[Tutor] Class: property? function list?

[Run-Sun Pan]

Dear all,

[1] --- "property" in class ???

Is there any "property" in class? For example,

mc = myclass()
mc.hitcount = 100  #<===== user input 
x = mc.hitcount
print x

In the above example there's no validation 
whatsoever. As long as the 100 is passed to
.hitcount, no matter it's a string or even 
other object type, it will be past to x. 

I want to have this .hitcount value validated
before it is returned to other variable x. In
some other object-oriented languages you can
define "properties" for a class for this purpose.
Is there such device in python ?

[2] --- list all variables and functions of
        myclass

Is there a way to get a list of all the "names" 
of all the variable and function names of my
own class ?

Thx in advance.  

pan