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""" A minimal application using the Qt console-style IPython frontend.
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This is not a complete console app, as subprocess will not be able to receive
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input, there is no real readline support, among other limitations.
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Authors:
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* Evan Patterson
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* Min RK
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* Erik Tollerud
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* Fernando Perez
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"""
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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# stdlib imports
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import json
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import os
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import signal
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import sys
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# System library imports
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from IPython.external.qt import QtGui,QtCore
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from pygments.styles import get_all_styles
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# Local imports
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from IPython.config.application import boolean_flag
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from IPython.core.application import BaseIPythonApplication
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from IPython.core.profiledir import ProfileDir
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from IPython.lib.kernel import tunnel_to_kernel, find_connection_file
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from IPython.frontend.qt.console.frontend_widget import FrontendWidget
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from IPython.frontend.qt.console.ipython_widget import IPythonWidget
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from IPython.frontend.qt.console.rich_ipython_widget import RichIPythonWidget
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from IPython.frontend.qt.console import styles
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from IPython.frontend.qt.kernelmanager import QtKernelManager
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from IPython.utils.path import filefind
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from IPython.utils.py3compat import str_to_bytes
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from IPython.utils.traitlets import (
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Dict, List, Unicode, Int, CaselessStrEnum, CBool, Any
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)
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from IPython.zmq.ipkernel import (
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flags as ipkernel_flags,
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aliases as ipkernel_aliases,
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IPKernelApp
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)
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from IPython.zmq.session import Session, default_secure
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from IPython.zmq.zmqshell import ZMQInteractiveShell
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import application_rc
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#-----------------------------------------------------------------------------
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# Network Constants
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#-----------------------------------------------------------------------------
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from IPython.utils.localinterfaces import LOCALHOST, LOCAL_IPS
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#-----------------------------------------------------------------------------
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# Globals
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#-----------------------------------------------------------------------------
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_examples = """
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ipython qtconsole # start the qtconsole
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ipython qtconsole --pylab=inline # start with pylab in inline plotting mode
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"""
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#-----------------------------------------------------------------------------
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# Classes
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#-----------------------------------------------------------------------------
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class MainWindow(QtGui.QMainWindow):
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#---------------------------------------------------------------------------
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# 'object' interface
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#---------------------------------------------------------------------------
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def __init__(self, app, frontend, existing=False, may_close=True,
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confirm_exit=True):
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""" Create a MainWindow for the specified FrontendWidget.
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The app is passed as an argument to allow for different
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closing behavior depending on whether we are the Kernel's parent.
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If existing is True, then this Console does not own the Kernel.
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If may_close is True, then this Console is permitted to close the kernel
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"""
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super(MainWindow, self).__init__()
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self._app = app
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self.tabWidget = QtGui.QTabWidget(self)
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self.tabWidget.setDocumentMode(True)
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self.tabWidget.setTabsClosable(True)
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self.tabWidget.tabCloseRequested[int].connect(self.closeTab)
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self.setCentralWidget(self.tabWidget)
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self.updateTabBarVisibility()
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def updateTabBarVisibility(self):
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""" update visibility of the tabBar depending of the number of tab
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0 or 1 tab, tabBar hidden
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2+ tabs, tabBar visible
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send a self.close if number of tab ==0
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need to be called explicitely, or be connected to tabInserted/tabRemoved
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"""
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if self.tabWidget.count() <= 1:
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self.tabWidget.tabBar().setVisible(False)
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else:
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self.tabWidget.tabBar().setVisible(True)
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if self.tabWidget.count()==0 :
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self.close()
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@property
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def activeFrontend(self):
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return self.tabWidget.currentWidget()
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def closeTab(self,currentTab):
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""" Called when you need to try to close a tab.
