Podcast Beta
Questions and Answers
What is the primary purpose of using an array in Python?
Which of the following correctly describes the memory allocation of arrays in Python?
What is the correct syntax for creating an array in Python?
Which of the following Type_Codes represents an unsigned integer in Python arrays?
Signup and view all the answers
What happens if the Element_List is omitted when creating an array?
Signup and view all the answers
What is a primary characteristic of an array in Python?
Signup and view all the answers
Which module must be imported to create an array in Python?
Signup and view all the answers
What does the Type_Code 'i' signify when creating an array?
Signup and view all the answers
Which statement correctly initializes an array with the values 10, 20, 30?
Signup and view all the answers
If an array is created with the syntax myArray = array.array('h',[2, 4, 6]), what does 'h' represent?
Signup and view all the answers
Study Notes
Arrays in Python
- An array is a collection of elements that share the same data type.
- It enables storage of multiple values within a single variable.
- Memory allocation for array elements is sequential, promoting efficiency.
Working with Arrays
- Python uses the
arraymodule to handle arrays; it must be imported before use. - General syntax for creating an array includes:
Array_Name = array.array('Type_Code' [, [Element_List]]) - Type_Code indicates the datatype of the array's elements, while Element_List is optional for initialization.
Type Codes
- Various Type_Codes can be utilized to define data types in an array:
| Type_Code | Meaning |
|---|---|
| b | Signed Char |
| B | Unsigned Char |
| u | Unicode Char |
| h | Signed Short |
| H | Unsigned Short |
| i | Signed Int |
| I | Unsigned Int |
| l | Signed Long |
| L | Unsigned Long |
| f | float |
| d | double |
Example Usage
- A practical example defining an array:
import array myArray = array.array('i', [1, 2, 3, 4, 5]) print(myArray) # Outputs the array contents - A dictionary example indicating array-like behavior:
Student = {"Name": "Yesha", "RollNumber": 13, "Standard": 9} Student_Copy = Student.copy() print(Student_Copy) # Outputs: {'Name': 'Yesha', 'RollNumber': 13, 'Standard': 9}
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz will test your knowledge of arrays in Python. You will learn about the basics of array creation, data types, and memory allocation for arrays. Make sure to understand the syntax and functionality of using arrays in your Python programs.
