somedict = {}

somedict = {"key": value}

a = dict(one=1, two=2, three=3)

c = dict(zip(['one', 'two', 'three'], [1, 2, 3]))

d = dict([('two', 2), ('one', 1), ('three', 3)])

del somedict["key"]
somedict.pop("key", default_value_if_key_not_exist)

somedict["key"] = value

somedict.update(anotherdict)

x = [1,2,3]

x = list((1,2,3))

x.append(value)

x = [1, 2, 3]

y = [4, 5]

z = x + y

x.extend(y)

x.remove(value)

x = x[0:i] + x[i + 1:]
del x[i]
del x[i:j]