By default, entrez_summary returns a single record when only one ID is passed and a list of such records for multiple IDs. At the moment extract_form_esummary, which basically wraps sapply/lapply throws errors when it encounters a single esummary record.
Although this behavior can vbe changed with always_return_list, it would make sense for extract_form_esummary to handle single records cleanly -- either by making extract_form_esummary a generic with methods for esummaries and esummary_lists or some if() statements in the current function
By default,
entrez_summaryreturns a single record when only one ID is passed and a list of such records for multiple IDs. At the momentextract_form_esummary, which basically wrapssapply/lapplythrows errors when it encounters a single esummary record.Although this behavior can vbe changed with
always_return_list, it would make sense forextract_form_esummaryto handle single records cleanly -- either by making extract_form_esummary a generic with methods for esummaries and esummary_lists or some if() statements in the current function