Strange result on os.environ

[Gonçalo Rodrigues]

On Thu, 16 May 2002 17:30:13 +0200, holger krekel
<pyth at devel.trillke.net> wrote:

>Gonçalo Rodrigues wrote:
>> Hi,
>> 
>> os.environ is supposed to be a mapping with keys the environment
>> variables. Then what does it mean the following?
>> 
>> PythonWin 2.2.1 (#34, Apr 15 2002, 09:51:39) [MSC 32 bit (Intel)] on
>> win32.
>> Portions Copyright 1994-2001 Mark Hammond (mhammond at skippinet.com.au) -
>> see 'Help/About PythonWin' for further copyright information.
>> >>> import os
>> >>> for key in os.environ:
>> ... 	print key
>> ... 	
>> Traceback (most recent call last):
>>   File "<interactive input>", line 1, in ?
>>   File "C:\Python22\lib\os.py", line 387, in __getitem__
>>     return self.data[key.upper()]
>> AttributeError: 'int' object has no attribute 'upper'
>
>environ isn't really a dictionary. try
>
>    for key in os.environ.keys():
>        print key

Confusing I´ll say. It isn't really a dict so I can't use the >2.2 idiom

for key in dict:
    <whatever>

but it has a .keys() method...

>
>IIRC there recently was a patch for better behaviour
>but don't count on it.
>
>    holger
>

Thanx 4 the answer,

Al the best,
Gonçalo Rodrigues