bug fix for if no triggers after cuts in single_trigger_fits, remove …

…unused import and fix regex

bin/live/pycbc_live_combine_single_fits

@@ -68,15 +68,14 @@ for f in files:
                          - datetime.date(2000, 1, 1)).days
         analysis_dates += [n_since_epoch]
     else:
-        # This is the regex string to match a date in format YYYY_MM_DD, 
+        # This is the regex string to match a date in format YYYY_MM_DD,
         # or if MM or DD only have one character
         # FutureWarning: this will become obsolete in the year 3000
         re_string = '([12]\d{3}_(0?[1-9]|1[0-2])_(0?[1-9]|[12]\d|3[01]))'
         m = re.search(re_string, f)
-        date_array = m.group(0).split('_')
-        analysis_year = int(date_array[0])
-        analysis_month = int(date_array[1])
-        analysis_day = int(date_array[2])
+        analysis_year = int(m.group(1))
+        analysis_month = int(m.group(2))
+        analysis_day = int(m.group(3))
         n_since_epoch = (datetime.date(analysis_year, analysis_month,
                                        analysis_day)
                          - datetime.date(2000,1,1)).days

bin/live/pycbc_live_single_trigger_fits

@@ -19,9 +19,6 @@ from pycbc.events import triggers, trigger_fits as trstats
 from pycbc.io import DictArray
 from pycbc.events import ranking
 import argparse, logging, operator, os, sys, re, h5py
-import matplotlib
-matplotlib.use('agg')
-from matplotlib import pyplot as plt
 
 def inequality_string_to_function(inequ):
     if inequ == "==":
@@ -100,6 +97,8 @@ args = parser.parse_args()
 
 pycbc.init_logging(args.verbose)
 
+logging.info("Finding files")
+
 files = [f for f in os.listdir(os.path.join(args.top_directory, args.analysis_date))
          if args.file_identifier in f]
 
@@ -264,6 +263,7 @@ if cutting_newsnr:
             events[ifo] = events[ifo].select(idx_keep)
         else:
             logging.info("Too many cuts on the data - removed everything from " + ifo)
+            events[ifo] = events[ifo].select(idx_keep)
 
 logging.info("Number of events which meet all criteria:")
 for ifo in args.ifos: