Faster alternative of NCBI eutils

Question

[Arup Ghosh]

I'm trying to convert some Biosample ids to SRA is using the following python script but the response time is very high. Is there any faster way to do the same?

#!/usr/bin/python3
import urllib.request
import sys
from bs4 import BeautifulSoup

# example url :://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=biosample&cmd=neighbor_score&linkname=bioproject_sra_all&db=sra&id=235777 
idconv="https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=biosample&cmd=neighbor_score&linkname=bioproject_sra_all&db=sra&id="
with open(sys.argv[1],"r") as uids:
        for uid in uids:
                url=idconv+uid
                req = urllib.request.Request(url, data=None,headers={'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.47 Safari/537.36'}) 
                print(uid)
                page=urllib.request.urlopen(req)
                soup=BeautifulSoup(page,"lxml")
                print(soup.prettify())

[microfuge]

Not a programatic approach but you can use batch entrez (https://www.ncbi.nlm.nih.gov/sites/batchentrez) Batch Entrez -> Select Data base BioSample -> Upload biosample id list -> Retrieve Records -> Select summary Text -> Download The file -> Grep "^Identifiers"

[Arup Ghosh]

Not accepting more than 20 entries at a time.

[microfuge]

Sorry my bad. You need to choose send to -> file option and then select Summary (Text). The web page by default displays only 20 entries.

Answer 1

[GenoMax]

This file probably has the information you need. If not, you should look around on the FTP site linked.

Answer 2

[Pierre Lindenbaum]

first idea: group your ids, separated by a comma: e.g: 20 ids per http request

...all&db=sra&id=1,2,3,4,5,6