allies = ['USA','UK','France','New Zealand',
          'Australia','Canada','Poland']; allies

len(allies)

allies.append('China'); allies

allies.sort(); allies

allies.sort(); allies

allies[0]

allies[-1]

del allies[0]; allies

allies.append(3442); allies

Parentheses are optional, but useful.

usa = ('Texas', 'California', 'Maryland'); usa

countries = ('canada', 'mexico', usa); countries

countries[2]

countries[2][2]

staff = {'Chris' : 'chris@stater.org',
         'Jake' : 'jake@stater.org',
         'Ashley' : 'ashley@stater.org',
         'Shelly' : 'shelly@stater.org'
        }

staff['Chris']

del staff['Chris']; staff

staff['Guido'] = 'guido@python.org'; staff

BRI = set(['brazil', 'russia', 'india'])

'india' in BRI

'usa' in BRI

BRIC = BRI.copy()

BRIC.add('china')

BRIC.issuperset(BRI)

BRI.remove('russia')

BRI & BRIC