1 files changed, 5 insertions, 1 deletions
diff --git a/gr-trellis/src/examples/python/test_sccc_turbo1.py b/gr-trellis/src/examples/python/test_sccc_turbo1.py
index cae853b9bf..60188e4d3b 100755
--- a/gr-trellis/src/examples/python/test_sccc_turbo1.py
+++ b/gr-trellis/src/examples/python/test_sccc_turbo1.py
@@ -2,13 +2,17 @@
 
 from gnuradio import gr
 from gnuradio import trellis, digital
-from gnuradio import analog
 from gnuradio import eng_notation
 import math
 import sys
 import random
 import fsm_utils
 
+try:
+    from gnuradio import analog
+except ImportError:
+    sys.stderr.write("Error: Program requires gr-analog.\n")
+    sys.exit(1)
 
 def run_test (fo,fi,interleaver,Kb,bitspersymbol,K,dimensionality,constellation,Es,N0,IT,seed):
     tb = gr.top_block ()