_argv.remove(a)
if len(split) == 1:
# alias passed with arg via space
swallow_next = True
# could have been a flag that matches an alias, e.g. `existing`
# in which case, we might not swallow the next arg
was_flag = alias in qt_flags
elif alias in qt_flags:
# strip flag, but don't swallow next, as flags don't take args
self.kernel_argv.remove(a)
def init_connection_file(self):
"""find the connection file, and load the info if found.
The current working directory and the current profile's security
directory will be searched for the file if it is not given by
absolute path.
When attempting to connect to an existing kernel and the `--existing`
argument does not match an existing file, it will be interpreted as a
fileglob, and the matching file in the current profile's security dir
with the latest access time will be used.
"""
if self.existing:
try:
cf = find_connection_file(self.existing)
except Exception:
self.log.critical(
"Could not find existing kernel connection file %s",
self.existing)
self.exit(1)
self.log.info("Connecting to existing kernel: %s" % cf)
self.connection_file = cf
# should load_connection_file only be used for existing?
# as it is now, this allows reusing ports if an existing
# file is requested
try:
self.load_connection_file()
except Exception:
self.log.error("Failed to load connection file: %r",
self.connection_file,
exc_info=True)
self.exit(1)
def load_connection_file(self):
"""load ip/port/hmac config from JSON connection file"""
# this is identical to KernelApp.load_connection_file
# perhaps it can be centralized somewhere?
try:
fname = filefind(self.connection_file,
['.', self.profile_dir.security_dir])
except IOError:
self.log.debug("Connection File not found: %s",
self.connection_file)
return
self.log.debug(u"Loading connection file %s", fname)
with open(fname) as f:
s = f.read()
cfg = json.loads(s)
if self.ip == LOCALHOST and 'ip' in cfg:
# not overridden by config or cl_args
self.ip = cfg['ip']
for channel in ('hb', 'shell', 'iopub', 'stdin'):
name = channel + '_port'
if getattr(self, name) == 0 and name in cfg:
# not overridden by config or cl_args
setattr(self, name, cfg[name])
if 'key' in cfg:
self.config.Session.key = str_to_bytes(cfg['key'])
def init_ssh(self):
"""set up ssh tunnels, if needed."""
if not self.sshserver and not self.sshkey:
return
if self.sshkey and not self.sshserver:
# specifying just the key implies that we are connecting directly
self.sshserver = self.ip
self.ip = LOCALHOST
# build connection dict for tunnels:
info = dict(ip=self.ip,
shell_port=self.shell_port,
iopub_port=self.iopub_port,
stdin_port=self.stdin_port,
hb_port=self.hb_port)
self.log.info("Forwarding connections to %s via %s" %
(self.ip, self.sshserver))
# tunnels return a new set of ports, which will be on localhost:
self.ip = LOCALHOST
try:
newports = tunnel_to_kernel(info, self.sshserver, self.sshkey)
except:
# even catch KeyboardInterrupt
self.log.error("Could not setup tunnels", exc_info=True)
self.exit(1)
self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = newports
cf = self.connection_file
base, ext = os.path.splitext(cf)
base = os.path.basename(base)
self.connection_file = os.path.basename(base) + '-ssh' + ext
self.log.critical("To connect another client via this tunnel, use:")
self.log.critical("--existing %s" % self.connection_file)
def _new_connection_file(self):
return os.path.join(self.profile_dir.security_dir,
'kernel-%s.json' % uuid.uuid4())
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
sec = self.profile_dir.security_dir
try:
cf = filefind(self.connection_file, ['.', sec])
except IOError:
# file might not exist
if self.connection_file == os.path.basename(self.connection_file):
# just shortname, put it in security dir
cf = os.path.join(sec, self.connection_file)
else:
cf = self.connection_file
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
ip=self.ip,
shell_port=self.shell_port,
iopub_port=self.iopub_port,
stdin_port=self.stdin_port,
hb_port=self.hb_port,
connection_file=cf,
config=self.config,
)
# start the kernel
if not self.existing:
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
elif self.sshserver:
# ssh, write new connection file
self.kernel_manager.write_connection_file()
self.kernel_manager.start_channels()
def new_frontend_master(self):
""" Create and return new frontend attached to new kernel, launched on localhost.
"""
ip = self.ip if self.ip in LOCAL_IPS else LOCALHOST
kernel_manager = QtKernelManager(
ip=ip,
connection_file=self._new_connection_file(),
config=self.config,
)
# start the kernel
kwargs = dict(ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
kernel_manager.start_kernel(**kwargs)
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config, local_kernel=True)
widget.kernel_manager = kernel_manager
widget._existing = False
widget._may_close = True
widget._confirm_exit = self.confirm_exit
return widget
def new_frontend_slave(self, current_widget):
"""Create and return a new frontend attached to an existing kernel.
