Disassembling a Python method to its bytecode

dis.py

$ cat foo.py
def bar():
    a = 10
    b = 2
    c = a + b

$ python
>>> import dis
>>> import foo
>>> dis.dis(foo.bar)
  2           0 LOAD_CONST               1 (10)
              3 STORE_FAST               0 (a)

  3           6 LOAD_CONST               2 (2)
              9 STORE_FAST               1 (b)

  4          12 LOAD_FAST                0 (a)
             15 LOAD_FAST                1 (b)
             18 BINARY_ADD          
             19 STORE_FAST               2 (c)
             22 LOAD_CONST               0 (None)
             25 RETURN_VALUE