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Hi everybody.

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Welcome back.

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In this video we will discuss Object Oriented Programming inheritance.

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Inheritance allows us to create a general or basic class and reuse and extend it to more and other classes

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also.

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It allows us to meet our Python code in more efficient

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inheritance.

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Example let's create superclass and two classes as example fruits class stimulate truth superclass class

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banana subclass of the superclass fruit Apple is subclass of subclass fruits let's augment our job it

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on notebook at the last.

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Could we use in as a constructor video class which is class user data age equals zero name.

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Equal none.

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Let me underscore any double underscore self.

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Name and age.

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Salvador name.

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Equal name.

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That age equal age.

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We want to create another class called for numbers.

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Class.

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Phone number

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JF underscore underscore double underscore.

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It double underscore parentheses serve and the on then self but num equal num.

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We want to use the first class and the second class embattled line.

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We can do that without inheritance so we will use inheritance and avoid reputation and code inheritance.

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It's easy to understand.

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You could think about it as a preventive for reputation and good so class for num when inherit data

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from user data when inherit missiles from plus user data so class phone num user data.

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Jeff and it self and the NUM we will add data to barometer name and age.

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Side num then we will add this line of code Super which is user data not normal underscored in it double

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underscore

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name and age.

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We will assign our users to the second class which inherit missiles of the fittest plus user data user

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underscored one equal

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phone

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num

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Sara

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forty one two three four five six seven eight nine.

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So as a class phone number.

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Name and age.

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From the first class user data.

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Suppose we want to inherit from user data and modifies that inheritance user.

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Suppose we have user to equal.

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David and 50

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wont update that user.

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We will use overriding perverted user to

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equal for no

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David.

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Sexy

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2 3 4 5 6 7 collect shift and enter.

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This will change the age of their user to

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that it's we will get 60.

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So this is called overriding that's all world class or the parent place.

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User 1 we will use 4 numbers class to update their user name.

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There is a name and age that understood one.

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Equal

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Sara

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and 13

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user underscore one equal phone number

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zone

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and nine eight seven six five four three two one.

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For example shift and enter user 1.

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Equal user 1 not name will get John.

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So we update the user 1 a name and age and phone number.

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Let's try to extract User 1 that each will get 15 also for user 1

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not for numbers.

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We will get the phone number nine eight seven six five four three two one.

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Thank you for watching.

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See you next lecture.