Scope of a Variable in Python | LEGB Rule in Python | Class 12 Computer Science with Python

Scope of a Variable in Python | LEGB Rule in Python | Class 12 Computer Science with Python
In this video you will understand the following topics:
Scope of a variable,
Scope and Lifetime of a variable,
global keyword,
nonlocal keyword
What is LEGB rule in Python
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random module
• random module
Mathematical and String Functions
• Playlist
Using Python Libraries:
• Using Python Libraries
Data Structures: Stack and Queue
• Data Structures : Line...
File Handling:
• File Handling
Recursion
• Recursion
Idea of Algorithmic Efficiency
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Interface Python with MYSQL:
• Interface Python with ...
MYSQL
• MYSQL
Computer Networks:
• Computer Networks
Programming Corner:
• Programming Corner
Output Based Questions:
• Output Based Questions
Boolean Algebra
• Boolean Algebra
Basics of Python
• Python Introduction, F...
Flow of Control
• Flow of Control (Condi...
String Manipulation
• String Manipulation
List Manipulation
• List Manipulation
Dictionaries
• Dictionaries in Python
Sorting
• Playlist

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[@Sumit_Sharma69]

thank you madam ji your vedio helps me a lot one day before exam for quick revision

[@SwatiChawlaofficial]

It's my pleasure Best wishes for your exam

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[@SwatiChawlaofficial]

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love u mam, lovely teaching fell in love with cs

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mam can you tell the best way to complete class 12 syllabus at earliest

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[@aryendrasinghparihar6940]

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Thanku

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Mam aapke dwara diye gaye example theory ke baad concept ko strong bana dete hai aur fir main unhe nahin bhulta . Thank you🙏🙏

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[@bhavanasharma5713]

Ma'am aap itna achcha padha rahi hai ki Vishwas hi nahin ho raha hai ki koi cs bhi acha pada sakta hai mere school ke teacher se jyada achcha to aap padha rahi hai mam thank you very much maja a Gaya itne acche se samajh mein aaya ki mast lag raha hai chapter Thank u mam

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Mm crystal clear ❤️

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[@knowledgeseeker837]

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Me too

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[@Akshitaaa-qh4wq]

24:40 y=a kaise krdia hmne...y bhi to global variable h

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[@basic6299]

33 minute ke bad dimag kuch kam karna band sa ho gya tha. Last me legb to samjh gya. Like y = a ko accept kar rha hai, par a = a + x ko nahi accept krta. Usme thora dimag chakra gya mam. Itni full detail me sayad hi kisi channel pe mile, isiliye i joined this channel. 👍

[@SwatiChawlaofficial]

Thanku so much.. Like y = a ko accept kar rha hai, par a = a + x ko nahi accept krta. simply means...if the function wants to change the value of a global variable...it must use global keyword.. Try to watch it once more to clear the concepts..

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[@dhirendrasiritacademy7182]

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[@manishdutta9488]

Mam in 26:18 y's value is also change in local scope without calling global y but it doesn't show error when we do the same with a it shows error. Please 🥺 reply mam

[@SwatiChawlaofficial]

Because here we are first using the variable a (y=a) before assigning the value (a=2) in local scope. Whereas in case of variable y , we are first assigning the value then using it. In short, we can't use any variable before assigning the value. Hope it's clear now..🙂 I suggest you after reading this comment, please watch the explanation in the video again.. Then it will be crystal clear 😀

[@manishdutta9488]

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[@janghupriyanshu]

Superb way of Explaining ma'am But ma'am abhi jo aap new videos bna rhi hai unki alag se playlist bna dijiye..

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Thanku... The topics..for which i have uploaded new videos...for that..old videos, I have deleted now..

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Most welcome

[@manalabdulkarimsandilkar4388]

@@SwatiChawlaofficial mam agr more than 2 function hai block mai toh fir us case mai bhi local ko preferance manaige?

[@computerworld2861]

How can we use... Global and local variables with same name at same time.. as both are part of any expression...where both are required?

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mam i have a doubt how b=20 global scope? thanks a Lot foe your beautiful teaching mam

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Glad..u find the lectures helpful.. Please share it with others also.. All PGT CS doesn't mean..they are in KV 🙂

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22:50 Ma'am, in return statement ,don't we have to write " return a " ? Kindly clear my doubt ma'am 🙏

[@SwatiChawlaofficial]

If we don't specify any variable or expression with return statement, , by default it returns None... Further, the returned value is not stored in a variable also... According to question, it's not required...

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@@SwatiChawlaofficial Ok ma'am, thank you so much..

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[@SwatiChawlaofficial]

Not at all

[@omkarwagh7403]

mam at 25.56 you told we cant change the value of global variable with using global function but how can we assign the value of a in y then it is changing the value of global variable

[@SwatiChawlaofficial]

Plz watch it again.. A function can't change the value of a global variable without using global keyword.. If a function wants to change the value of a global variable, it must use global keyword

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miss can u provide notes of the lectures for doing revision ?

[@SwatiChawlaofficial]

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[@Aditya-qx7nf]

Ma'am you haven't made any slide for nonlocal variable ? Can you reply the exact defination ?

[@SwatiChawlaofficial]

The nonlocal keyword is used to work with variables inside nested functions, where the variable should not belong to the inner function. Use the keyword nonlocal to declare that the variable is not local. Global statement permits modification of global variable in local scope and nonlocal statement permits modification of enclosing scope variable in local scope.

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For 2020-21 or 2021- 22 batch?

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@@SwatiChawlaofficial mam I am in 2020-21

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Most welcome 😊

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crystal clr mam

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That's great.... Thanku...

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Mam where can I get this ppt?

[@SwatiChawlaofficial]

Sure..You can enjoy special perks by joining the membership. Have a look at this. kzbin.info/door/2vH9rqGh-fJELF8acGfBdwjoin

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Maa'm are you providing class 12th computer batch also please 🙏 tell me ma'am

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Currently teaching on KZbin only

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Hey , Mam , I am also going to teach Cs from may😅

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Great 👍 All the best

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21:52 why was the answer 20?

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[@SwatiChawlaofficial]

for recording , m using Screencast o - matic....and obs for live sessions..

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@@SwatiChawlaofficial thank u

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Sure... Thanks for your valuable suggestion

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🔥 mam...abhi ye chapter thoda rahata h na....??......nice explanation 😇

[@SwatiChawlaofficial]

Thanku.. Yes..one last topic.. mutability and immutability of data object.. That will be uploaded.. very soon..

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revision op

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Just started 😅

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17:22

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all the concepts are c;ear only reply my previous comment

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mam yu should give pdf also

[@SwatiChawlaofficial]

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[@asif9857]

Ma'am plz provide notes

[@SwatiChawlaofficial]

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op

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Thank you so much ma'am 😃

[@SwatiChawlaofficial]

Most welcome 😊