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It takes the number of the tab to be closed as argument, or a referece
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to the wiget insite this tab
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"""
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# let's be sure "tab" and "closing widget are respectivey the index of the tab to close
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# and a reference to the trontend to close
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if type(currentTab) is not int :
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currentTab = self.tabWidget.indexOf(currentTab)
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closing_widget=self.tabWidget.widget(currentTab)
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# when trying to be closed, widget might re-send a request to be closed again, but will
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# be deleted when event will be processed. So need to check that widget still exist and
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# skip if not. One example of this is when 'exit' is send in a slave tab. 'exit' will be
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# re-send by this fonction on the master widget, which ask all slaves widget to exit
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if closing_widget==None:
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return
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#get a list of all wwidget not owning the kernel.
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slaveTabs=self.findSlavesTabs(closing_widget)
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keepkernel = None #Use the prompt by default
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if hasattr(closing_widget,'_keep_kernel_on_exit'): #set by exit magic
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keepkernel = closing_widget._keep_kernel_on_exit
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# If signal sent by exist magic (_keep_kernel_on_exit, exist and not None)
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# we set local slave tabs._hidden to True to avoit prompting for kernel
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# restart when they litt get the signal. and the "forward" the 'exit'
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# to the main win
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if keepkernel is not None:
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for tab in slaveTabs:
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tab._hidden = True
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if closing_widget in slaveTabs :
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try :
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self.findMasterTab(closing_widget).pasteMagic('exit')
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except AttributeError:
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self.log.info("Master already closed or not local, closing only current tab")
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self.tabWidget.removeTab(currentTab)
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return
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kernel_manager = closing_widget.kernel_manager
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if keepkernel is None and not closing_widget._confirm_exit:
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# don't prompt, just terminate the kernel if we own it
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# or leave it alone if we don't
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keepkernel = not closing_widget._existing
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if keepkernel is None: #show prompt
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if kernel_manager and kernel_manager.channels_running:
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title = self.window().windowTitle()
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cancel = QtGui.QMessageBox.Cancel
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okay = QtGui.QMessageBox.Ok
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if closing_widget._may_close:
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msg = "You are closing the tab : "+'"'+self.tabWidget.tabText(currentTab)+'"'
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info = "Would you like to quit the Kernel and all attached Consoles as well?"
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justthis = QtGui.QPushButton("&No, just this Console", self)
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justthis.setShortcut('N')
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closeall = QtGui.QPushButton("&Yes, quit everything", self)
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closeall.setShortcut('Y')
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box = QtGui.QMessageBox(QtGui.QMessageBox.Question,
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title, msg)
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box.setInformativeText(info)
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box.addButton(cancel)
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box.addButton(justthis, QtGui.QMessageBox.NoRole)
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box.addButton(closeall, QtGui.QMessageBox.YesRole)
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box.setDefaultButton(closeall)
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box.setEscapeButton(cancel)
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pixmap = QtGui.QPixmap(':/icon/IPythonConsole.png')
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scaledpixmap = pixmap.scaledToWidth(64,mode=QtCore.Qt.SmoothTransformation)
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box.setIconPixmap(scaledpixmap)
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reply = box.exec_()
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if reply == 1: # close All
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for slave in slaveTabs:
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self.tabWidget.removeTab(self.tabWidget.indexOf(slave))
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closing_widget.pasteMagic("exit")
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self.tabWidget.removeTab(currentTab)
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elif reply == 0: # close Console
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if not closing_widget._existing:
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# Have kernel: don't quit, just close the window
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closing_widget.pasteMagic("exit True")
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else:
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reply = QtGui.QMessageBox.question(self, title,
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"Are you sure you want to close this Console?"+
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"\nThe Kernel and other Consoles will remain active.",
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okay|cancel,
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defaultButton=okay
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)
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if reply == okay:
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self.tabWidget.removeTab(currentTab)
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else:
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event.ignore()
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elif keepkernel: #close console but leave kernel running (no prompt)
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if kernel_manager and kernel_manager.channels_running:
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if not closing_widget._existing:
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# I have the kernel: don't quit, just close the window
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self.tabWidget.removeTab(currentTab)
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else: #close console and kernel (no prompt)
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if kernel_manager and kernel_manager.channels_running:
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for slave in slaveTabs:
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self.tabWidget.removeTab(self.tabWidget.indexOf(slave))
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self.tabWidget.removeTab(currentTab)
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kernel_manager.shutdown_kernel()
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self.updateTabBarVisibility()
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def addTabWithFrontend(self,frontend,name=None):
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""" insert a tab with a given frontend in the tab bar, and give it a name
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"""
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if not name:
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name=str('kernel '+str(self.tabWidget.count()))
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self.tabWidget.addTab(frontend,name)
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self.updateTabBarVisibility()
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frontend.exit_requested.connect(self.closeTab)
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def findMasterTab(self,tab,asList=False):
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"""
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Try to return the frontend that own the kernel attached to the given widget/tab.
