What's the canonical way to check for type in Python?

Question

How can I check a given object is of a given type? How can I check that a object inherit a given type? 

There's an object o. How can I check that it's a string?

Answer 1

There's no need to check it in Python, but if you still want to check it isinstance(o, str) it will return true if o  is a string or inherits from str.

type(o) is str will return true  only if o is str , or false  if o inherits a type str.

Hope this helps. 

Answer 2

To check if o is an instance of str or any subclass of str, use isinstance (this would be the "canonical" way):

if isinstance(o, str):

You can use the following video tutorials to clear all your doubts:-

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