179_14_decorator_with_arguments.py

from functools import wraps
def only_data_type_allow(data_type):
    def decorator(function):
        @wraps(function)
        def wrapper(*args,**kwargs):
            if all([type(arg)==data_type for arg in args]):
                return function(*args,**kwargs)
            print("Invalid Arguments")
        return wrapper
    return decorator

@only_data_type_allow(str)
def string_join(*args):
    string = ""
    for i in args:
        string += i 
    return string

print(string_join('manish', " kumar", ' sahu'))