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Only find frontend owed by the current application. Selection
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based on port of the kernel, might be inacurate if several kernel
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on different ip use same port number.
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This fonction does the conversion tabNumber/widget if needed.
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Might return None if no master widget (non local kernel)
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Will crash IPython if more than 1 masterWidget
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When asList set to True, always return a list of widget(s) owning
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the kernel. The list might be empty or containing several Widget.
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"""
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#convert from/to int/richIpythonWidget if needed
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if type(tab) == int:
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tab = self.tabWidget.widget(tab)
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km=tab.kernel_manager;
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#build list of all widgets
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widgetList = [self.tabWidget.widget(i) for i in range(self.tabWidget.count())]
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# widget that are candidate to be the owner of the kernel does have all the same port of the curent widget
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# And should have a _may_close attribute
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filtredwidgetList = [ widget for widget in widgetList if
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widget.kernel_manager.shell_address == km.shell_address and
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widget.kernel_manager.sub_address == km.sub_address and
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widget.kernel_manager.stdin_address == km.stdin_address and
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widget.kernel_manager.hb_address == km.hb_address and
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hasattr(widget,'_may_close') ]
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# the master widget is the one that may close the kernel
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masterWidget= [ widget for widget in filtredwidgetList if widget._may_close]
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if asList:
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return masterWidget
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assert(len(masterWidget)<=1 )
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if len(masterWidget)==0:
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return None
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return masterWidget[0]
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def findSlavesTabs(self,tab):
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"""
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Try to return all the frontend that do not own the kernel attached to the given widget/tab.
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|
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Only find frontend owed by the current application. Selection
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based on port of the kernel, might be innacurate if several kernel
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on different ip use same port number.
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|
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This fonction does the conversion tabNumber/widget if needed.
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"""
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#convert from/to int/richIpythonWidget if needed
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if type(tab) == int:
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tab = self.tabWidget.widget(tab)
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km=tab.kernel_manager;
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#build list of all widgets
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widgetList = [self.tabWidget.widget(i) for i in range(self.tabWidget.count())]
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# widget that are candidate not to be the owner of the kernel does have all the same port of the curent widget
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filtredWidgetList = ( widget for widget in widgetList if
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widget.kernel_manager.shell_address == km.shell_address and
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widget.kernel_manager.sub_address == km.sub_address and
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widget.kernel_manager.stdin_address == km.stdin_address and
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widget.kernel_manager.hb_address == km.hb_address)
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# Get a list of all widget owning the same kernel and removed it from
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# the previous cadidate. (better using sets ?)
