From 48b155fcceffa20aec8c16d7227968e7ff126633 Mon Sep 17 00:00:00 2001
From: Jiří Pinkava <j-pi@seznam.cz>
Date: Sun, 26 Jun 2016 13:04:37 +0200
Subject: examples: replace OptionParser by ArgumentParser
---
gr-audio/examples/python/audio_to_file.py | 33 ++++++++++++++-----------------
1 file changed, 15 insertions(+), 18 deletions(-)
(limited to 'gr-audio/examples/python/audio_to_file.py')
diff --git a/gr-audio/examples/python/audio_to_file.py b/gr-audio/examples/python/audio_to_file.py
index 6a2cbcb12e..b385abf925 100755
--- a/gr-audio/examples/python/audio_to_file.py
+++ b/gr-audio/examples/python/audio_to_file.py
@@ -23,37 +23,34 @@
from gnuradio import gr
from gnuradio import audio
from gnuradio import blocks
-from gnuradio.eng_option import eng_option
-from optparse import OptionParser
+from gnuradio.eng_arg import eng_float
+from argparse import ArgumentParser
class my_top_block(gr.top_block):
def __init__(self):
gr.top_block.__init__(self)
- usage="%prog: [options] output_filename"
- parser = OptionParser(option_class=eng_option, usage=usage)
- parser.add_option("-I", "--audio-input", type="string", default="",
+ parser = ArgumentParser()
+ parser.add_argument("-I", "--audio-input", default="",
help="pcm input device name. E.g., hw:0,0 or /dev/dsp")
- parser.add_option("-r", "--sample-rate", type="eng_float", default=48000,
- help="set sample rate to RATE (48000)")
- parser.add_option("-N", "--nsamples", type="eng_float", default=None,
+ parser.add_argument("-r", "--sample-rate", type=eng_float, default=48000,
+ help="set sample rate to RATE (%(default)r)")
+ parser.add_argument("-N", "--nsamples", type=eng_float,
help="number of samples to collect [default=+inf]")
+ parser.add_argument('file_name', metavar='FILE-NAME',
+ help="Output file path")
- (options, args) = parser.parse_args ()
- if len(args) != 1:
- parser.print_help()
- raise SystemExit, 1
- filename = args[0]
+ args = parser.parse_args()
- sample_rate = int(options.sample_rate)
- src = audio.source (sample_rate, options.audio_input)
- dst = blocks.file_sink (gr.sizeof_float, filename)
+ sample_rate = int(args.sample_rate)
+ src = audio.source(sample_rate, args.audio_input)
+ dst = blocks.file_sink(gr.sizeof_float, args.file_name)
- if options.nsamples is None:
+ if args.nsamples is None:
self.connect((src, 0), dst)
else:
- head = blocks.head(gr.sizeof_float, int(options.nsamples))
+ head = blocks.head(gr.sizeof_float, int(args.nsamples))
self.connect((src, 0), head, dst)
--
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