[Mne_analysis] [mne-python] strange behavior of raw.save()

[Martin Luessi]

Hi Denis,

Are you by any chance saving the raw file to the same file from where 
you read it? I.e., something like

raw = Raw('test_raw.fif')
..
raw.save('test_raw.fif')

Unless you use preload=True, this won't work since raw.save() will read 
from the file and at the same time overwrite it. We should add a check 
such that it throws and exception with a explanatory error message if 
one tries to do this.

Martin

On 09/08/12 16:04, Denis-Alexander Engemann wrote:
> Hi all,
>
> on saving a raw file using the instance method save() I get the
> following error message.
>
> http://pastebin.com/g66H4svV
>
> After that the file is not readable anymore ( the same error message
> will appear as Raw.__init__() is called. )
>
> If I use an alternative file name this does not happen.
>
> a) what is the reason for that / what does it actually tell, and
>
> b) shouldn't that rather throw an exception than messing up the original file?
>
>
> Cheers,
> Denis
>
>
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