Hi All,
I have a simple question. I am writing a little program that will
make some plots of data files. I want to have optional args to pass,
for example to specify the plot ranges. I have never written a script/
code that takes optional args (but I have used plenty) - so I am
feeling a little sluggish writing a good sys.argv reader. I have the
following few lines I made, but I am wondering if any of you have
suggestions for how to make this better (ie more slick, more readable,
more general etc)
Thanks,
Andre
>>>
import sys
if len(sys.argv) < 2:
print('no data file specified')
sys.exit(-1)
elif len(sys.argv) > 2:
if sys.argv.count('-x') > 1:
print('error: multiple instances of "-x xmin xmax"')
sys.exit(-1)
elif sys.argv.count('-x') == 1:
xrange = sys.argv.index('-x')
if sys.argv.count('-y') > 1:
print('error: multiple instances of "-y ymin ymax"')
sys.exit(-1)
elif sys.argv.count('-y') == 1:
yrange = sys.argv.index('-y')
else:
xrange = 0
yrange = 0
if xrange != 0:
xmin = float(sys.argv[xrange+1])
xmax = float(sys.argv[xrange+2])
else:
xmin = "x-min determined from data file"
xmax = "x-max determined from data file"
if yrange != 0:
ymin = float(sys.argv[yrange+1])
ymax = float(sys.argv[yrange+2])
else:
ymin = "y-min determined from data file"
ymax = "y-max determined from data file"
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