Slicing (List, Tuple And String) In Python
Dear Sciaku Learner you are not logged in or not enrolled in this course.Please Click on login or enroll now button.
If you have any query feel free to chat us!
Happy Coding! Happy Learning!
Lecture 79:- Slicing (List, Tuple And String) In Python
Slicing is a powerful feature in Python that allows you to extract a portion (a subsequence) of a list, tuple, or string based on its index positions. Slicing uses the colon
:as the separator, and the syntax for slicing issequence[start:stop:step], where:
sequence: The list, tuple, or string from which you want to extract the subsequence.start: The index of the first element to include in the subsequence (inclusive). If not specified, the default is the beginning of the sequence (index 0).stop: The index of the first element to exclude from the subsequence (exclusive). The slice stops before this index. If not specified, the default is the end of the sequence.step: The step size used for the slicing. It determines how many elements to skip between each included element. If not specified, the default step size is 1.Let's see examples of slicing for lists, tuples, and strings:
- Slicing a List:
pythonCopy code
my_list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] # Extract elements from index 2 to index 6 (exclusive) sub_list = my_list[2:6] print(sub_list) # Output: [3, 4, 5, 6] # Extract every second element every_second = my_list[::2] print(every_second) # Output: [1, 3, 5, 7, 9] # Reverse the list reversed_list = my_list[::-1] print(reversed_list) # Output: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1]
- Slicing a Tuple:
pythonCopy code
my_tuple = (10, 20, 30, 40, 50) # Extract elements from index 1 to index 4 (exclusive) sub_tuple = my_tuple[1:4] print(sub_tuple) # Output: (20, 30, 40) # Extract every second element every_second = my_tuple[::2] print(every_second) # Output: (10, 30, 50) # Reverse the tuple reversed_tuple = my_tuple[::-1] print(reversed_tuple) # Output: (50, 40, 30, 20, 10)
- Slicing a String:
pythonCopy code
my_string = "Hello, World!" # Extract characters from index 2 to index 8 (exclusive) sub_string = my_string[2:8] print(sub_string) # Output: "llo, W" # Extract every second character every_second = my_string[::2] print(every_second) # Output: "Hlo ol!" # Reverse the string reversed_string = my_string[::-1] print(reversed_string) # Output: "!dlroW ,olleH"Slicing is a versatile feature in Python that allows you to manipulate sequences easily and efficiently. It's a fundamental technique used frequently in data processing and manipulation tasks.
- 1. Background Part 1 (IO Devices, CPU and Memory) In Python
- 2. Background Part 2 (Computer Organization & Operating System) In Python
- 3. Why Do We Need Programming Languages in Python
- 4. Python Introduction in Python
- 5. Python Standard and Implementations in Python
- 6. How Python Programs are Executed
- 7. Python Programming Terminology
- 8. Python Installation and First Program
- 9. Comments in Python
- 1. Arithmetic Operators in Python
- 2. Logical Operators in Python
- 3. Identity Comparison Operators in Python
- 4. Membership Test Operators in Python
- 5. Bitwise Operators in Python Part 1
- 6. Bitwise Operators In Python Part 2
- 7. Arithmetic Progression nth Term in Python
- 8. Geometric Progression nth Term in Python
- 9. Sum Of Natural numbers In Python
- 10. Find Last Digit In Python
- 11. Day Before N Days In Python
- 1. Loops In Python
- 2. While Loops In Python
- 3. range() In Python
- 4. For Loop In Python
- 5. Table Of A Number In Python
- 6. Break In Python
- 7. Continue In Python
- 8. Nested Loop In Python
- 9. Square Pattern In Python
- 10. Printing Triangle Pattern In Python
- 11. Inverted Triangle In Python
- 12. Pyramid Pattern In Python
- 13. Count Digits In Python
- 14. Factorial In Python
- 15. GCD In Python
- 16. LCM In Python
- 17. Fibonacci Numbers In Python
- 18. Check For Prime In Python
- 19. All Divisors In Python
- 20. Optimizations Of All Divisors And Prime Python
- 1. Strings In Python
- 2. Escape Sequences And Raw Strings Python
- 3. Formatted String In Python
- 4. String Operations Part(1) In Python
- 5. String Operations Part(2) In Python
- 6. String Comparison in Python
- 7. Pattern Searching In Python
- 8. Check For Palindrome In Python
- 9. Reverse A String In Python
- 10. Decimal to Binary In Python
- 11. Binary to Decimal Conversion In Python
Comments: 0