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-rwxr-xr-xgr-audio/examples/python/multi_tone.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/gr-audio/examples/python/multi_tone.py b/gr-audio/examples/python/multi_tone.py
index d311247520..6232cbef52 100755
--- a/gr-audio/examples/python/multi_tone.py
+++ b/gr-audio/examples/python/multi_tone.py
@@ -25,6 +25,12 @@ from gnuradio import audio
from gnuradio.eng_option import eng_option
from optparse import OptionParser
+try:
+ from gnuradio import analog
+except ImportError:
+ sys.stderr.write("Error: Program requires gr-analog.\n")
+ sys.exit(1)
+
#import os
#print os.getpid()
#raw_input('Attach gdb and press Enter: ')