`while True` vs. `while 1` on Python 2.x

gistfile1.txt

>>> def loop():
...     total = 0
...     while 1:
...         total += 1
... 
>>> import dis
>>> dis.dis(loop)
  3           0 LOAD_CONST               1 (0)
              3 STORE_FAST               0 (total)

  4           6 SETUP_LOOP              13 (to 22)

  5     >>    9 LOAD_FAST                0 (total)
             12 LOAD_CONST               2 (1)
             15 INPLACE_ADD         
             16 STORE_FAST               0 (total)
             19 JUMP_ABSOLUTE            9
        >>   22 LOAD_CONST               0 (None)
             25 RETURN_VALUE        
>>> def loop_true():
...     total = 0
...     while True:
...         total += 1
...         
...     
... 
>>> import dis
>>> dis.dis(loop_true)
  3           0 LOAD_CONST               1 (0)
              3 STORE_FAST               0 (total)

  4           6 SETUP_LOOP              22 (to 31)
        >>    9 LOAD_GLOBAL              0 (True)
             12 JUMP_IF_FALSE           14 (to 29)
             15 POP_TOP             

  5          16 LOAD_FAST                0 (total)
             19 LOAD_CONST               2 (1)
             22 INPLACE_ADD         
             23 STORE_FAST               0 (total)
             26 JUMP_ABSOLUTE            9
        >>   29 POP_TOP             
             30 POP_BLOCK           
        >>   31 LOAD_CONST               0 (None)
             34 RETURN_VALUE