I want to parse the command line arguments while attempting to call the program in the following manner:
python plot.py --w --Develop origin plot --+3.5
I have been using sys.argv to parse them using a for loop:
for arg in sys,argv:
print(arg)
Output:
plot.py
--w
--Developoriginplot
--+3.5
But I wish to get the output as follows:
plot.py
w
Develop origin plot
+3.5
Is there a way to split the line by specifying the delimeter -- ?
" ".join() the args first, then split by --.
import sys
args = " ".join(sys.argv) # join by spaces
args = [a.strip() for a in args.split("--")] # split by --, remove any extra spaces
print(args)
print("\n".join(args))
Output:
$ python plot.py --w --Develop origin plot --+3.5
['plot.py', 'w', 'Develop origin plot', '+3.5']
plot.py
w
Develop origin plot
+3.5
you need to use the argparser
and here is a sample code of usage:
import argparse
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('integers', metavar='N', type=int, nargs='+',
help='an integer for the accumulator')
parser.add_argument('--sum', dest='accumulate', action='store_const',
const=sum, default=max,
help='sum the integers (default: find the max)')
args = parser.parse_args()
print(args.accumulate(args.integers))
You can use split() and replace() functions. split() takes delimiter as an argument and replace takes two arguments - first one is the character you would like to replace (in your case the white space) and the second one is what you would like to replace it with.
#Your string
s = "--w --Develop origin plot --+3.5"
d = s.replace(' ','').split('--')[1:]
print(d)
>>['w', 'Developoriginplot', '+3.5']
Then you can reference your arguments by the indices of this list.
Hope this helps.
