# key should be unique but value can be 'same' or any python object
# unordered (doesnot support indexing or slicing)
# mutable object

a = {}
type(a)
countries = {'np':'Nepal','ch':'China','us':'United States',}
countries['np']
countries.get('ch')

#methods in dictionaries
dir(a)[-11:]

#
b = a.fromkeys('rahul')
b['r'] = 5
print(b['r'])

OUTPUT : 5

#