How to Store Ordered Data List
In Python, a List is a data type that represents ordered data. It allows storing and modifying elements of various data types.
Lists are created by enclosing elements in square brackets [] and separating each element with a comma (,).
Each element in a list can be accessed by an Index.
An index is a number that indicates the position of a specific element within a data structure containing sequential elements, such as a list.
Indices in a list start at 0, with 0 referring to the first element in the list.
# Creating a list of integers numbers = [100, -2, 32, 450]
In the example above, the elements at each index in the numbers list are as follows:
-
numbers[0]: 100 -
numbers[1]: -2 -
numbers[2]: 32 -
numbers[3]: 450
What Data Can Be Stored in a List?
Lists can store various types of data, such as integers, strings, and other lists.
# Creating a list that includes various data types mixed = [1, "apple", True, 3.14]
In the example above, the mixed list includes elements of various data types such as an integer, string, boolean, and floating-point number.
Moreover, lists can contain other lists as well.
mixed_list = [1, "apple", ["Python"]]
In the example above, the third element of mixed_list, i.e., mixed_list[2], includes another list ["Python"].
Lessons in this chapter Β· List and Tuple data types for storing data in sequence
- 1. How to Store Ordered Data List
- 2. How to Utilize Values in a List
- 3. List IndexError Exception Handling
- 4. How to Concatenate, Repeat, and Determine the Length of Lists
- 5. Adding Elements with append() and insert()
- 6. Multiple-choice quiz
- 7. Comparing List Concatenation and Element Addition in Python
- 8. Removing Elements with the del Keyword and pop() Function
- 9. Removing an Element with a Specific Value using remove() Function
- 10. Using the clear() Function to Remove All Values in a List
- 11. Sorting List Elements with the sort() Function
- 12. How to Check if a List Contains a Specific Element
- 13. Multiple-choice quiz
- 14. Immutable Data Type, Tuple
- 15. Immutability of Tuples and Exception Handling
- 16. Accessing Specific Elements with Tuple Indexing
- 17. Selecting a Portion of a Tuple with Slicing
- 18. How to Perform Operations on Tuples
- 19. Coding Quiz - Sorting Lists
- 20. Multiple-choice quiz
- 21. Fill-in-the-blank quiz
Does the index of a list start at 1?
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