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Create a wider argument parser for better options on --help
def main(args):
def make_wide(formatter, width=120, max_help_position=42):
Increase space between arguments and help text, if possible.
# ensure formatter can be used
kwargs = {"width": width, "max_help_position": max_help_position}
formatter(None, **kwargs)
# return function to create formatter
return lambda prog: formatter(prog, **kwargs)
except TypeError:
# return originally sized formatter
return formatter
if __name__ == "__main__":
args = {
("-v", "--version"): {
"action": "version", version="v1.0",
("-d", "--data"): {
"type": str, "metavar": "PATH", "required": True,
"help": "path to the input data file"
("-o", "--out"): {
"type": str, "metavar": "PATH",
"help": "path to write out the results to"
("-p", "--plot"): {
"action": "store_true",
"help": "visualize the generated graph after exporting it",
parser = argparse.ArgumentParser(
for pargs, kwargs in args.items():
if isinstance(pargs, str):
pargs = (pargs,)
parser.add_argument(*pargs, **kwargs)
args = parser.parse_args()
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