5 ap
= argparse
.ArgumentParser()
6 ap
.add_argument("-o", type=str, help='Output file (if not specified, standard output).')
7 ap
.add_argument("input_file", type=str, help="Input file (if not specified, standard input).")
12 output
= open(a
.o
, 'w')
16 input = open(a
.input_file
, 'r')
20 from qpms
.constants
import eV2SU
23 print(eV2SU(float(l
)), file=output
)