#!/usr/bin/env python

values = [1,1,2,3,5,8,13,21,35,56,91]

print "Information on our list ...."
print values
print "List length = "+str(len(values))

print "List elements with value 8 = "+str(values.count(8))
print "List elements with value 1 = "+str(values.count(1))
print "List elements with value 6 = "+str(values.count(6))

try:
    print "First list element with value 13 = "+str(values.index(13))
    print "First list element with value 14 = "+str(values.index(14))
    print "First list element with value 15 = "+str(values.index(15))
except:
    print "Oops - unable to find what we were looking for"

# Now try search and remove (first occurrence of) a value

print "Removing elements ..."
values.remove(1)
values.remove(35)
print values

# insert an element, append an element, append a series of elements

print "Results of inserting and appending ..."
values.insert(4,12)
values.append(147)
values.extend([238,475,703]);
print values

# replace a slice, delete by index, delete by slice

print "Results of replacing and deleting ..."
values[2:4] = [30,31,32,33,34,35]
del values[5]
del values[8:10]
print values

# now let's sort the list

print "Results of sorting ..."
values.sort()
print values
def evenfirst(one, two):
        if one%2 == 0 and two%2 != 0: return -1
        if one%2 != 0 and two%2 == 0: return 1
        return cmp(one, two)

values.sort(evenfirst)
print values