[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

Change by paul j3 : -- resolution: -> not a bug stage: -> resolved status: open -> closed ___ Python tracker ___ ___ Python-bugs-l

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

paul j3 added the comment: >From the documentation, 16.4.4.1. Option value syntax > For short options (options only one character long), the option and its value > can be concatenated: > Several short options can be joined together, using only a single - prefix, > as long as only the last op

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

Yauhen added the comment: I am adding one more testcase in order to clarify more the problem: import argparse import sys parser = argparse.ArgumentParser(prog=sys.argv[0], add_help=False) parser.add_argument('-a', action='store_true') parser.add_argument('-b', action='store_true') parser.add

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

paul j3 added the comment: Try adding a simple positional argument. '-ab' would still produce this error. -- ___ Python tracker ___ ___

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

paul j3 added the comment: This error message is intentional. In def consume_optional(start_index): # identify additional optionals in the same arg string # (e.g. -xyz is the same as -x -y -z if no args are required) # if the action is a sin

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

Change by paul j3 : -- nosy: +paul.j3 ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

Change by Terry J. Reedy : -- nosy: +bethard ___ Python tracker ___ ___ Python-bugs-list mailing list Unsubscribe: https://mail.pyth

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

Yauhen added the comment: It was a mistake in expected result, should be: $ python arparse_test.py -ab -c Namespace(a=True) ['-b', '-c'] -- ___ Python tracker ___

[issue32756] argparse: parse_known_args: raising exception on unknown arg following known one

New submission from Yauhen : steps to reproduce: import argparse import sys parser = argparse.ArgumentParser(prog=sys.argv[0], add_help=False) parser.add_argument('-a', action='store_true') parsed_args, unknown_args = parser.parse_known_args(sys.argv[1:]) print(parse