[Commit-gnuradio] [gnuradio] 07/13: utils: gr_plot_const replace OptionParser by ArgumentParser

[git]

This is an automated email from the git hooks/post-receive script.

jcorgan pushed a commit to branch next
in repository gnuradio.

commit c520bb0153352efcff5526749aa3906ee194ce5a
Author: Jiří Pinkava <address@hidden>
Date:   Sun Jun 26 13:04:42 2016 +0200

    utils: gr_plot_const replace OptionParser by ArgumentParser
---
 gr-utils/python/utils/gr_plot_const | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/gr-utils/python/utils/gr_plot_const 
b/gr-utils/python/utils/gr_plot_const
index e2580dd..28f6a54 100755
--- a/gr-utils/python/utils/gr_plot_const
+++ b/gr-utils/python/utils/gr_plot_const
@@ -33,7 +33,7 @@ except ImportError:
     print "Please install Matplotlib to run this script 
(http://matplotlib.sourceforge.net/)"
     raise SystemExit, 1
 
-from optparse import OptionParser
+from argparse import ArgumentParser
 
 class draw_constellation:
     def __init__(self, filename, options):
@@ -221,24 +221,20 @@ def find(item_in, list_search):
 
 
 def main():
-    usage="%prog: [options] input_filename"
     description = "Takes a GNU Radio complex binary file and displays the I&Q 
data versus time and the constellation plot (I vs. Q). You can set the block 
size to specify how many points to read in at a time and the start position in 
the file. By default, the system assumes a sample rate of 1, so in time, each 
sample is plotted versus the sample number. To set a true time axis, set the 
sample rate (-R or --sample-rate) to the sample rate used when capturing the 
samples."
 
-    parser = OptionParser(conflict_handler="resolve", usage=usage, 
description=description)
-    parser.add_option("-B", "--block", type="int", default=1000,
-                      help="Specify the block size [default=%default]")
-    parser.add_option("-s", "--start", type="int", default=0,
-                      help="Specify where to start in the file 
[default=%default]")
-    parser.add_option("-R", "--sample-rate", type="float", default=1.0,
-                      help="Set the sampler rate of the data 
[default=%default]")
-
-    (options, args) = parser.parse_args ()
-    if len(args) != 1:
-        parser.print_help()
-        raise SystemExit, 1
-    filename = args[0]
-
-    dc = draw_constellation(filename, options)
+    parser = ArgumentParser(conflict_handler="resolve", 
description=description)
+    parser.add_argument("-B", "--block", type=int, default=1000,
+                      help="Specify the block size [default=%(default)r]")
+    parser.add_argument("-s", "--start", type=int, default=0,
+                      help="Specify where to start in the file 
[default=%(default)r]")
+    parser.add_argument("-R", "--sample-rate", type=float, default=1.0,
+                      help="Set the sampler rate of the data 
[default=%(default)r]")
+    parser.add_argument("file", metavar="FILE", nargs=1,
+                      help="Input file with complex samples")
+    args = parser.parse_args()
+
+    dc = draw_constellation(args.file[0], args)
 
 if __name__ == "__main__":
     try: