KeyError in pickle

[christof]

Hi,

I am using pickle/unpickle to let my program save its documents to
disk. While this it worked stable for a long time, one of my users now
complained, that he had a file which can't be loaded.

The traceback is:

File "pickle.pyo ", line 1374, in loads
File "pickle.pyo ", line 858, in load
KeyError: 'A'


Does anybody know this problem. How this can happen and how can I
avoid it?

Thanks,
Christof

[Peter Otten]

Re: KeyError in pickle

christof wrote:

I am using pickle/unpickle to let my program save its documents to
disk. While this it worked stable for a long time, one of my users now
complained, that he had a file which can't be loaded.
>
The traceback is:
>
File "pickle.pyo ", line 1374, in loads
File "pickle.pyo ", line 858, in load
KeyError: 'A'
>
>
Does anybody know this problem. How this can happen and how can I
avoid it?

Is this reproducible? How? If not I would guess that the file is corrupted.

Peter

[christof]

Re: KeyError in pickle

On 23 Mai, 10:48, Peter Otten <__pete...@web. dewrote:

christof wrote:

I am using pickle/unpickle to let my program save its documents to
disk. While this it worked stable for a long time, one of my users now
complained, that he had a file which can't be loaded.

>

The traceback is:

>

File "pickle.pyo ", line 1374, in loads
File "pickle.pyo ", line 858, in load
KeyError: 'A'

>

Does anybody know this problem. How this can happen and how can I
avoid it?

>
Is this reproducible? How? If not I would guess that the file is corrupted.
>
Peter

I found the problem: the user did a text export and gave the exported
file the wrong extension. So: the file was not valid python pickle. I
should add a type signature to fhe file format to avoid this.

Thanks anyway,
Christof