Class TerminalIPythonApp

IPython/terminal/ipapp.py:187–330

class TerminalIPythonApp(BaseIPythonApplication, InteractiveShellApp):
    name = "ipython"
    description = usage.cl_usage
    crash_handler_class = IPAppCrashHandler  # typing: ignore[assignment]
    examples = _examples

    flags = flags
    aliases = aliases
    classes = List()

    interactive_shell_class = Type(
        klass=object,   # use default_value otherwise which only allow subclasses.
        default_value=TerminalInteractiveShell,
        help="Class to use to instantiate the TerminalInteractiveShell object. Useful for custom Frontends"
    ).tag(config=True)

    @default('classes')
    def _classes_default(self):
        """This has to be in a method, for TerminalIPythonApp to be available."""
        return [
            InteractiveShellApp,  # ShellApp comes before TerminalApp, because
            self.__class__,      # it will also affect subclasses (e.g. QtConsole)
            TerminalInteractiveShell,
            HistoryManager,
            MagicsManager,
            ProfileDir,
            PlainTextFormatter,
            IPCompleter,
            ScriptMagics,
            LoggingMagics,
            StoreMagics,
        ]

    subcommands = dict(
        profile = ("IPython.core.profileapp.ProfileApp",
            "Create and manage IPython profiles."
        ),
        kernel = ("ipykernel.kernelapp.IPKernelApp",
            "Start a kernel without an attached frontend."
        ),
        locate=('IPython.terminal.ipapp.LocateIPythonApp',
            LocateIPythonApp.description
        ),
        history=('IPython.core.historyapp.HistoryApp',
            "Manage the IPython history database."
        ),
    )

    # *do* autocreate requested profile, but don't create the config file.
    auto_create = Bool(True).tag(config=True)

    # configurables
    quick = Bool(False,
        help="""Start IPython quickly by skipping the loading of config files."""
    ).tag(config=True)
    @observe('quick')
    def _quick_changed(self, change):
        if change['new']: