Python Arrays
Python Tutorial » Python Arrays
Arrays are used to store multiple values in one single variable:
Example: We create an array containing names
Output:
['John', 'Chris', 'Tom', 'James', 'Mason', 'Jackson']
names = ["John", "Chris", "Tom", "James", "Mason", "Jackson"]
print(names)
print(names)
Output:
['John', 'Chris', 'Tom', 'James', 'Mason', 'Jackson']
Access an element of an Array
If you have a list of items as: numbers, names, cars for example
Example: acces an element from list
Output:
04
numbers = ["34", "45", "04", "1245", "78"]
my_number = numbers[2]
print(my_number)
my_number = numbers[2]
print(my_number)
Output:
04
Length of an Array - example
To get length use the len() method to return length of an array
Example:
5
numbers = ["34", "45", "04", "1245", "78"]
array_lentgh = len(numbers)
print(array_lentgh)
Output: array_lentgh = len(numbers)
print(array_lentgh)
5
Looping Array Elements - example
We use "for in" (without quotes) loop to loop through all the elements of an array.
Example:
34
45
04
1245
78
numbers = ["34", "45", "04", "1245", "78"]
for y in numbers:
print(y)
Output:for y in numbers:
print(y)
34
45
04
1245
78
Adding Array Elements
We use append() method
Example:
['34', '45', '04', '1245', '78', '010101']
numbers = ["34", "45", "04", "1245", "78"]
numbers.append("010101")
print(numbers)
Output:numbers.append("010101")
print(numbers)
['34', '45', '04', '1245', '78', '010101']
Removing Array Elements
We use the pop() method
Example: Syntax Error:
['34', '45', '1245', '78']
numbers = ["34", "45", "04", "1245", "78"]
numbers.pop(2)
print(numbers)
Output:numbers.pop(2)
print(numbers)
['34', '45', '1245', '78']
python arrays length, append, index, of objects, declaration, vs list, of arrays, of strings, slice, push
Python Arrays - python
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