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Hi.

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Welcome back.

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Today we will discuss at Bluebird the crater delta in the crater airport about bison and property is

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built in the crater used to change our class methods or attributes so that the user of our class doesn't

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need to make any change in zip code example class fruit decaf double underscore and it does it underscore

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self and the name and the color column Zen and instantiation of self to our attributes name self.

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The name equal name self color equal color Zen and self-taught fruit type equal self with good name

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plus has plus a self that color plus color citrus equal fruit lemon and yellow

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print citrus dot name and the brand set as the color and the brand citrus that fruit type.

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We will get from the last to code lemon yellow lemon has yellow color.

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Okay but when we et cetera that name equal orange Brent citrus a good name and brand citrus color we

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will get orange and yellow.

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The name attributes gotta change it but the sentence that was created by fruit type attributes remains

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same as it was said during the initialization of citrus object so we will use python functions to solve

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above problem uh class root column def not an underscore any double underscore or in brackets self and

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the name and in the end the color close bracket column self Doc name equality set with the current equal

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color and we will cancel the third line through type initialization.

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Uh for name and change it to a function called fruit type the fruit type.

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So return serve dot name plus has and self blast self color blast color citrus equal fruit lemon and

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yellow blend citrus.

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The name brand citrus the color brand citrus fruit type method citrus the name Ecuadorians Brent citrus

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with name Brent citrus colors.

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Let's run our code.

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We will get lemon yellow lemon has yellow color orange and yellow.

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This solve it but we have removed the fruit type attributes from the constructor and add a method named

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for type.

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So now in our class there is no attribute to name fruit type and we have a method named fruit type.

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And when the any user use our class will be in trouble as they have to replace all attributes fruit

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type with a function called fruit type.

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Assume we have long code which has lots of lines.

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Then how extremely difficult it will be for the coders how extremely difficult it will be for the coders

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so we will solve this problem using the buy some property the creator as following add property def

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fruit type underscore type self column return sales with name but as the string has been thus self color.

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But as the string colors so there could well be as following plus fruit column the F double underscore

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any double underscore or mean bracket self.

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And name and color close bracket.

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Call them self name equal name self the same full of color equal color and we cancel the third line

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self that through type admirable.

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Dear fruit underscore type I'm in bracket self close bracket column with any self dot name plus string

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of space has its base plus self dot color plus of Amber entities space base color global entities citrus

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equity fruit lemon and dill brand citrus dot name Brent citrus color brands Brent uh citrus dot fruit

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underscore type citrus dot name equal orange with uh all capital citrus dot color equal orange with

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oh small four color Brent citrus the name Brent citrus just color Brent citrus that uh fruit uh underscores

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type

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and when we run our code we will get lemon yellow lemon has yellow color orange audience Orange has

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orange color.

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Thank you for watching.

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See you next lectures by.