ArgParse error "too many arguments"

General Usage
1

Hi,

I am trying to use ArgParse to read options from command line. It works when I have three options, but when I add another option it throws “too many argument” error.

using ArgParse
function parse_commandline()
    s = ArgParseSettings()
    @add_arg_table s begin
        "--opt1"
        "--opt2"
        "--opt3"
        "--opt4"
    end
    return parse_args(s)
end
parsed_args = parse_commandline()

ERROR: LoadError: ArgParseError("too many arguments")
Stacktrace:
  [1] argparse_error(x::Any)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:9
  [2] parse_arg!(state::ArgParse.ParserState, settings::ArgParseSettings)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:918
  [3] parse_args_unhandled(args_list::Vector{T} where T, settings::ArgParseSettings, truncated_shopts::Bool)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:632
  [4] parse_args_unhandled(args_list::Vector{T} where T, settings::ArgParseSettings)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:595
  [5] parse_args(args_list::Vector{T} where T, settings::ArgParseSettings; as_symbols::Bool)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:469
  [6] parse_args(args_list::Vector{T} where T, settings::ArgParseSettings)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:466
  [7] parse_args(settings::ArgParseSettings; kw::Any)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:421
  [8] parse_args(settings::ArgParseSettings)
    @ ArgParse ~/.julia/packages/ArgParse/bylyV/src/parsing.jl:421
  [9] parse_commandline()
    @ Main ~/Documents/repositories/local/using ArgParse.jl:10
 [10] top-level scope
2

Works for me (ArgParse version 1.1.4, Julia version 1.6.0):

$ julia -qie '' -- --opt1=hello
julia> using ArgParse

julia> function parse_commandline()
           s = ArgParseSettings()
           @add_arg_table s begin
               "--opt1"
               "--opt2"
               "--opt3"
               "--opt4"
           end
           return parse_args(s)
       end
parse_commandline (generic function with 1 method)

julia> parsed_args = parse_commandline()
Dict{String, Any} with 4 entries:
  "opt3" => nothing
  "opt4" => nothing
  "opt1" => "hello"
  "opt2" => nothing
2 Likes
3

Thanks @fredrikekre, I tried to run the script from the command line and it works, but running in IDE still fails.