#!/usr/bin/python

l = [] # create a list

#concate a list to another list
l = l+[10, 20, 30, 'Hello']; #[10, 20, 30, 'Hello']

#extend
l.extend(['a', 'b', 'c']); #[10, 20, 30, 'Hello', 'a', 'b', 'c']

#access an element
print l[0];

#append, add an element
l.append(10); #[10, 20, 30, 'Hello', 'a', 'b', 'c', 10]

#count, count of how many times obj occurs
print l.count(10);
print l.count('Hello');

#index, the lowest index in list that obj appears
print l.index(10);

#insert, insert an element at the specific position
l.insert(0, 100); #[100, 10, 20, 30, 'Hello', 'a', 'b', 'c', 10]

#pop, remove the last element
print l.pop(); #[100, 10, 20, 30, 'Hello', 'a', 'b', 'c']

#remove, remve an object
l.remove('c'); #[100, 10, 20, 30, 'Hello', 'a', 'b']

#reverse, reverse the order
l.reverse(); #['b', 'a', 'Hello', 30, 20, 10, 100]

#sort
l.sort(); #[100, 10, 20, 30, 'Hello', 'a', 'b']

#repeat a list
l = l*2;

#del
del l[0]; #remove the first 100
l = [x for x in l if x != 20]; #remove all copies of 20

#check length
print len(l); #14
		

#!/usr/bin/python

l = range(0, 100, 10); #[0, 10, 20, 30, 40, 50, 60, 70, 80, 90]

print l[2]; #20
print l[-2]; #80

print l[2:5]; #[20, 30, 40], select element of indices [2, 5)

print l[:2]; #[0, 10]
print l[7:]; #[70, 80, 90]

		

#!/usr/bin/python
a, b = [1, 2];
print a, b; #1 2