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lidatong / dataclasses-json

Easily serialize Data Classes to and from JSON
MIT License
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AttributeError: 'list' object has no attribute 'keys' #507

Open WolfgangFahl opened 10 months ago

WolfgangFahl commented 10 months ago

Description

I am generating Yaml files and rereading them using the from_dict feature of dataclasses_json

Code snippet that reproduces the issue

I am still debugging so i don't have a small example yet. The code and data that fails is below. The line that causes the problem is:

content = content_class.from_dict(data)

  def test_master_informatik(self):
        """
        Modulhandbuch Master Informatik 2023 RWTH Aachen
        """
        file_name = "MHBXMLRAW_Master_1_Fach_Informatik_2023.json"
        url = "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/"
        home_dir = os.path.expanduser("~")
        base_path = os.path.join(home_dir, ".dcm/rwth_aachen/")
        file_path = f"{base_path}/{file_name}"
        if os.path.isfile(file_path):
            # Load the JSON data
            with open(file_path, "r") as file:
                mh_data = json.load(file)
            self.assertTrue("MODULHANDBUCH" in mh_data)
            # Adjust the path to the array based on your actual JSON structure
            competence_elements = mh_data["MODULHANDBUCH"]["STRUKTUR"]["STP_KNOTEN"]

            # Create the competence tree
            competence_tree = self.create_competence_tree(competence_elements, url=url)
            # Pretty print the JSON with specified indentation
            #pretty_json = competence_tree.to_pretty_json()
            yaml_str = competence_tree.to_yaml()
            debug = self.debug
            debug=True
            if debug:
                print(yaml_str)
            with open("/tmp/rwth_aachen_master_informatik.yaml", "w") as yaml_file:
                yaml_file.write(yaml_str)
            dcm=DynamicCompetenceMap.from_definition_string(
                name="RWTH Aachen Master Informatik",
                definition_string=yaml_str,
                content_class=CompetenceTree,
                markup="yaml",
                debug=debug) 
            self.assertIsNotNone(dcm)

which calls

@classmethod
    def from_definition_string(
        cls, 
        name: str, 
        definition_string: str, 
        content_class, 
        markup: str = "json",
        debug:bool = False
    ) -> Any:
        """
        Load a DynamicCompetenceMap or Learner instance from a definition string (either JSON or YAML).

        Args:
            name (str): A name identifier for the data source.
            definition_string (str): The string content of the definition.
            content_class (dataclass_json): The class which will be instantiated with the parsed data.
            markup (str): The markup format of the data. Defaults to 'json'. Supported values are 'json' and 'yaml'.
            debug(bool): if True supply a JSON dump of the data in /tmp/{name}.json
        Returns:
            DynamicCompetenceMap: An instance of DynamicCompetenceMap loaded with the parsed data.

        Raises:
            ValueError: If there's an error in parsing the data.
        """
        try:
            data = cls.parse_markup(definition_string, markup)
            if debug:
                # Save the parsed data to a JSON file in /tmp directory
                debug_file_path = os.path.join('/tmp', f'{name}.json')
                with open(debug_file_path, 'w') as debug_file:
                    json.dump(data, debug_file, indent=2,default=str)
                content = content_class.from_dict(data)
            if isinstance(content, CompetenceTree):
                return DynamicCompetenceMap(content)
            else:
                return content
        except Exception as ex:
            cls.handle_markup_issue(name, definition_string, ex, markup)

