return statement in functions
imbosol at aerojockey.invalid
Wed Dec 24 00:19:40 CET 2003
Francis Avila wrote:
> hokiegal99 wrote in message
> <93f5c5e9.0312221718.23e42dac at posting.google.com>...
>>I was told earlier (w/o explanation) that functions should return
>>something. I was under the impression that it was OK with Python to
>>leave the return statement off.
> Functions return something in Python, by definition. If you leave the
> return statement off, Python inserts an implicit 'return None' to the end of
> the text of your function.
It seems that Python inserts the implicit "return None" even if you do
return a value.
Python 2.2.3c1 (#12, May 27 2003, 21:32:04)
[GCC 2.95.4 20011002 (Debian prerelease)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> def a():
... return 1
>>> import dis
0 SET_LINENO 1
3 SET_LINENO 2
6 LOAD_CONST 1 (1)
10 LOAD_CONST 0 (None)
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