Q221. How To Assign Values For The Class Attributes At Runtime?
We can specify the values for the attributes at runtime. We need to add an init method and pass input to object constructor. See the following example demonstrating this....
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Q222. What Is Inheritance In Python Programming?
Inheritance is an OOP mechanism which allows an object to access its parent class features. It carries forward the base class functionality to the child. Python Interview...
Q223. What Is Composition In Python?
The composition is also a type of inheritance in Python. It intends to inherit from the base class but a little differently, i.e., by using an instance variable of the ba...
Q224. What Are Errors And Exceptions In Python Programs?
Errors are coding issues in a program which may cause it to exit abnormally. On the contrary, exceptions happen due to the occurrence of an external event which interrupt...
Q225. How Do You Handle Exceptions With Try/Except/Finally In Python?
Python lay down Try, Except, Finally constructs to handle errors as well as Exceptions. We enclose the unsafe code indented under the try block. And we can keep our fall-...
Q226. How Do You Raise Exceptions For A Predefined Condition In Python?
We can raise an exception based on some condition. For example, if we want the user to enter only odd numbers, else will raise an exception. # Example - Raise an exceptio...
Q227. What Is The Difference Between An Iterator And Iterable?
The collection type like a list, tuple, dictionary, and set are all iterable objects whereas they are also iterable containers which return an iterator while traversing. ...
Q228. What Are Python Generators?
A Generator is a kind of function which lets us specify a function that acts like an iterator and hence can get used in a "for" loop. In a generator function, the yield k...
Q229. What Are Closures In Python?
Python closures are function objects return ed by another function. We use them to eliminate code redundancy. In the example below, we've written a simple closure for mul...
Q230. What Are Decorators In Python?
Python decorator gives us the ability to add new behavior to the given objects dynamically. In the example below, we've written a simple example to display a message pre ...