python dict

# a dictionary is created with curly braces {}

>>> d = {}

>>> type(d)

# add key,value pairs to the dict

>>> d['adam'] = 123422

>>> d['barry'] = 234223

>>> d['charlie'] = 999322

>>> d

{'barry': 234223, 'adam': 123422, 'charlie': 999322}

# test whether keys are in a dict

>>> 'steve' in d

False

>>> 'barry' in d

True

# iterate through a dict's keys

>>> for k in d.iterkeys():

... print k

...

barry

adam

charlie

# get a key's value from the dict

>>> d.get(k)

999322

# iterate through keys and print out key, value

>>> for k in d.iterkeys():

... print k, " = ", d.get(k)

...

barry = 234223

adam = 123422

charlie = 999322

# more detailed info on python dict: http://docs.python.org/library/stdtypes.html#mapping-types-dict