Parameters
----------
current_widget : IPythonWidget
The IPythonWidget whose kernel this frontend is to share
"""
kernel_manager = QtKernelManager(
connection_file=current_widget.kernel_manager.connection_file,
config=self.config,
)
kernel_manager.load_connection_file()
kernel_manager.start_channels()
widget = self.widget_factory(config=self.config, local_kernel=False)
widget._existing = True
widget._may_close = False
widget._confirm_exit = False
widget.kernel_manager = kernel_manager
return widget
def init_qt_elements(self):
# Create the widget.
self.app = QtGui.QApplication([])
base_path = os.path.abspath(os.path.dirname(__file__))
icon_path = os.path.join(base_path, 'resources', 'icon',
'IPythonConsole.svg')
self.app.icon = QtGui.QIcon(icon_path)
QtGui.QApplication.setWindowIcon(self.app.icon)
local_kernel = (not self.existing) or self.ip in LOCAL_IPS
self.widget = self.widget_factory(config=self.config,
local_kernel=local_kernel)
self.widget._existing = self.existing
self.widget._may_close = not self.existing
self.widget._confirm_exit = self.confirm_exit
self.widget.kernel_manager = self.kernel_manager
self.window = MainWindow(
self.app,
confirm_exit=self.confirm_exit,
new_frontend_factory=self.new_frontend_master,
slave_frontend_factory=self.new_frontend_slave,
)
self.window.log = self.log
self.window.add_tab_with_frontend(self.widget)
self.window.init_menu_bar()
self.window.setWindowTitle('Python' if self.pure else 'IPython')
def init_colors(self):
"""Configure the coloring of the widget"""
# Note: This will be dramatically simplified when colors
# are removed from the backend.
if self.pure:
# only IPythonWidget supports styling
return
# parse the colors arg down to current known labels
try:
colors = self.config.ZMQInteractiveShell.colors
except AttributeError:
colors = None
try:
style = self.config.IPythonWidget.syntax_style
except AttributeError:
style = None
# find the value for colors:
if colors:
colors = colors.lower()
if colors in ('lightbg', 'light'):
colors = 'lightbg'
elif colors in ('dark', 'linux'):
colors = 'linux'
else:
colors = 'nocolor'
elif style:
if style == 'bw':
colors = 'nocolor'
elif styles.dark_style(style):
colors = 'linux'
else:
colors = 'lightbg'
else:
colors = None
# Configure the style.
widget = self.widget
if style:
widget.style_sheet = styles.sheet_from_template(style, colors)
widget.syntax_style = style
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 self.stylesheet:
# we got an expicit stylesheet
if os.path.isfile(self.stylesheet):
with open(self.stylesheet) as f:
sheet = f.read()
widget.style_sheet = sheet
widget._style_sheet_changed()
else:
raise IOError("Stylesheet %r not found." % self.stylesheet)
@catch_config_error
def initialize(self, argv=None):
super(IPythonQtConsoleApp, self).initialize(argv)
self.init_connection_file()
default_secure(self.config)
self.init_ssh()
self.init_kernel_manager()
self.init_qt_elements()
self.init_colors()
def start(self):
# draw the window
self.window.show()
# Start the application main loop.
self.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].\
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('--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')
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()
local_kernel = (not args.existing) or args.ip in LOCAL_IPS
# Create the widget.
app = QtGui.QApplication([])
if args.pure:
kind = 'rich' if args.rich else 'plain'
widget = FrontendWidget(kind=kind, paging=args.paging, local_kernel=local_kernel)
elif args.rich or args.pylab:
widget = RichIPythonWidget(paging=args.paging, local_kernel=local_kernel)
else:
widget = IPythonWidget(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_()
class IPythonQtConsoleApp(BaseIPythonApplication):
name = 'ipython-qtconsole'
default_config_file_name='ipython_config.py'
description = """
The IPython QtConsole.
This launches a Console-style application using Qt. It is not a full
console, in that launched terminal subprocesses will not be able to accept
input.
The QtConsole supports various extra features beyond the Terminal IPython
shell, such as inline plotting with matplotlib, via:
ipython qtconsole --pylab=inline
as well as saving your session as HTML, and printing the output.
"""
examples = _examples
classes = [IPKernelApp, IPythonWidget, ZMQInteractiveShell, ProfileDir, Session]
flags = Dict(flags)
aliases = Dict(aliases)
kernel_argv = List(Unicode)
# create requested profiles by default, if they don't exist:
auto_create = CBool(True)
# connection info:
ip = Unicode(LOCALHOST, config=True,
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!"""
