def get_hit_count_or_raise(term, db='pubmed', **kwargs):
"""Call eSearch_query and performs error checking.
Raise Exceptions if no hit, or PubMed errors, otherwise
return hit count."""
# Call 'eSearch_query()' and parse the output.
query = {}
parser = make_parser()
parser.setContentHandler(eSearchResultHandler(query))
parser.parse(
eSearch_query(
term=term,
db=db,
usehistory=False,
retmax=0, # (do not return any hit).
**kwargs))
# Check for the presence of "ErrorList".
if query.get('errors'):
raise PubMedException(query.get('errors'))
# Check hit count.
# NB: in case PubMed issues a 'PhraseNotFound' error
# there will be no hit, but the command above will
# have fired a PubMedException before we get here.
count = int(query.get('count', 0))
if count == 0:
raise NoHitException(term)
else:
return count
def get_hit_count(term, **kwargs):
"""Call eSearch_query and performs error checking.
Raise Exceptions if no hit, or PubMed errors, otherwise
return hit count."""
# Call 'eSearch_query()' and parse the output.
query = {}
parser = make_parser()
parser.setContentHandler(eSearchResultHandler(query))
parser.parse(eSearch_query(
term = term,
usehistory = False,
retmax = 0, # (do not return any hit).
**kwargs
))
# Check for the presence of "ErrorList".
if query.get('errors'):
raise PubMedException(query.get('errors'))
# Check hit count.
# NB: in case PubMed issues a 'PhraseNotFound' error
# there will be no hit, but the command above will
# have fired a PubMedException before we get here.
count = int(query.get('count', 0))
if count == 0:
raise NoHitException(term)
else:
return count
def fetch_XML(term, db='pubmed', **kwargs):
"""Query PubMed and return an XML stream."""
eFetch_params = kwargs
parser = make_parser()
parser.setContentHandler(eSearchResultHandler(eFetch_params))
parser.parse(robust_eSearch_query(term, db, **kwargs))
# Plug-in the results of eSearch in eFetch.
return eFetch_query(db=db, **eFetch_params)
def fetch_XML(term, **kwargs): """Query PubMed and return an XML stream.""" eFetch_params = kwargs parser = make_parser() parser.setContentHandler(eSearchResultHandler(eFetch_params)) parser.parse(robust_eSearch_query(term, **kwargs)) # Plug-in the results of eSearch in eFetch. return eFetch_query(**eFetch_params)