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masterWidgetlist = self.findMasterTab(tab,asList=True)
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slaveList = [widget for widget in filtredWidgetList if widget not in masterWidgetlist]
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return slaveList
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# MenuBar is always present on Mac Os, so let's populate it with possible
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# action, don't do it on other platform as some user might not want the
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# menu bar, or give them an option to remove it
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def initMenuBar(self):
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#create menu in the order they should appear in the menu bar
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self.fileMenu = self.menuBar().addMenu("File")
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self.editMenu = self.menuBar().addMenu("Edit")
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self.fontMenu = self.menuBar().addMenu("Font")
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self.windowMenu = self.menuBar().addMenu("Window")
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self.magicMenu = self.menuBar().addMenu("Magic")
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# please keep the Help menu in Mac Os even if empty. It will
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# automatically contain a search field to search inside menus and
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# please keep it spelled in English, as long as Qt Doesn't support
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# a QAction.MenuRole like HelpMenuRole otherwise it will loose
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# this search field fonctionnality
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self.helpMenu = self.menuBar().addMenu("Help")
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# sould wrap every line of the following block into a try/except,
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# as we are not sure of instanciating a _frontend which support all
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# theses actions, but there might be a better way
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try:
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self.print_action = QtGui.QAction("Print",
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self,
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shortcut="Ctrl+P",
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triggered=self.print_action_active_frontend)
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self.fileMenu.addAction(self.print_action)
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except AttributeError:
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self.log.error("trying to add unexisting action (print), skipping")
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try:
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self.export_action=QtGui.QAction("Export",
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self,
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shortcut="Ctrl+S",
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|
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triggered=self.export_action_active_frontend
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|
|
)
|
|
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self.fileMenu.addAction(self.export_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (Export), skipping")
|
|
|
|
|
|
try:
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|
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self.select_all_action = QtGui.QAction("Select All",
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|
self,
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|
|
shortcut="Ctrl+A",
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|
|
triggered=self.select_all_active_frontend
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|
|
)
|
|
|
