Detect illegal python construction and pass error to user
Closed this issue · 1 comments
trevorld commented
Give user this error message
# test.py
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("M", required=True, help = "Test")
args = parser.parse_args()
trevorld@trevorld-Bonobo-Extreme:~/projects$ python ~/tmp/test.py
Traceback (most recent call last):
File "/home/trevorld/tmp/test.py", line 4, in <module>
parser.add_argument("M", required=True, help = "Test")
File "/usr/lib/python2.7/argparse.py", line 1265, in add_argument
kwargs = self._get_positional_kwargs(*args, **kwargs)
File "/usr/lib/python2.7/argparse.py", line 1377, in _get_positional_kwargs
raise TypeError(msg)
TypeError: 'required' is an invalid argument for positionals
With this call
library(argparse,quietly = T,verbose=F)
parser <- ArgumentParser()
parser$add_argument('M',required=TRUE,
help="Test")
Args <- parser$parse_args()
Instead of
Error in rjson::fromJSON(paste(output, collapse = "")) :
unexpected character 'T'
trevorld commented
Reported by Martí Duran Ferrer