Python Files-4 Programs using While& For loop |Reading first three lines or Second last Line of Fil

Rajeev Gupta Channel=RK1470,
In this video, I have explained use of While & For loop in file,
& How to read only first three lines, How to read second last line of File
how to read only 5 characters using readline()

CHAPTER-5 (File Handling)
Part-1
What is File, What is file I/O, What are Text/Binary Files, All files Modes, Examples of File Operation
https://youtu.be/1mHm1ilfBGM
Part-2
In this video, I have deeply explained what are console oriented input-output, How to send data/characters from one file to other file. How to send data/characters from file to console.
https://youtu.be/3CJaqpzXBnM
Part-3
In this video, I have explained how to copy line/lines from one file to other file. How to copy line/lines from file to console.
https://youtu.be/rKNBVNsOmi0

CHAPTER-3 (Working with Functions)
Inbuilt functions,Functions defined in modules User Defined function- 4 methods, How to make own module, Actual& Formal parameter, if __name__== "__main__", Local & Global variable and output,
Returning Multiple values,How to pass Mutable & Non Mutable objects to function, How to make Package, Library, Module Aliasing

Part-1- https://youtu.be/cSBH6eJ--f0
Part-2- https://youtu.be/C2ByFwnC5ug
Part-3- https://youtu.be/dNFcr-odrEs
Part-4- https://youtu.be/l9uccLZdhTQ
Part-5- https://youtu.be/NXKe4d0Cj-k
Part-6- https://youtu.be/YaF1C_P9Eo8
Part-7- https://youtu.be/DnvDB8-QsBw
Part-8- https://youtu.be/NS6uNY5GoAw
Part-9(a)-https://youtu.be/rx5Tbs1r5KA (Finding outputs of random())
Part-9(b)- https://youtu.be/OWJR0jYVOnU (Finding outputs of random())


CHAPTER-7 (Algorithmic Efficiency)
Big-O, Best, Worst, Average Case Time Complexity, O(logN), O(NlogN), O(2^N), O(vN ),O(N^3), Binary&Linear Search, Fib&Prime No, Bubble, Insertion, Selection sort

Part-1- https://youtu.be/VzjtNPg6tgI
Part-2- https://youtu.be/vrnzAj9jnoE
Part-3- https://youtu.be/xSIkW9NAOwc


CHAPTER-6(RECURSION)
Python- Recursion and its types (Hindi), Recursive Functions,
Programs on Recursion - Prime No, Fibonacci Series, Binary Search
Reverse of String, Even and Odd number in Reverse order,
sum of square of odd no.Outputs of Programs, Base and Recursive case,

PART-1- https://youtu.be/pHXoqDcA1h8
PART-2- https://youtu.be/v4w0s_g-ZMQ
PART-3- https://youtu.be/LZwgEV2HnDQ
PART-4- https://youtu.be/Zi6quuwY2HM
PART-5- https://youtu.be/fK6RgII4-bQ