Identifying object types

[microphone_head]

Can anyone out there suggest a better way of using the "type" routine?

I am trying to improve my code by identifying errors. In addition
to using the "try" command I would like to identify variable types.

The idea is to identify the object type of a parameter passed by
a calling routine. I have been using the "type" routine, but believe
there must be a better way.

I am runing Python 3 on my Raspberry Pi2.

def add_option(mnu_caption, txt_colour =None):
    
    if txt_colour is None: # set the menu item to its default colour.
        txt_colour =(255, 255, 255)
    else:
        # verify parameter is valid
        if "tuple" in type(txt_colour):
            if len(txt_colour) !=3: # we got a problem
                pass
            
    print("Obj type of txt_colour =", type(txt_colour), " size =", len(txt_colour))
    

add_option("Run Game")

Output:
Obj type of txt_colour = <class 'tuple'>  size = 3

---

Sorry guys and girls I made a mistake on the previous submission of the code.

Here's the revised copy of the code. Note the keyword "str" when testing the "type".

def add_option(mnu_caption, txt_colour =None):
    
    if txt_colour is None: # set the menu item to its default colour.
        txt_colour =(255, 255, 255)
    else:
        # verify parameter is valid
        if "tuple" in str(type(txt_colour)):
            if len(txt_colour) !=3: # we got a problem
                pass
            
    print("Obj type of parameter txt_colour =", type(txt_colour), " size =", len(txt_colour))
    
txtcol =(255, 255, 255)
add_option("Run Game", txtcol)

Output:
Obj type of parameter txt_colour = <class 'tuple'>  size = 3