the YAML input is

name: Computer Science
id: '1425409'
url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
aspects:
- name: Electives
  id: '1433959'
  url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
  areas:
  - name: Theoretical Computer Science
    id: '1433960'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Visual Computing & Interaction
    id: '1436731'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Hardware/Software Systems
    id: '1435044'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: AI & Data
    id: '1435552'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Software methods, tools
    id: '1440210'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
- name: Applied Courses
  id: '1430972'
  url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
  areas:
  - name: Biology
    id: '1430973'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Business Administration
    id: '1431214'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Electrical Engineering
    id: '1431629'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Mathematics
    id: '1431977'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Mechanical Engineering
    id: '1432295'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Physics
    id: '1432891'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Philosophy
    id: '1433063'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Chemistry
    id: '1433477'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Medicine
    id: '1433612'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Accredited Applied Course
    id: '1433897'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Psychology
    id: '1433926'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
- name: Labs, Seminars, Colloquiums
  id: '1438244'
  url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
  areas:
  - name: Seminar Computer Science
    id: '1438871'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Software Lab
    id: '1438806'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Depth Area Colloquium
    id: '1438690'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Seminar aus anderen Fakultäten/Fachgruppen
    id: '1534364'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
- name: Master Thesis
  id: '1433954'
  url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
  areas: []
- name: Requirements
  id: '1428650'
  url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
  areas:
  - name: Programming Concepts
    id: '1429415'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Compiler Construction
    id: '1429435'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Efficient Algorithms
    id: '1429442'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Satisfiability Checking
    id: '1429450'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Module Complexity Theory
    id: '1429477'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Mathematical Logic II
    id: '1429491'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Model Checking
    id: '1429498'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Modeling and analysis of hybrid systems
    id: '1429505'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Calculus for Computer Science
    id: '1429511'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Discrete Structures
    id: '1429520'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Advanced Internet Technology
    id: '1429547'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Communication Systems Engineering
    id: '1429564'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Embedded Systems
    id: '1429579'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Mobile Internet Technology
    id: '1429605'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Model-Based Software Engineering
    id: '1429626'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Software Architectures
    id: '1429649'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Software Quality Assurance
    id: '1429667'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Software-Engineering programming language Ada 95
    id: '1429682'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Business Process Intelligence
    id: '1429698'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Introduction to Web Technologies
    id: '1429705'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Artificial Intelligence
    id: '1429722'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Knowledge Representation
    id: '1429739'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Automatic Speech Recognition
    id: '1429751'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Computer Vision
    id: '1429777'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Designing Interactive Systems I
    id: '1429790'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Research module
    id: '1429806'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Computer Graphics
    id: '1429819'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: High-Performance Computing
    id: '1429833'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: iOS Application Development
    id: '1429849'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Concepts and Models for Parallel and Data-centric Programming
    id: '1429863'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Performance Analysis and Correctness Checking of Parallel Applications
    id: '1429876'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Digital Fabrication
    id: '1429891'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Physically-Based Animation
    id: '1429899'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Real-time Graphics
    id: '1429913'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Social Data Science
    id: '1429927'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Social Networks
    id: '1429934'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Statistical Classification and Machine Learning
    id: '1429960'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Statistical Methods in Natural Language Processing
    id: '1429975'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Text Mining
    id: '1429990'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Web Mining
    id: '1430004'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Introduction to Anatomy
    id: '1430016'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Introduction to Medicine for Nature Scientists and Engineers 1 and 2
    id: '1430023'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Health Care Systems
    id: '1430035'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Foundations of Cell Biology and Biochemistry
    id: '1430041'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Medical Biometrics and Clinical Epidemiology
    id: '1430051'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Medical Methodology
    id: '1430060'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Methodology of Planning
    id: '1430087'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Transport planning I
    id: '1430094'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Decision Theory
    id: '1430189'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Operations Research
    id: '1430268'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Biology for Students of Computer Sciences and Mathematics
    id: '1430278'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Practical Course Biology for Students of Computer Sciences
    id: '1430294'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Inorganic Chemistry
    id: '1430305'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Organic Chemistry
    id: '1430313'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Computational Chemistry
    id: '1430318'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Theory of Chemical Bonds
    id: '1430325'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Fundamentals of Electrical Engineering 2 - Modeling and Analysis of Electrical
      Components and Circuits
    id: '1430332'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Power Systems
    id: '1430342'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Fundamentals of Integrated Circuits and Systems
    id: '1430349'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Communication Networks
    id: '1430356'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Communications Engineering
    id: '1430362'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Automatic Control
