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-rw-r--r--[-rwxr-xr-x]gr-audio/examples/python/mono_tone.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/gr-audio/examples/python/mono_tone.py b/gr-audio/examples/python/mono_tone.py
index 653fd575fc..be86a4f6f4 100755..100644
--- a/gr-audio/examples/python/mono_tone.py
+++ b/gr-audio/examples/python/mono_tone.py
@@ -20,6 +20,7 @@
# Boston, MA 02110-1301, USA.
#
+from __future__ import unicode_literals
from gnuradio import gr
from gnuradio import audio
from gnuradio.eng_arg import eng_float