Python List real useful command examples

Python commands

In Python, manipulating list also called arrays, is main task while you are dealing or working with data. The Stanford University in its Python tutorial, added the below best examples.

I am giving here for your reference. The hash given below is just a comment. It is not command.

How to create List in Python

# Create a new list
empty = []
letters = [‘a’, ‘b’, ‘c’, ‘d’]
numbers = [2, 3, 5]
# Lists can contain elements of different types
mixed = [4, 5, “seconds”]
# Append elements to the end of a list
numbers.append(7)
# numbers == [2, 3, 5, 7]
numbers.append(11)
# numbers == [2, 3, 5, 7, 11]

# Access elements at a particular index
numbers[0] # => 2
numbers[-1] # => 11
# You can also slice lists – the same rules apply
letters[:3] # => [‘a’, ‘b’, ‘c’]
numbers[1:-1] # => [3, 5, 7]
# Lists really can contain anything – even other lists!
x = [letters, numbers]
x # => [[‘a’, ‘b’, ‘c’, ‘d’], [2, 3, 5, 7, 11]]
x[0] # => [‘a’, ‘b’, ‘c’, ‘d’]
x[0][1] # => ‘b’
x[1][2:] # => [5, 7, 11]
Free Python List examples video really help you

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Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.