Python Type 'Instance' Convert

Question

I am using a builtin SNMP library to get some data off a server. Now when I get it back it shows up in a list as

.>>> [ObjectName(1.2.6.1.4.1.111.1.4.1.7), Integer(21)]

When I print out x[0] (pretend x is that response^) I see 1.2.6.1.4.1.111.1.4.1.7 and 21 for x[1] but when I do type(x[0]) I get <type 'instance'> .

Now my question is that is there a way to find the type of x[1] and convert it to that? ( x[0] will always be a string but x[1] can be integer, string or float etc.

Is there a way to read that "Integer" (in this case)?

Thanks

Edit:

I dont think I described it clearly. I really done care about x[0] at all, I want to convert the x[1] to what it is without modifying anything from the class that I am getting the SNMP data from. In this example its an int but it can be a float or a string. I am looking for a way to determine what the type of that instance is and then convert it to that

Answer 1

You get <type 'instance'> because the library is using old-style classes . You can get at the class name by using x.__class__ . In your example x[0].__class__.__name__ would be ObjectName .

Answer 2

What an object is and what is shown when you print that object are not necessarily related.

Example:

>>> class Foo:
...     def __str__(self):
...         return 'my personal string'
>>>
>>> f = Foo()
>>> type(f)
<class '__main__.Foo'>
>>> print(f)
my personal string

So if you want to know the type of x[1] you have to call type(x[1]) .

And to try to convert x[0] to the same type, use:

x = [ObjectName(1.2.6.1.4.1.111.1.4.1.7), Integer(21)]
converted = type(x[1])(x[0])

Even though if it'll work depends on what x[0] and x[1] really are.