python filter a dictionary by keys or values

filter_dict.py

d = {1:11, 2:22, 3:33}

# filter by key
d2 = {k : v for k,v in filter(lambda t: t[0] in [1, 3], d.iteritems())}

# filter by value
d3 = {k : v for k,v in d.iteritems() if k in [2,3]}