How can I sort an associative object by value in Python?

Question

What is the best way for sorting an "associative" object in Python by value?

I have an object with associative key and float value:

data = {
    u'195': 1.33,
    u'716': 0.99,
    u'562': 0.53,
    u'310': 0.5900000000000001,
    u'88' : 0.7,
    u'426': 0.88
}

And I need:

data = {
    u'195': 1.33,
    u'716': 0.99,
    u'426': 0.88,
    u'88':  0.7,
    u'310': 0.5900000000000001,
    u'562': 0.53
}