On 12/21/2012 12:23 AM, iMath wrote:
Pass and return
Are these two functions the same ?
def test():
return
def test():
pass
I believe they are the same, but these statements have
different meanings in other circumstances, e.g.:
Class A(object): pass
def test():
if x: return
else: # do something
In first example, (in a class), return would be invalid.
In second example, return would return None from function,
pass would result in continuing execution after if/else block.
Btw you can use disassemble function to look into what
these functions do:
>>> def a(): pass
>>> def b():return
>>> from dis import dis
>>> dis(a)
1 0 LOAD_CONST 0 (None)
3 RETURN_VALUE
>>> dis(b)
1 0 LOAD_CONST 0 (None)
3 RETURN_VALUE
So indeed they should be the same..
-m
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