)
hb_port = Int(0, config=True,
help="set the heartbeat port [default: random]")
shell_port = Int(0, config=True,
help="set the shell (XREP) port [default: random]")
iopub_port = Int(0, config=True,
help="set the iopub (PUB) port [default: random]")
stdin_port = Int(0, config=True,
help="set the stdin (XREQ) port [default: random]")
existing = CBool(False, config=True,
help="Whether to connect to an already running Kernel.")
stylesheet = Unicode('', config=True,
help="path to a custom CSS stylesheet")
pure = CBool(False, config=True,
help="Use a pure Python kernel instead of an IPython kernel.")
plain = CBool(False, config=True,
help="Use a plaintext widget instead of rich text (plain can't print/save).")
def _pure_changed(self, name, old, new):
kind = 'plain' if self.plain else 'rich'
self.config.ConsoleWidget.kind = kind
if self.pure:
self.widget_factory = FrontendWidget
elif self.plain:
self.widget_factory = IPythonWidget
else:
self.widget_factory = RichIPythonWidget
_plain_changed = _pure_changed
confirm_exit = CBool(True, config=True,
help="""
Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
to force a direct exit without any confirmation.""",
)
# the factory for creating a widget
widget_factory = Any(RichIPythonWidget)
def parse_command_line(self, argv=None):
super(IPythonQtConsoleApp, self).parse_command_line(argv)
if argv is None:
argv = sys.argv[1:]
self.kernel_argv = list(argv) # copy
# kernel should inherit default config file from frontend
self.kernel_argv.append("--KernelApp.parent_appname='%s'"%self.name)
# scrub frontend-specific flags
for a in argv:
if a.startswith('-'):
key = a.lstrip('-').split('=')[0]
if key in qt_flags:
self.kernel_argv.remove(a)
def init_kernel_manager(self):
# Don't let Qt or ZMQ swallow KeyboardInterupts.
signal.signal(signal.SIGINT, signal.SIG_DFL)
# Create a KernelManager and start a kernel.
self.kernel_manager = QtKernelManager(
shell_address=(self.ip, self.shell_port),
sub_address=(self.ip, self.iopub_port),
stdin_address=(self.ip, self.stdin_port),
hb_address=(self.ip, self.hb_port),
config=self.config
)
# start the kernel
if not self.existing:
kwargs = dict(ip=self.ip, ipython=not self.pure)
kwargs['extra_arguments'] = self.kernel_argv
self.kernel_manager.start_kernel(**kwargs)
self.kernel_manager.start_channels()
def init_qt_elements(self):
# Create the widget.
self.app = QtGui.QApplication([])
local_kernel = (not self.existing) or self.ip in LOCAL_IPS
self.widget = self.widget_factory(config=self.config,
local_kernel=local_kernel)
self.widget.kernel_manager = self.kernel_manager
self.window = MainWindow(self.app, self.widget, self.existing,
may_close=local_kernel,
confirm_exit=self.confirm_exit)
self.window.setWindowTitle('Python' if self.pure else 'IPython')
def init_colors(self):
"""Configure the coloring of the widget"""
# Note: This will be dramatically simplified when colors
# are removed from the backend.
if self.pure:
# only IPythonWidget supports styling
return
# parse the colors arg down to current known labels
try:
colors = self.config.ZMQInteractiveShell.colors
except AttributeError:
colors = None
try:
style = self.config.IPythonWidget.colors
except AttributeError:
style = None
# find the value for colors:
if colors:
colors=colors.lower()
if colors in ('lightbg', 'light'):
colors='lightbg'
elif colors in ('dark', 'linux'):
colors='linux'
else:
colors='nocolor'
elif style:
if style=='bw':
colors='nocolor'
elif styles.dark_style(style):
colors='linux'
else:
colors='lightbg'
else:
colors=None
# Configure the style.
widget = self.widget
if style:
widget.style_sheet = styles.sheet_from_template(style, colors)
widget.syntax_style = style
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 self.stylesheet:
# we got an expicit stylesheet
if os.path.isfile(self.stylesheet):
with open(self.stylesheet) as f:
sheet = f.read()
widget.style_sheet = sheet
widget._style_sheet_changed()
else:
raise IOError("Stylesheet %r not found."%self.stylesheet)
def initialize(self, argv=None):
super(IPythonQtConsoleApp, self).initialize(argv)
self.init_kernel_manager()
self.init_qt_elements()
self.init_colors()
def start(self):
# draw the window
self.window.show()
# Start the application main loop.
self.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_()