How to convert charlist to string?

What library do use for interactions with Python? I think it might have an option to return binaries instead of charlists

But until then you can just charlist = 'abc'; string = "#{charlist}" or use to_string. To traverse maps, you can use Map.new()

So, to convert one map, you should write something like

Map.new(old_map, fn
  {list, value} when is_list(list) ->
    key =
      try do
        "#{list}"
      except
        # In case it's not a charlist
        _ -> list
      end

    {key, value}

  other ->
    other
end)

Post removed. @hst337 was faster

Thank you! I converted it to string by to_string()!

This code is pretty defensive. I’d probably do:

 Map.new(map, fn {k, v} -> {List.to_string(k), v} end)

And let List.to_string/1 handle the edge-cases.

Oh, I’ve just found out that Python can’t have lists as dict keys by default. But there can still be tweaks, so extra handling is never killed anyone

The “Let is crash” philosophy is supposed to keep us from (premature) defensive code, as less code has advantages (less code, less bugs etc).

I would say the shorter code of @adamu is better in this case.

Can you tell us what you’ve used?

erlport but it was a long time ago and I can’t remember anything about the library today