Q31. What Are Class Or Static Variables In Python Programming?
In Python, all the objects share common class or static variables. But the instance or non-static variables are altogether different for different objects. The programmin...
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Q32. What Are The Different Methods To Copy An Object In Python?
There are two ways to copy objects in Python. copy.copy() function It makes a copy of the file from source to destination. It'll return a shallow copy of the parameter. c...
Q33. How do you insert an object at a given index in Python?
Let's build a list first. ```python >>> a=[1,2,4] ``` Now, we use the method insert. The first argument is the index at which to insert, the second is the value to insert...
Q34. How many types of objects does Python support?
Immutable objects- Those which do not let us modify their contents. Examples of these will be tuples, booleans, strings, integers, floats, and complexes. Iterations on su...
Q35. Is there a way to remove the last object from a list?
Yes, there is. Try running the following piece of code- ```python >>> list=[1,2,3,4,5 ``` >>> list.pop(–1) 5 ```python >>> list ``` [1, 2, 3, 4]
Q36. What are metaclasses in Python?
A metaclass is the class of a class. A class def ines how an instance of the class (i.e. an object) behaves while a metaclass def ines how a class behaves. A class is an ...
Q37. What is the difference between @staticmethod and @classmethod?
A staticmethod is a method that knows nothing about the class or instance it was called on. It just gets the arguments that were passed, no implicit first argument. It's ...
Q38. How is set() implemented internally? I've seen people say that set objects in Python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have?
Indeed, CPython's sets are implemented as something like dictionaries with dummy values (the keys being the members of the set), with some optimization(s) that exploit th...
Q39. What is the difference between old style and new style classes in Python?
Declaration-wise: New-style classes inherit from object, or from another new-style class. ```python class NewStyleClass(object): pass ``` class AnotherNewStyleClass(NewSt...
Q40. What are first-class functions in JavaScript?
First-class functions means when functions in that language are treated like any other variable. This means that functions can be assigned to variables, passed as argumen...