[pygr-notify] Issue 12 in pygr: Disallow overwriting seqdb or Print out error message on overwriting attempt

[codesite-noreply at google.com]

Issue 12: Disallow overwriting seqdb or Print out error message on 
overwriting attempt
http://code.google.com/p/pygr/issues/detail?id=12

New issue report by deepreds:
Sometimes, when you are using pygr, you may encounter error message
saying "seq not in prefixuniondict" even if you think you are using same
Annotation DB or NLMSA. Overwriting seqdb.BlastDB in pygr.Data can sever
the connection between seqdb and AnnotDB/NLMSA. I think we need to
disallow overwriting seqdb.BlastDB in pygr.Data or print out error message
saying it is not good...


Issue attributes:
	Status: New
	Owner: deepreds
	Labels: Type-Enhancement Priority-Medium

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