[Biopython] Parsing records off PubMed vs. PubMedCentral.

[Jose C. Lacal]

Greetings:

I'm just starting to use BioPython and this may be a dumb question.

I've been following the excellent tutorial at
http://biopython.org/DIST/docs/tutorial/Tutorial.html#htoc88

My question refers to section 8.11.1


a.) I am able to query, retrieve and parse files from db="pubmed" as per
the code below. This works.


from Bio import Entrez, Medline
Entrez.email = "Jose.Lacal at OpenPHI.com"

handle = handle = Entrez.esearch(db="pubmed",
term="hypertension[all]&George+Mason+University[affl]",
rettype="medline", retmode="text")

record = Entrez.read(handle)
print record["IdList"]

idlist = record["IdList"]
handle =
Entrez.efetch(db="pubmed",id=idlist,rettype="medline",retmode="text")

records = Medline.parse(handle)
for record in records:
	print record["AU"]


b.) But when I change db="pubmed" to db="pmc" I get an error message:
KeyError: 'AU'

It looks like "pmc" does not have the same keys as "pubmed" And I've
been unable to find the equivalent format to parse files downloaded from
"pmc" 



Pointers and suggestions most appreciated. regards.



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