Помогите с Python!

 functions = {} 
vars = {} 
 
def define_function(name, body): 
    functions[name] = body 
 
def call_function(name, *arguments): 
    if name in functions: 
        return functions[name](*arguments) 
    else: 
        print(f"Error: Function '{name}' is not defined") 
 
def interpret(code): 
    lines = code.strip().splitlines() 
    for line in lines: 
        parts = line.split("(") 
        func_name = parts[0].strip() 
        args_str = parts[1].strip(")").strip() if len(parts) > 1 else "" 
        args = [arg.strip() for arg in args_str.split(",")] if args_str else [] 
        call_function(func_name, *args) 
 
def include_lib(lib): 
    path = f'libs/{lib}.fpy' 
    with open(path) as lib_file: 
        content = lib_file.read() 
    exec(content) 
 
define_function('print_var', lambda a: print(vars.get(a))) 
define_function('print', lambda a: print(a)) 
define_function('set_int', lambda a, b: vars.update({a: int(b)})) 
define_function('set_str', lambda a, b: vars.update({a: b})) 
define_function('set_float', lambda a, b: vars.update({a: float(b)})) 
define_function('set_bool', lambda a, b: vars.update({a: bool(b)})) 
define_function('lib', lambda a: include_lib(a))
#define_function('get', lambda a: return vars[a])
 
while True: 
    code = input(' >>> ') 
    if code == 'exit': 
        exit() 
    interpret(code) 

 set_int(num,52)
print(get(num))