Small diff to help debug by having better error message

Author: nouiz

code/rnnslu.py

@@ -126,11 +126,14 @@ def get_perf(filename, folder):
                             stdout=subprocess.PIPE)
 
     stdout, _ = proc.communicate(''.join(open(filename).readlines()))
+    out = None
     for line in stdout.split('\n'):
         if 'accuracy' in line:
             out = line.split()
             break
-
+    # To help debug
+    if out is None:
+        print stdout.split('\n')
     precision = float(out[6][:-2])
     recall = float(out[8][:-2])
     f1score = float(out[10])