{"id":549,"date":"2024-11-22T03:15:46","date_gmt":"2024-11-22T03:15:46","guid":{"rendered":"https:\/\/techkubo.com\/python\/?p=549"},"modified":"2025-06-21T16:59:50","modified_gmt":"2025-06-21T16:59:50","slug":"python-arrays","status":"publish","type":"post","link":"https:\/\/techkubo.com\/python\/python-arrays\/","title":{"rendered":"Python Arrays"},"content":{"rendered":"\n

Using the Array Module<\/h2>\n\n\n\n

To use arrays in Python, you need to import the array<\/code> module and create an array.<\/p>\n\n\n\n

Arrays can only hold elements of the same type, specified by a type code.<\/p>\n\n\n\n

import array as arr\n\n# Creating an integer array\nnumbers = arr.array('i', [1, 2, 3, 4, 5])\nprint(numbers)  # Output: array('i', [1, 2, 3, 4, 5])<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
Accessing Array Elements<\/h2>\n\n\n\n
You can access individual elements in an array using indexing.<\/p>\n\n\n\n
The index 0<\/code> accesses the first element, similar to lists.<\/p>\n\n\n\n
print(numbers[0])  # Output: 1\nprint(numbers[2])  # Output: 3<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
Modifying Array Elements<\/h2>\n\n\n\n
Arrays are mutable, meaning you can change their elements after creation.<\/p>\n\n\n\n
You can modify elements by accessing them using their index.<\/p>\n\n\n\n
numbers[1] = 20\nprint(numbers)  # Output: array('i', [1, 20, 3, 4, 5])<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
Adding and Removing Elements<\/h2>\n\n\n\n
You can add elements to an array using the append()<\/code> method and remove elements using the remove()<\/code> method or the pop()<\/code> method.<\/p>\n\n\n\n
    \n
  • append()<\/code> adds an element to the end of the array.<\/li>\n\n\n\n
  • remove()<\/code> removes the first occurrence of a specified value.<\/li>\n\n\n\n
  • pop()<\/code> removes an element at a specified index and returns it.<\/li>\n<\/ul>\n\n\n\n
    numbers.append(6)\nprint(numbers)  # Output: array('i', [1, 20, 3, 4, 5, 6])\n\nnumbers.remove(20)\nprint(numbers)  # Output: array('i', [1, 3, 4, 5, 6])\n\nremoved_element = numbers.pop(2)\nprint(removed_element)  # Output: 4\nprint(numbers)          # Output: array('i', [1, 3, 5, 6])<\/pre><\/div>\n\n\n\n
    <\/p>\n\n\n\n
    Python Arrays Example Code<\/h4>\n\n\n\n
    <\/p>\n\n\n\n
    This program creates arrays, accesses and modifies elements, adds and removes elements.<\/p>\n\n\n\n
    import array as arr\n\n# Using the array module\n# Creating an integer array\nnumbers = arr.array('i', [1, 2, 3, 4, 5])\nprint(numbers)  # Output: array('i', [1, 2, 3, 4, 5])\n\n# Accessing elements\nprint(numbers[0])  # Output: 1\n\n# Modifying elements\nnumbers[1] = 20\nprint(numbers)  # Output: array('i', [1, 20, 3, 4, 5])\n\n# Adding and removing elements\nnumbers.append(6)\nprint(numbers)  # Output: array('i', [1, 20, 3, 4, 5, 6])\n\nnumbers.remove(20)\nprint(numbers)  # Output: array('i', [1, 3, 4, 5, 6])\n\nremoved_element = numbers.pop(2)\nprint(removed_element)  # Output: 4\nprint(numbers)          # Output: array('i', [1, 3, 5, 6])<\/pre><\/div>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    <\/p>\n\n\n\n
    Python Labs<\/strong><\/h2>\n\n\n\n