[BioPython] Bio.AlignIO feedback - seq_count

[Peter]

Dear Biopythoneers,

I'm hoping some of you on the mailing list have actually used
Bio.AlignIO, and I'd like to ask for some feedback.

In particular, when loading in sequence files, did you ever use the
optional seq_count argument to declare how many sequences you expected
in each alignment?  The rational of this optional argument is
discussed in the Tutorial,
http://biopython.org/DIST/docs/tutorial/Tutorial.html#sec:AlignIO-count-argument

I'm curious if anyone actually found this useful in real life.

Thanks

Peter