Can I call a Python function without brackets, like a shell command. If so, how? [duplicate]

Question

First time posting here, so apologies if I don't follow formatting guidelines or anything.

I'm writing a terminal-like utility tool for, among other things, bulk file editing. My goal was to have every function be three letters ling, a bit like in Assembly. For example, mkd("yeet") makes a directory called yeet.
The basic way it works is as follows: I define a whole bunch of functions, and then I set up a while True loop, that prints the eval() of whatever I type. So far, everything's going pretty well, except for one thing. I want to be able to call functions without having to add the brackets. Any parameters should be added afterwards, like using sys.argscv[1].

Here is a link to the GitHub repo.

Is this possible in Python, if so, how?

Obviously, just typing the name of the function will return me <function pwd at 0x7f6c4d86f6a8> or something along those lines.

Thanks in advance,
Walrus Gumboot

Answer 1

You can use locals or globals depending the scope and and pass the string you get in the arguments:

>>> def foo():
...     print("Hi from foo!")
... 
>>> locals()["foo"]()
Hi from foo!

Where "foo" would be the sys.args[1] from the call to python script.py foo

Or you can define your own dictionary with the available commands, for example:

calc.py

commands = {
    "add" : lambda x, y: x + y,
    "mul" : lambda x, y: x * y,
}

if __name__ == __main__:
    import sys
    _, command, arg1, arg2, *_ = sys.args
    f = commands.get(command, lambda *_: "Invalid command")
    res = f(int(arg1), int(arg2))
    print(res)

Calling python calc.py add 5 10