Esearch returning History server reference to UIDs

Same example as above, but in place of UIDs WebeEnv and query_key are returned. By default, entrezpy uses the history server (setting the POST parameter usehistory=y) and is not required to be passed as parameter explicitly.

import entrezpy.esearch.esearcher

e = entrezpy.esearch.esearcher.Esearcher('esearcher', 'email')
a = es.inquire('db':'nucleotide','term':'viruses[orgn]', 'retmax': 110000)
print(a.size())
print(a.reference().webenv, a.reference().querykey)

Line 1: Import the esearcher module

Line 3: Instantiate an esearcher instance with the required parameter

tool (using ‘esearcher’) and email

Line 4: Run query to search the database nucleotide, using the term

viruses[orgn] and limit the result to the first 110,000 UIDs. Store the returned default analyzer in a

Line 5: Print the number of fetched UIDs, which should be 0 Line 6: Print the WebEnv and query_key