self.fileMenu.addAction(self.select_all_action)
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|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (select all), skipping")
|
|
|
|
|
|
try:
|
|
|
self.undo_action = QtGui.QAction("Undo",
|
|
|
self,
|
|
|
shortcut="Ctrl+Z",
|
|
|
statusTip="Undo last action if possible",
|
|
|
triggered=self.undo_active_frontend
|
|
|
)
|
|
|
self.editMenu.addAction(self.undo_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (undo), skipping")
|
|
|
|
|
|
try:
|
|
|
self.redo_action = QtGui.QAction("Redo",
|
|
|
self,
|
|
|
shortcut="Ctrl+Shift+Z",
|
|
|
statusTip="Redo last action if possible",
|
|
|
triggered=self.redo_active_frontend)
|
|
|
self.editMenu.addAction(self.redo_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (redo), skipping")
|
|
|
|
|
|
try:
|
|
|
self.increase_font_size = QtGui.QAction("Increase Font Size",
|
|
|
self,
|
|
|
shortcut="Ctrl++",
|
|
|
triggered=self.increase_font_size_active_frontend
|
|
|
)
|
|
|
self.fontMenu.addAction(self.increase_font_size)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (increase font size), skipping")
|
|
|
|
|
|
try:
|
|
|
self.decrease_font_size = QtGui.QAction("Decrease Font Size",
|
|
|
self,
|
|
|
shortcut="Ctrl+-",
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|
|
triggered=self.decrease_font_size_active_frontend
|
|
|
)
|
|
|
self.fontMenu.addAction(self.decrease_font_size)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (decrease font size), skipping")
|
|
|
|
|
|
try:
|
|
|
self.reset_font_size = QtGui.QAction("Reset Font Size",
|
|
|
self,
|
|
|
shortcut="Ctrl+0",
|
|
|
triggered=self.reset_font_size_active_frontend
|
|
|
)
|
|
|
self.fontMenu.addAction(self.reset_font_size)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (reset font size), skipping")
|
|
|
|
|
|
try:
|
|
|
self.reset_action = QtGui.QAction("Reset",
|
|
|
self,
|
|
|
statusTip="Clear all varible from workspace",
|
|
|
triggered=self.reset_magic_active_frontend)
|
|
|
self.magicMenu.addAction(self.reset_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (reset), skipping")
|
|
|
|
|
|
try:
|
|
|
self.history_action = QtGui.QAction("History",
|
|
|
self,
|
|
|
statusTip="show command history",
|
|
|
triggered=self.history_magic_active_frontend)
|
|
|
self.magicMenu.addAction(self.history_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (history), skipping")
|
|
|
|
|
|
try:
|
|
|
self.save_action = QtGui.QAction("Export History ",
|
|
|
self,
|
|
|
statusTip="Export History as Python File",
|
|
|
triggered=self.save_magic_active_frontend)
|
|
|
self.magicMenu.addAction(self.save_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (save), skipping")
|
|
|
|
|
|
try:
|
|
|
self.clear_action = QtGui.QAction("Clear",
|
|
|
self,
|
|
|
statusTip="Clear the console",
|
|
|
triggered=self.clear_magic_active_frontend)
|
|
|
self.magicMenu.addAction(self.clear_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action, skipping")
|
|
|
|
|
|
try:
|
|
|
self.who_action = QtGui.QAction("Who",
|
|
|
self,
|
|
|
statusTip="List interactive variable",
|
|
|
triggered=self.who_magic_active_frontend)
|
|
|
self.magicMenu.addAction(self.who_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (who), skipping")
|
|
|
|
|
|
try:
|
|
|
self.who_ls_action = QtGui.QAction("Who ls",
|
|
|
self,
|
|
|
statusTip="Return a list of interactive variable",
|
|
|
triggered=self.who_ls_magic_active_frontend)
|
|
|
self.magicMenu.addAction(self.who_ls_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (who_ls), skipping")
|
|
|
|
|
|
try:
|
|
|
self.whos_action = QtGui.QAction("Whos",
|
|
|
self,
|
|
|
statusTip="List interactive variable with detail",
|
|
|
triggered=self.whos_magic_active_frontend)
|
|
|
self.magicMenu.addAction(self.whos_action)
|
|
|
except AttributeError:
|
|
|
self.log.error("trying to add unexisting action (whos), skipping")
|
|
|
|
|
|
def undo_active_frontend(self):
|
|
|
self.activeFrontend.undo()
|
|
|
|
|
|
def redo_active_frontend(self):
|
|
|
self.activeFrontend.redo()
|
|
|
def reset_magic_active_frontend(self):
|
|
|
self.activeFrontend.reset_magic()
|
|
|
def history_magic_active_frontend(self):
|
|
|
self.activeFrontend.history_magic()
