[Biopython-dev] [Bug 3105] Bio.Nexus useless line

[bugzilla-daemon at portal.open-bio.org]

http://bugzilla.open-bio.org/show_bug.cgi?id=3105





------- Comment #6 from biopython-bugzilla at maubp.freeserve.co.uk  2010-07-05 06:31 EST -------
(In reply to comment #4)
> It's a typo (a rather old one). 
> 
> Type checking has been changed to isinstance.
> 
> Frank

I've just changed it back to method checking, i.e. as Eric suggested with
my typo fixed:

if hasattr(filename, 'write'):

The trouble with isinstance(filename, file) is that it doesn't allow for file
like objects - specifically a StringIO handle as used in the unit tests,
meaning test_AlignIO.py was failing.

Peter


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