Python has a built-in method to list the instances of an object that may consist of many classes. It returns in the form of a table containing tuples instead of the individual classes. Its syntax is as follows.
<isinstance(obj, (class1, class2, ...))>
The above method checks the presence of an object in one of the classes. The built-in types can also have many formats of the same function like <isinstance(obj, str)> or <isinstance(obj, (int, long, float, complex))>.
Also, it’s not recommended to use the built-in classes. Create an user-defined class instead.
We can take the following example to determine the object of a particular class.
Example.
def lookUp(obj):
if isinstance(obj, Mailbox):
print "Look for a mailbox"
elif isinstance(obj, Document):
print "Look for a document"
else:
print "Unidentified object"
