lists in python

PYTHON LISTS

Lists is a sequence and a basic data structure.   A list may contain strings (text) and numbers.  A list is similar to an array in other programming languages, but has additional functionality.


We define lists with brackets []. To access the data, these same brackets are used.
for Example:

l = [ "Drake", "Derp", "Derek", "Dominique" ]
 
print(l)     # prints all elements
print(l[0])  # print first element
print(l[1])  # prints second element

And

We can use the functions append() and remove() to manipulate the list.

#!/usr/bin/python   l = [ "Drake", "Derp", "Derek", "Dominique" ]   print(l) # prints all elements l.append("Victoria") # add element. print(l) # print all elements l.remove("Derp") # remove element. l.remove("Drake") # remove element. print(l) # print all elements.

Sort list

We can sort the list using the sort() function.

#!/usr/bin/python   l = [ "Drake", "Derp", "Derek", "Dominique" ]   print(l) # prints all elements l.sort() # sorts the list in alphabetical order print(l) # prints all elements

If you want to have the list in descending order, simply use the reverse() function.

#!/usr/bin/python   l = [ "Drake", "Derp", "Derek", "Dominique" ]   print(l) # prints all elements l.sort() # sorts the list in alphabetical order l.reverse() # reverse order. print(l) # prints all elements