SiStripCommon/python/das.py

0001 from das_client import get_data
0002 import subprocess
0003 #from pdb import set_trace
0004
0005 def query(query_str, verbose=False):
0006    'simple query function to interface with DAS, better than using Popen as everything is handled by python'
0007    if verbose:
0008       print('querying DAS with: "%s"' % query_str)
0009    data = get_data(
0010       'https://cmsweb.cern.ch',
0011       query_str,
0012       0, 0, False)
0013
0014    to_get = query_str.split()[0].strip(',')
0015    if data['status'] != 'ok':
0016       raise RuntimeError('Das query crashed')
0017
0018    #-1 works both when getting dataset from files and files from datasets,
0019    #not checked on everything
0020    return [i[to_get][-1]['name'] for i in data['data']]