Velocity Reviews > Re: Strange object identity problem

# Re: Strange object identity problem

F.R.
Guest
Posts: n/a

 11-12-2012
On 11/12/2012 02:27 PM, Robert Franke wrote:
> Hi Frederic,
>
> [...]
>
>>>>> bas = {}
>>>>> for year in range (2010, 2013):

>> ba = st.runs ('BA', '%d-01-01' % year, '%d-12-31' % year)
>> ba.run ()
>> print year, id (ba)
>> bas [year] = ba
>>
>> 2010 150289932
>> 2011 150835852
>> 2012 149727788
>>
>>>>> for y in sorted (bas.keys ()):

>> b = bas [year]

> Shouldn't that be b = bas[y]?

Yes, it should, indeed! What's more, I should have closed and restarted
IDLE. There must have
been a name clash somewhere in the name space. The problem no longer
exists. Sorry
about that. And thanks to all who paused to reflect on this non-problem.
- Frederic.

>
>
>> print y, id (b)
>>
>> 2010 149727788
>> 2011 149727788
>> 2012 149727788
>>

> [...]
>
> Cheers,
>
> Robert
>

duncan smith
Guest
Posts: n/a

 11-12-2012
On 12/11/12 13:40, F.R. wrote:
> On 11/12/2012 02:27 PM, Robert Franke wrote:
>> Hi Frederic,
>>
>> [...]
>>
>>>>>> bas = {}
>>>>>> for year in range (2010, 2013):
>>> ba = st.runs ('BA', '%d-01-01' % year, '%d-12-31' % year)
>>> ba.run ()
>>> print year, id (ba)
>>> bas [year] = ba
>>>
>>> 2010 150289932
>>> 2011 150835852
>>> 2012 149727788
>>>
>>>>>> for y in sorted (bas.keys ()):
>>> b = bas [year]

>> Shouldn't that be b = bas[y]?

> Yes, it should, indeed! What's more, I should have closed and restarted
> IDLE. There must have
> been a name clash somewhere in the name space. The problem no longer
> exists. Sorry
> about that. And thanks to all who paused to reflect on this non-problem.
> - Frederic.
>
>>
>>
>>> print y, id (b)
>>>
>>> 2010 149727788
>>> 2011 149727788
>>> 2012 149727788
>>>

>> [...]
>>
>> Cheers,
>>
>> Robert
>>

>

The problem was that year was bound to the integer 2013 from the first
loop. When you subsequently looped over the keys you printed each key
followed by id(bas[2013]). Restarting IDLE only helped because you
presumably didn't repeat the error.

Duncan

F.R.
Guest
Posts: n/a

 11-13-2012
On 11/12/2012 06:02 PM, duncan smith wrote:
> On 12/11/12 13:40, F.R. wrote:
>> On 11/12/2012 02:27 PM, Robert Franke wrote:
>>> Hi Frederic,
>>>
>>> [...]
>>>
>>>>>>> bas = {}
>>>>>>> for year in range (2010, 2013):
>>>> ba = st.runs ('BA', '%d-01-01' % year, '%d-12-31' % year)
>>>> ba.run ()
>>>> print year, id (ba)
>>>> bas [year] = ba
>>>>
>>>> 2010 150289932
>>>> 2011 150835852
>>>> 2012 149727788
>>>>
>>>>>>> for y in sorted (bas.keys ()):
>>>> b = bas [year]
>>> Shouldn't that be b = bas[y]?

>> Yes, it should, indeed! What's more, I should have closed and restarted
>> IDLE. There must have
>> been a name clash somewhere in the name space. The problem no longer
>> exists. Sorry
>> about that. And thanks to all who paused to reflect on this non-problem.
>> - Frederic.
>>
>>>
>>>
>>>> print y, id (b)
>>>>
>>>> 2010 149727788
>>>> 2011 149727788
>>>> 2012 149727788
>>>>
>>> [...]
>>>
>>> Cheers,
>>>
>>> Robert
>>>

>>

>
> The problem was that year was bound to the integer 2013 from the first
> loop. When you subsequently looped over the keys you printed each key
> followed by id(bas[2013]). Restarting IDLE only helped because you
> presumably didn't repeat the error.
>
> Duncan
>

That's it! Isn't it strange how on occasion one doesn't see the most
obvious and simple mistake, focusing beyond the realm of foolishness.
Thanks all . . .

Frederic