commands.py 文件源码

def run(self, no_ipython, no_bpython):
        """
        Runs the shell.  If no_bpython is False or use_bpython is True, then
        a BPython shell is run (if installed).  Else, if no_ipython is False or
        use_python is True then a IPython shell is run (if installed).
        """

        context = self.get_context()

        if not no_bpython:
            # Try BPython
            try:
                from bpython import embed
                embed(banner=self.banner, locals_=context)
                return
            except ImportError:
                pass

        if not no_ipython:
            # Try IPython
            try:
                try:
                    # 0.10.x
                    from IPython.Shell import IPShellEmbed
                    ipshell = IPShellEmbed(banner=self.banner)
                    ipshell(global_ns=dict(), local_ns=context)
                except ImportError:
                    # 0.12+
                    from IPython import embed
                    embed(banner1=self.banner, user_ns=context)
                return
            except ImportError:
                pass

        # Use basic python shell
        code.interact(self.banner, local=context)