Python Lists

Today I will show you some very interesting methods that can be used in Python lists, which can often save your time.

Most methods can be found in the following link: https://docs.python.org/2/tutorial/datastructures.html

Create a characters list:

lista = ['1', '4', '3', '2', '5', '7', '6', '8', '9']

Convert all characters of the list to int:

lista = map(int, lista)

Show the greatest value from the list:

print max(lista)

Show the lowest value from the list:

print min(lista)

Sum all values from the list

print sum(lista)

Search and returns the index of the value passed by parameter:

lista.index(7)

Sort the list in ascending order:

lista.sort()

Reverse the list

lista.reverse()

Insert all elements of a list at the end of another list:

lista.extend(lista2)

Remove the value passed as parameter (the first found in the list):

lista.remove(14)

Remove the last value from the list:

lista.pop()

Remove the first value from the list:

lista.pop(0)

Count how many times the parameter appear in the list:

lista.count(3)

Convert a string into a list:

lista = []

string = '1 2 3 4 5 6 7 8'

lista = string.split()

Transform a list into a string (separate by comma):

lista = ['1', '4', '3', '2', '5', '7', '6', '8', '9']

string = ', '.join(lista)

print string

Generate a random value from the list:

import random

random.choice(lista)

These are some methods you can use in your algorithm when you are working with lists in Python. 
I hope you enjoyed the tips.