In order to offer options to my python script, I want to introduce some parameters. I found that the better way to do this in python is with getopt, but once I run my script it doesn't do anything. Please help me!!!. This is my code:
def main(argv):
try:
opts, args = getopt.getopt(argv, 'hi:o:t', ['help', 'input=', 'output='])
except getopt.GetoptError:
usage()
sys.exit(2)
file = None
outfile = None
for opt, arg in opts:
if opt in ('-h', '--help'):
usage()
sys.exit(2)
elif opt in ('-i', '--input'):
file = arg
elif opt in ('-o', '--output'):
outfile = arg
elif opt == '-t':
maininfo(file,outfile)
else:
usage()
sys.exit(2)
if __name__ =='__main__':
main(sys.argv[1:])
I suggest adding more logging. Not only will this help you out now, it'll help out whoever uses your script in future.
def main(argv):
filename = None
outfile = None
call_maininfo = False
try:
opts, args = getopt.getopt(argv, 'hi:o:t', ['help', 'input=', 'output='])
if not opts:
print 'No options supplied'
usage()
except getopt.GetoptError, e:
print e
usage()
sys.exit(2)
for opt, arg in opts:
if opt in ('-h', '--help'):
usage()
sys.exit(2)
elif opt in ('-i', '--input'):
filename = arg
elif opt in ('-o', '--output'):
outfile = arg
elif opt == '-t':
call_maininfo = True
else:
usage()
sys.exit(2)
print 'Processed options [{0}] and found filename [{1}] and outfile [{2}]'.format(
', '.join(argv),
filename,
outfile,
)
if call_maininfo:
print 'Calling maininfo()'
maininfo(filename, outfile)
I also moved the call to maininfo() out of the loop as you could supply -t before the filenames!