|
|
|
def save_magic_active_frontend(self):
|
|
|
self.activeFrontend.save_magic()
|
|
|
def clear_magic_active_frontend(self):
|
|
|
self.activeFrontend.clear_magic()
|
|
|
def who_magic_active_frontend(self):
|
|
|
self.activeFrontend.who_magic()
|
|
|
def who_ls_magic_active_frontend(self):
|
|
|
self.activeFrontend.who_ls_magic()
|
|
|
def whos_magic_active_frontend(self):
|
|
|
self.activeFrontend.whos_magic()
|
|
|
|
|
|
def print_action_active_frontend(self):
|
|
|
self.activeFrontend.print_action.trigger()
|
|
|
|
|
|
def export_action_active_frontend(self):
|
|
|
self.activeFrontend.export_action.trigger()
|
|
|
|
|
|
def select_all_active_frontend(self):
|
|
|
self.activeFrontend.select_all_action.trigger()
|
|
|
|
|
|
def increase_font_size_active_frontend(self):
|
|
|
self.activeFrontend.increase_font_size.trigger()
|
|
|
def decrease_font_size_active_frontend(self):
|
|
|
self.activeFrontend.decrease_font_size.trigger()
|
|
|
def reset_font_size_active_frontend(self):
|
|
|
self.activeFrontend.reset_font_size.trigger()
|
|
|
#---------------------------------------------------------------------------
|
|
|
# QWidget interface
|
|
|
#---------------------------------------------------------------------------
|
|
|
|
|
|
def closeEvent(self, event):
|
|
|
""" Forward the close event to every tabs contained by the windows
|
|
|
"""
|
|
|
# Do Not loop on the widget count as it change while closing
|
|
|
widgetList=[ self.tabWidget.widget(i) for i in range(self.tabWidget.count())]
|
|
|
for widget in widgetList:
|
|
|
self.closeTab(widget)
|
|
|
event.accept()
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Aliases and Flags
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
flags = dict(ipkernel_flags)
|
|
|
qt_flags = {
|
|
|
'existing' : ({'IPythonQtConsoleApp' : {'existing' : 'kernel*.json'}},
|
|
|
"Connect to an existing kernel. If no argument specified, guess most recent"),
|
|
|
'pure' : ({'IPythonQtConsoleApp' : {'pure' : True}},
|
|
|
"Use a pure Python kernel instead of an IPython kernel."),
|
|
|
'plain' : ({'ConsoleWidget' : {'kind' : 'plain'}},
|
|
|
"Disable rich text support."),
|
|
|
}
|
|
|
qt_flags.update(boolean_flag(
|
|
|
'gui-completion', 'ConsoleWidget.gui_completion',
|
|
|
"use a GUI widget for tab completion",
|
|
|
"use plaintext output for completion"
|
|
|
))
|
|
|
qt_flags.update(boolean_flag(
|
|
|
'confirm-exit', 'IPythonQtConsoleApp.confirm_exit',
|
|
|
"""Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
|
|
|
to force a direct exit without any confirmation.
|
|
|
""",
|
|
|
"""Don't prompt the user when exiting. This will terminate the kernel
|
|
|
if it is owned by the frontend, and leave it alive if it is external.
|
|
|
"""
|
|
|
))
|
|
|
flags.update(qt_flags)
|
|
|
|
|
|
aliases = dict(ipkernel_aliases)
|
|
|
|
|
|
qt_aliases = dict(
|
|
|
hb = 'IPythonQtConsoleApp.hb_port',
|
|
|
shell = 'IPythonQtConsoleApp.shell_port',
|
|
|
iopub = 'IPythonQtConsoleApp.iopub_port',
|
|
|
stdin = 'IPythonQtConsoleApp.stdin_port',
|
|
|
ip = 'IPythonQtConsoleApp.ip',
|
|
|
existing = 'IPythonQtConsoleApp.existing',
|
|
|
f = 'IPythonQtConsoleApp.connection_file',
|
|
|
|
|
|
style = 'IPythonWidget.syntax_style',
|
|
|
stylesheet = 'IPythonQtConsoleApp.stylesheet',
|
|
|
colors = 'ZMQInteractiveShell.colors',
|
|
|
|
|
|
editor = 'IPythonWidget.editor',
|
|
|
paging = 'ConsoleWidget.paging',
|
|
|
ssh = 'IPythonQtConsoleApp.sshserver',
|
|
|
)
|
|
|
aliases.update(qt_aliases)
|
|
|
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# IPythonQtConsole
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
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
|
|
|
for a in argv:
|
|
|
if a.startswith('-') and a.lstrip('-') in qt_flags:
|
|
|
self.kernel_argv.remove(a)
|
|
|
swallow_next = False
|
|
|
for a in argv:
|
|
|
if swallow_next:
|
|
|
self.kernel_argv.remove(a)
|
|
|
swallow_next = False
|
|
|
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
|
|
|
|
|
|
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 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 createTabWithNewFrontend(self):
|
|
|
""" Create new tab attached to new kernel, launched on localhost.
