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-rwxr-xr-xgr-filter/examples/reconstruction.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/gr-filter/examples/reconstruction.py b/gr-filter/examples/reconstruction.py
index 85704bda2b..fd8ba87a2f 100755
--- a/gr-filter/examples/reconstruction.py
+++ b/gr-filter/examples/reconstruction.py
@@ -23,6 +23,7 @@
from gnuradio import gr, digital
from gnuradio import filter
from gnuradio import blocks
+import sys
try:
from gnuradio import channels