    id: '1430377'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Engineering Mechanics
    id: '1430388'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Optional courses of mechanical engineering
    id: '1430404'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Numerical Analysis I
    id: '1430426'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Practical Course in Mathematics
    id: '1430435'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Numerical Analysis II
    id: '1430442'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Computeralgebra
    id: '1430450'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Complex Analysis I
    id: '1430461'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Experimental Physics I (Mechanics and Relativity)
    id: '1430471'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Experimental Physics II (Heat and Electromagnetism)
    id: '1430482'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Introduction to Physics
    id: '1430491'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Physics lab
    id: '1430505'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: General Introduction to Philosophy
    id: '1430538'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Theory of Argumentation
    id: '1430561'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Practical Philosophy
    id: '1430566'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Computability and Complexity
    id: '1430619'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Mathematical Logic I
    id: '1430628'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Formal Systems, Automata, Processes
    id: '1430635'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Data Structures and Algorithms
    id: '1430644'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Software Engineering
    id: '1430653'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Introduction to Computer Engineering
    id: '1430663'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: System Programming
    id: '1430672'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Operating Systems and System Software
    id: '1430686'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Linear Algebra
    id: '1430695'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Introduction to Applied Stochastics
    id: '1430703'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Databases and Information Systems
    id: '1430710'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Implementation of Databases
    id: '1430724'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Seminar Computer Science
    id: '1430730'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Software Project Lab
    id: '1430838'
    url: https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/
    facets: []
  - name: Advanced Automata Theory
    id: '1430884'
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          "name": "Practical Course in Mathematics",
          "id": "1430435",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Numerical Analysis II",
          "id": "1430442",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Computeralgebra",
          "id": "1430450",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Complex Analysis I",
          "id": "1430461",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Experimental Physics I (Mechanics and Relativity)",
          "id": "1430471",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Experimental Physics II (Heat and Electromagnetism)",
          "id": "1430482",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Introduction to Physics",
          "id": "1430491",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Physics lab",
          "id": "1430505",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "General Introduction to Philosophy",
          "id": "1430538",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Theory of Argumentation",
          "id": "1430561",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Practical Philosophy",
          "id": "1430566",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Computability and Complexity",
          "id": "1430619",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Mathematical Logic I",
          "id": "1430628",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Formal Systems, Automata, Processes",
          "id": "1430635",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Data Structures and Algorithms",
          "id": "1430644",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Software Engineering",
          "id": "1430653",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Introduction to Computer Engineering",
          "id": "1430663",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "System Programming",
          "id": "1430672",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Operating Systems and System Software",
          "id": "1430686",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Linear Algebra",
          "id": "1430695",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Introduction to Applied Stochastics",
          "id": "1430703",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Databases and Information Systems",
          "id": "1430710",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Implementation of Databases",
          "id": "1430724",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Seminar Computer Science",
          "id": "1430730",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Software Project Lab",
          "id": "1430838",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Advanced Automata Theory",
          "id": "1430884",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Bookkeeping and Managerial Accounting",
          "id": "1430932",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Basic Module Philosophical Propaedeutics",
          "id": "1430939",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Introduction to Numerical Methods and Software",
          "id": "1430950",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Infinite Computations and Games",
          "id": "1430956",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Data Communication",
          "id": "1509365",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Elements of Machine Learning and Data Science",
          "id": "1509575",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "IT-Security",
          "id": "1509607",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Bookkeeping and Managerial Accounting",
          "id": "1531579",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        }
      ]
    },
    {
      "name": "Scientific Integrity",
      "id": "1440206",
      "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
      "areas": []
    },
    {
      "name": "Additional Examinations",
      "id": "1456158",
      "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
      "areas": [
        {
          "name": "Modules",
          "id": "1456159",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Partial Examinations",
          "id": "1456160",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Languages",
          "id": "1456161",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Recognized Partial Examinations",
          "id": "1456650",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        },
        {
          "name": "Competences",
          "id": "1457617",
          "url": "https://sc.informatik.rwth-aachen.de/de/studium/master/informatik/",
          "facets": []
        }
      ]
    }
  ],
  "levels": [
    {
      "name": "1,0 - 95%",
      "id": "10 - 95",
      "level": 10
    },
    {
      "name": "1,3 - 90%",
      "id": "13 - 90",
      "level": 9
    },
    {
      "name": "1,7 - 85%",
      "id": "17 - 85",
      "level": 8
    },
    {
      "name": "2,0 - 80%",
      "id": "20 - 80",
      "level": 7
    },
    {
      "name": "2,3 - 75%",
      "id": "23 - 75",
      "level": 6
    },
    {
      "name": "2,7 - 70%",
      "id": "27 - 70",
      "level": 5
    },
    {
      "name": "3,0 - 65%",
      "id": "30 - 65",
      "level": 4
    },
    {
      "name": "3,3 - 60%",
      "id": "33 - 60",
      "level": 3
    },
    {
      "name": "3,7 - 55%",
      "id": "37 - 55",
      "level": 2
    },
    {
      "name": "4,0 - 50%",
      "id": "40 - 50",
      "level": 1
    }
  ],
  "element_names": [
    {
      "tree": "Study plan",
      "aspect": "Study area",
      "area": "Module",
      "facet": "Module element",
      "level": "Grade"
    }
  ]
}```

