Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

Allow path in contributors to be null

See original GitHub issue

Overview

contributors in the package metadata MAY have a path attribute (see specs). Indeed, when this attribute is not listed (see Cookie Monster in example), it passes validation.
However, if the path attribute is present with the null value (see Ernie in example), it results in an error message:

code           message
-------------  -------------------------------------------------------------------------------------------------------------------------------------------------------------------------
package-error  The data package has an error: "None is not of type 'string'" at "contributors/1/path" in metadata and at "properties/contributors/items/properties/path/type" in profile

I think the null value should not result in an error. Note that expected behaviour for the very similar property organization.

To repeat error, run frictionless validate datapackage.json on datapackage.json content below.

datapackage.json

{
  "name": "period-table",
  "title": "Periodic Table",
  "profile": "tabular-data-package",
  "licenses": [{
    "id": "CC0-1.0",
    "title": "CC0 1.0",
    "url": "https://creativecommons.org/publicdomain/zero/1.0/"
  }],
  "contributors": [
    {
      "title": "Bert",
      "email": "bert@example.com",
      "path": "https://example.com",
      "role": "contributor",
      "organization": "Sesame street"
    },
    {
      "title": "Ernie",
      "email": "ernie@example.com",
      "path": null,
      "role": "contributor",
      "organization": null
    },
    {
      "title": "Cookie Monster",
      "email": "cm@example.com",
      "role": "contributor"
    }
  ],
  "resources": [{
    "path": "https://raw.githubusercontent.com/frictionlessdata/examples/master/periodic-table/data.csv",
    "name": "data",
    "profile": "tabular-data-resource",
    "format": "csv",
    "mediatype": "text/csv",
    "encoding": "UTF-8",
    "schema": {
      "fields": [{
          "name": "atomic number",
          "type": "integer",
          "format": "default"
        },
        {
          "name": "symbol",
          "type": "string",
          "format": "default"
        },
        {
          "name": "name",
          "type": "string",
          "format": "default"
        },
        {
          "name": "atomic mass",
          "type": "number",
          "format": "default"
        },
        {
          "name": "metal or nonmetal?",
          "type": "string",
          "format": "default"
        }
      ]
    }
  }]
}

Please preserve this line to notify @roll (lead of this repository)