|
|
|
"""
|
|
|
kernel_manager = QtKernelManager(
|
|
|
shell_address=(LOCALHOST,0 ),
|
|
|
sub_address=(LOCALHOST, 0),
|
|
|
stdin_address=(LOCALHOST, 0),
|
|
|
hb_address=(LOCALHOST, 0),
|
|
|
config=self.config
|
|
|
)
|
|
|
# start the kernel
|
|
|
kwargs = dict(ip=LOCALHOST, ipython=not self.pure)
|
|
|
kwargs['extra_arguments'] = self.kernel_argv
|
|
|
kernel_manager.start_kernel(**kwargs)
|
|
|
kernel_manager.start_channels()
|
|
|
local_kernel = (not False) or self.ip in LOCAL_IPS
|
|
|
widget = self.widget_factory(config=self.config,
|
|
|
local_kernel=local_kernel)
|
|
|
widget.kernel_manager = kernel_manager
|
|
|
widget._existing=False;
|
|
|
widget._confirm_exit=True;
|
|
|
widget._may_close=True;
|
|
|
self.window.addTabWithFrontend(widget)
|
|
|
|
|
|
def createTabAttachedToCurrentTabKernel(self):
|
|
|
currentWidget = self.window.tabWidget.currentWidget()
|
|
|
currentWidgetIndex = self.window.tabWidget.indexOf(currentWidget)
|
|
|
currentWidget.kernel_manager = currentWidget.kernel_manager;
|
|
|
currentWidgetName = self.window.tabWidget.tabText(currentWidgetIndex);
|
|
|
kernel_manager = QtKernelManager(
|
|
|
shell_address = currentWidget.kernel_manager.shell_address,
|
|
|
sub_address = currentWidget.kernel_manager.sub_address,
|
|
|
stdin_address = currentWidget.kernel_manager.stdin_address,
|
|
|
hb_address = currentWidget.kernel_manager.hb_address,
|
|
|
config = self.config
|
|
|
)
|
|
|
kernel_manager.start_channels()
|
|
|
local_kernel = (not self.existing) or self.ip in LOCAL_IPS
|
|
|
widget = self.widget_factory(config=self.config,
|
|
|
local_kernel=False)
|
|
|
widget._confirm_exit=True;
|
|
|
widget._may_close=False;
|
|
|
widget.kernel_manager = kernel_manager
|
|
|
self.window.addTabWithFrontend(widget,name=str('('+currentWidgetName+') slave'))
|
|
|
|
|
|
def init_qt_elements(self):
|
|
|
# Create the widget.
|
|
|
self.app = QtGui.QApplication([])
|
|
|
pixmap=QtGui.QPixmap(':/icon/IPythonConsole.png')
|
|
|
icon=QtGui.QIcon(pixmap)
|
|
|
QtGui.QApplication.setWindowIcon(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 = not self.existing;
|
|
|
|
|
|
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.log = self.log
|
|
|
self.window.addTabWithFrontend(self.widget)
|
|
|
self.window.initMenuBar()
|
|
|
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_connection_file()
|
|
|
default_secure(self.config)
|
|
|
self.init_ssh()
|
|
|
self.init_kernel_manager()
|
|
|
self.init_qt_elements()
|
|
|
self.init_colors()
|
|
|
self.init_window_shortcut()
|
|
|
|
|
|
def init_window_shortcut(self):
|
|
|
|
|
|
self.fullScreenAct = QtGui.QAction("Full Screen",
|
|
|
self.window,
|
|
|
shortcut="Ctrl+Meta+Space",
|
|
|
statusTip="Toggle between Fullscreen and Normal Size",
|
|
|
triggered=self.toggleFullScreen)
|
|
|
|
|
|
self.tabAndNewKernelAct =QtGui.QAction("Tab with New kernel",
|
|
|
self.window,
|
|
|
shortcut="Ctrl+T",
|
|
|
triggered=self.createTabWithNewFrontend)
|
|
|
self.window.windowMenu.addAction(self.tabAndNewKernelAct)
|
|
|
self.tabSameKernalAct =QtGui.QAction("Tab with Same kernel",
|
|
|
self.window,
|
|
|
shortcut="Ctrl+Shift+T",
|
|
|
triggered=self.createTabAttachedToCurrentTabKernel)
|
|
|
self.window.windowMenu.addAction(self.tabSameKernalAct)
|
|
|
self.window.windowMenu.addSeparator()
