---

a = 1

d= { a: "value1", "key2": "value2", "key3": "value3"}
d2 = dict(key='value2', key2='value2')
my_list = [[1,1], [2,2], [3,3]]
d3 = dict(my_list)
print(d)
print(d2)
print(d3)
print (d[a])
a = 100
print (d[a])