summary for dictionaries with non-integer keys

[frederikgeth]

It would be nice if the summary function also works when the keys are strings, e.g. as it is in PMD engineering data model.

Here's an example that breaks (file in PMD/test/data):

import InfrastructureModels
using PowerModelsDistribution
file = "case3_balanced.dss"
eng = parse_file(file)
InfrastructureModels.summary(stdout,eng)

results in

julia> InfrastructureModels.summary(stdout,eng)
Metadata
  conductor_ids: [(4)]
  data_model: ENGINEERING
  files: [(1)]
  name: 3bus_example
  settings: {(5)}

Table Counts
  bus: 3
  line: 2
  linecode: 2
  load: 3
  time_series: 1
  voltage_source: 1


Table: bus
             grounded,    rg, terminals,    xg
ERROR: ArgumentError: invalid base 10 digit 's' in "sourcebus"
Stacktrace:
  [1] tryparse_internal(#unused#::Type{Int64}, s::String, startpos::Int64, endpos::Int64, base_::Int64, raise::Bool)
    @ Base ./parse.jl:137
  [2] parse(::Type{Int64}, s::String; base::Nothing)
    @ Base ./parse.jl:241
  [3] parse
    @ ./parse.jl:241 [inlined]
  [4] #43
    @ ~/.julia/packages/InfrastructureModels/KOVFf/src/core/data.jl:400 [inlined]
  [5] lt
    @ ./ordering.jl:111 [inlined]
  [6] sort!(v::Vector{String}, lo::Int64, hi::Int64, #unused#::Base.Sort.InsertionSortAlg, o::Base.Order.By{InfrastructureModels.var"#43#53", Base.Order.ForwardOrdering})
    @ Base.Sort ./sort.jl:507
  [7] sort!(v::Vector{String}, lo::Int64, hi::Int64, a::Base.Sort.MergeSortAlg, o::Base.Order.By{InfrastructureModels.var"#43#53", Base.Order.ForwardOrdering}, t::Vector{String})
    @ Base.Sort ./sort.jl:592
  [8] sort!
    @ ./sort.jl:591 [inlined]
  [9] sort!
    @ ./sort.jl:662 [inlined]
 [10] #sort!#8
    @ ./sort.jl:723 [inlined]
 [11] #sort#9
    @ ./sort.jl:770 [inlined]
 [12] summary(io::Base.TTY, data::Dict{String, Any}; float_precision::Int64, component_types_order::Dict{Any, Any}, component_parameter_order::Dict{Any, Any}, max_parameter_value::Float64, component_status_parameters::Set{String})
    @ InfrastructureModels ~/.julia/packages/InfrastructureModels/KOVFf/src/core/data.jl:400
 [13] summary(io::Base.TTY, data::Dict{String, Any})
    @ InfrastructureModels ~/.julia/packages/InfrastructureModels/KOVFf/src/core/data.jl:279
 [14] top-level scope
    @ REPL[17]:1

Not sure what the preferred way of fixing this is.