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-rwxr-xr-xgr-filter/examples/reconstruction.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/gr-filter/examples/reconstruction.py b/gr-filter/examples/reconstruction.py
index f4908006fc..75c224e79c 100755
--- a/gr-filter/examples/reconstruction.py
+++ b/gr-filter/examples/reconstruction.py
@@ -24,6 +24,12 @@ from gnuradio import gr, digital
from gnuradio import filter
try:
+ from gnuradio import channels
+except ImportError:
+ print "Error: Program requires gr-channels."
+ sys.exit(1)
+
+try:
import scipy
from scipy import fftpack
except ImportError: