sample.py

#!/usr/bin/env python
from friendlyshell.basic_shell import BasicShell


class MySubShell(BasicShell):
    def __init__(self, *args, **kwargs):
        super(MySubShell, self).__init__(*args, **kwargs)
        self.prompt = "(child)> "

    def do_sub_op(self):
        print("Child sub op1")


class MyShell (BasicShell):

    def __init__(self, *args, **kwargs):
        super(MyShell, self).__init__(*args, **kwargs)
        self.banner_text = "My Sample Shell v1.0"

    def complete_parent_op(self, params, index):
        # print("In completer...")
        self.debug(str(params))
        self.debug(str(index))
        options = [
            "Hello",
            "Howdy",
            "HellNo",
            "World",
            "FuBar",
            "Johnathan",
            "JohnDoe",
        ]

        return [i for i in options if i.startswith(params[index])]

    def do_parent_op(self):
        print("Parent op1")

    def do_subshell(self):
        tmp = MySubShell()
        return self.run_subshell(tmp)


if __name__ == "__main__":
    obj = MyShell()

    # obj.run()
    # exit()
    with open("test.fsh", "r") as fh:
        obj.run(input_stream=fh)