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.
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Python List
We define lists with brackets []. To access the data, these same brackets are used.
Example list usage:
#!/usr/bin/python l = [ "Drake", "Derp", "Derek", "Dominique" ] print(l) # prints all elements print(l[0]) # print first element print(l[1]) # prints second element |
Add/remove
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 |