|
|
|
|
|
|
# creating shortcut in menubar only for Mac OS as I don't
|
|
|
# know the shortcut or if the windows manager assign it in
|
|
|
# other platform.
|
|
|
if sys.platform == 'darwin':
|
|
|
self.minimizeAct = QtGui.QAction("Minimize",
|
|
|
self.window,
|
|
|
shortcut="Ctrl+m",
|
|
|
statusTip="Minimize the window/Restore Normal Size",
|
|
|
triggered=self.toggleMinimized)
|
|
|
self.maximizeAct = QtGui.QAction("Maximize",
|
|
|
self.window,
|
|
|
shortcut="Ctrl+Shift+M",
|
|
|
statusTip="Maximize the window/Restore Normal Size",
|
|
|
triggered=self.toggleMaximized)
|
|
|
|
|
|
self.onlineHelpAct = QtGui.QAction("Open Online Help",
|
|
|
self.window,
|
|
|
triggered=self._open_online_help)
|
|
|
|
|
|
self.windowMenu = self.window.windowMenu
|
|
|
self.windowMenu.addAction(self.minimizeAct)
|
|
|
self.windowMenu.addAction(self.maximizeAct)
|
|
|
self.windowMenu.addSeparator()
|
|
|
self.windowMenu.addAction(self.fullScreenAct)
|
|
|
|
|
|
self.window.helpMenu.addAction(self.onlineHelpAct)
|
|
|
else:
|
|
|
# if we don't put it in a menu, we add it to the window so
|
|
|
# that it can still be triggerd by shortcut
|
|
|
self.window.addAction(self.fullScreenAct)
|
|
|
|
|
|
def toggleMinimized(self):
|
|
|
if not self.window.isMinimized():
|
|
|
self.window.showMinimized()
|
|
|
else:
|
|
|
self.window.showNormal()
|
|
|
|
|
|
def _open_online_help(self):
|
|
|
QtGui.QDesktopServices.openUrl(
|
|
|
QtCore.QUrl("http://ipython.org/documentation.html",
|
|
|
QtCore.QUrl.TolerantMode)
|
|
|
)
|
|
|
|
|
|
def toggleMaximized(self):
|
|
|
if not self.window.isMaximized():
|
|
|
self.window.showMaximized()
|
|
|
else:
|
|
|
self.window.showNormal()
|
|
|
|
|
|
# Min/Max imizing while in full screen give a bug
|
|
|
# when going out of full screen, at least on OSX
|
|
|
def toggleFullScreen(self):
|
|
|
if not self.window.isFullScreen():
|
|
|
self.window.showFullScreen()
|
|
|
if sys.platform == 'darwin':
|
|
|
self.maximizeAct.setEnabled(False)
|
|
|
self.minimizeAct.setEnabled(False)
|
|
|
else:
|
|
|
self.window.showNormal()
|
|
|
if sys.platform == 'darwin':
|
|
|
self.maximizeAct.setEnabled(True)
|
|
|
self.minimizeAct.setEnabled(True)
|
|
|
|
|
|
def start(self):
|
|
|
|
|
|
# draw the window
|
|
|
self.window.show()
|
|
|
|
|
|
# Start the application main loop.
|
|
|
self.app.exec_()
|
|
|
|
|
|
#-----------------------------------------------------------------------------
|
|
|
# Main entry point
|
|
|
#-----------------------------------------------------------------------------
|
|
|
|
|
|
def main():
|
|
|
app = IPythonQtConsoleApp()
|
|
|
app.initialize()
|
|
|
app.start()
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
main()
|
|
|
|