### Describe the results you expected

I'd expect to get information about where the error happenend to be able to debug.
May be there is a bug in from_dict that prevents the reading then that would need to be fixed.

The failing line:
```python
            # a mapping type has `.keys()` and `.values()`
            # (see collections.abc)
            ks = _decode_dict_keys(k_type, value.keys(), infer_missing)

therfore IMHO needs to check the type before or when trying to decode the dict. If it's not a dict there should be a proper reaction with debug info.

Python version you are using

Python 3.10.13

Environment description

dataclasses-json==0.6.1

WolfgangFahl commented 10 months ago

i changed the code to

       # a mapping type has `.keys()` and `.values()`
            # (see collections.abc)
            if not isinstance(value,dict):
                print("Houston we got a problem!")
            ks = _decode_dict_keys(k_type, value.keys(), infer_missing)

to be able to set a breakpoint and see the culprit data- then the fix is easy - so this is more a feature request then a bug report. Making the code handle the non -dict situation would be helpful

@@ -118,15 +118,14 @@ class TestModule(Basetest):
             CompetenceLevel(name="3,7 - 55%", level=2),
             CompetenceLevel(name="4,0 - 50%", level=1),
         ]
-        tree.element_names = (
-            {
-                "tree": "Study plan",
-                "aspect": "Study area",
-                "area": "Module",
-                "facet": "Module element",
-                "level": "Grade",
-            },
-        )
+        tree.element_names = {
+            "tree": "Study plan",
+            "aspect": "Study area",
+            "area": "Module",
+            "facet": "Module element",
+            "level": "Grade",
+        }
george-zubrienko commented 10 months ago

@WolfgangFahl if you can submit a PR and add some units to improve the error handling, I'd be happy to review. Otherwise, there is a bit too much context details here, if you can narrow the example down to fewer lines of code it would be great

WolfgangFahl commented 10 months ago

Basically the pattern is if your yaml file is not as specified e.g. you move from a list to a dict and vice versa and then throw the wrong yaml file at the json/yaml pipeline the involved dataclasses-json might choke with one or another python arror since the code assumes perfect input. To make the code more robust it might follow Postel's law a bit more and give hints when things are wrong. Also just styling the code better for debugging would help - then one can at least set a breakpoint to find out what went wrong. I'm busy for the upcoming days but will definitely be willing to supply more details and PRs.