--- a/find.py	Tue Dec 08 13:59:05 2020 +1030
+++ b/find.py	Tue Dec 08 14:00:45 2020 +1030
@@ -4,6 +4,7 @@
 import getopt
 import numpy
 import sys
+from functools import reduce
 
 if __name__ == "__main__":
     opts, args = getopt.getopt(sys.argv[1:], "e:hm:s")
@@ -13,13 +14,13 @@
     dostats = False
     for o, a in opts:
         if o == "-h":
-            print """Find data files with certain characteristics
+            print("""Find data files with certain characteristics
 
 %s [-h] [-e exp] [-m min] [-s] file [file ..]
 	exp	Limit to experiment tag exp
         min	Find files with power greater than min
         -s	Print stats about files
-"""
+""")
         elif o == "-e":
             exptag = a
         elif o == "-m":
@@ -27,16 +28,16 @@
         elif o == "-s":
             dostats = True
         else:
-            print "Unknown option " + o
+            print("Unknown option " + o)
             sys.exit(1)
             
     if len(args) == 0:
-        print "Need at least one file to analyse"
+        print("Need at least one file to analyse")
         sys.exit(1)
 
     minfiles = []
     if dostats:
-        print "%-50s %7s %7s %7s (dBm)" % ("Name", "Min", "Mean", "Max")
+        print("%-50s %7s %7s %7s (dBm)" % ("Name", "Min", "Mean", "Max"))
     for fn in args:
         dfile = datafile.DataFile(fn)
 
@@ -48,12 +49,12 @@
                 minfiles.append(fn)
 
         if dostats:
-            print "%-50s %7.2f %7.2f %7.2f" % (fn, dfile.powers.min(), dfile.powers.mean(), dfile.powers.max())
+            print("%-50s %7.2f %7.2f %7.2f" % (fn, dfile.powers.min(), dfile.powers.mean(), dfile.powers.max()))
                                                
     if minlev != None:
         if dostats:
-            print ""
-        print "Files with any sample exceeding %.2f dBm:" % (minlev)
+            print("")
+        print("Files with any sample exceeding %.2f dBm:" % (minlev))
         for fn in minfiles:
-            print fn
+            print(fn)