I am trying to download information from NCBI Entrez databases (nucleotide), using Biopython package.

I don't need molecular data at all. I just want to check the textual information about certain records, to see references, authors, journals, and information about voucher specimens from which the genome sample was extracted.

My query returns a lot of records, and I need to check if they are related or not to my institution staff (if so, then I extract relevant information about authors, journal, acc number and voucher specimen).

This is my code:

from Bio import Entrez
Entrez.email = "Your.Name.Here@example.org"
# first I try to find the records I am interested in. Example:
query = "Helianthus[Organism]" 
handle = Entrez.esearch(db="nuccore", retmax=1000, term=query, idtype="acc")
records = Entrez.read(handle)
idsList = record["IdList"]
handle.close()

# now I want to retrieve information about each record (but NOT sequences):
handle = Entrez.efetch(db="nuccore", id=idsList, rettype="gb", retmode="text")

# and then I would parse this handle to check the info I am interest in

No problem doing this. But I found that some records include very long sequences (full genome I guess). So the downloaded file will be huge.

Is there any way to avoid genome information to be included in the download?

Or perhaps there is a way to get info about each accession size in my Entrez.esearch query, so I can remove those records from my idsList above?

For example, given this record, this is the only information I want to read.

I am particularly interested in the /specimen_voucher="SF193" line near the end of this text:

LOCUS       MNCJ02000332       195042445 bp    DNA     linear   PLN 13-JUL-2020
DEFINITION  Helianthus annuus cultivar XRQ/B chromosome 17, whole genome
            shotgun sequence.
ACCESSION   MNCJ02000332 MNCJ02000000
VERSION     MNCJ02000332.1
DBLINK      BioProject: PRJNA345532
            BioSample: SAMN05868438
KEYWORDS    WGS.
SOURCE      Helianthus annuus (common sunflower)
  ORGANISM  Helianthus annuus
            Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
            Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae;
            Pentapetalae; asterids; campanulids; Asterales; Asteraceae;
            Asteroideae; Heliantheae alliance; Heliantheae; Helianthus.
REFERENCE   1  (bases 1 to 195042445)
  AUTHORS   Badouin,H., Gouzy,J., Grassa,C.J., Murat,F., Staton,S.E.,
            Cottret,L., Lelandais-Briere,C., Owens,G.L., Carrere,S.,
            Mayjonade,B., Legrand,L., Gill,N., Kane,N.C., Bowers,J.E.,
            Hubner,S., Bellec,A., Berard,A., Berges,H., Blanchet,N.,
            Boniface,M.C., Brunel,D., Catrice,O., Chaidir,N., Claudel,C.,
            Donnadieu,C., Faraut,T., Fievet,G., Helmstetter,N., King,M.,
            Knapp,S.J., Lai,Z., Le Paslier,M.C., Lippi,Y., Lorenzon,L.,
            Mandel,J.R., Marage,G., Marchand,G., Marquand,E., Bret-Mestries,E.,
            Morien,E., Nambeesan,S., Nguyen,T., Pegot-Espagnet,P., Pouilly,N.,
            Raftis,F., Sallet,E., Schiex,T., Thomas,J., Vandecasteele,C.,
            Vares,D., Vear,F., Vautrin,S., Crespi,M., Mangin,B., Burke,J.M.,
            Salse,J., Munos,S., Vincourt,P., Rieseberg,L.H. and Langlade,N.B.
  TITLE     The sunflower genome provides insights into oil metabolism,
            flowering and Asterid evolution
  JOURNAL   Nature 546 (7656), 148-152 (2017)
   PUBMED   28538728
REFERENCE   2  (bases 1 to 195042445)
  AUTHORS   Gouzy,J., Langlade,N. and Munos,S.
  TITLE     Helianthus annuus Genome sequencing and assembly Release 2
  JOURNAL   Unpublished
REFERENCE   3  (bases 1 to 195042445)
  AUTHORS   Langlade,N. and Munos,S.
  TITLE     Direct Submission
  JOURNAL   Submitted (27-FEB-2017) Laboratoire des Interactions Plantes
            Micro-organismes, INRA/CNRS, Chemin de Borderouge, Castanet-Tolosan
            31200, France
REFERENCE   4  (bases 1 to 195042445)
  AUTHORS   Gouzy,J., Langlade,N. and Munos,S.
  TITLE     Direct Submission
  JOURNAL   Submitted (08-JUN-2020) Laboratoire des Interactions Plantes
            Micro-organismes, INRAE/CNRS, Chemin de Borderouge,
            Castanet-Tolosan 31320, France
COMMENT     ##Genome-Assembly-Data-START##
            Assembly Date          :: 17-AUG-2018
            Assembly Method        :: CANU v. 1.3; CANU v. 1.4; FALCON v. 0.7;
                                      Bionano-Solve v. 3.2.1_04122018
            Assembly Name          :: HanXRQr2.0-SUNRISE
            Genome Representation  :: Full
            Expected Final Version :: No
            Genome Coverage        :: 100.0x
            Sequencing Technology  :: PacBio RSII
            ##Genome-Assembly-Data-END##
FEATURES             Location/Qualifiers
     source          1..195042445
                     /organism="Helianthus annuus"
                     /mol_type="genomic DNA"
                     /submitter_seqid="HanXRQChr17"
                     /cultivar="XRQ/B"
                     /specimen_voucher="SF193"
                     /db_xref="taxon:4232"
                     /chromosome="17"
                     /tissue_type="leaves"
                     /dev_stage="4 leaves"
                     /country="France"
                     /collected_by="INRA, LIPM"

Below that, there is a lot of more info (gene, mRNA, CDS ...) up to 11 MB which I do NOT need.

Are there any chances that I can avoid all that stuff to be downloaded?

Or at least, is there a way to skip records bigger than a given size?