NotImplementedError: helpers.py line 217, in is_generic

[fatemehramezani]

Dear all,
I tried to install dbt and use it in Visual Code but I got an error:

 As of v1.0.0, `pip install dbt` is no longer supported.
      Instead, please use one of the following.
     
      **To use dbt with your specific database, platform, or query engine:**
     
          pip install dbt-<adapter>
     
          See full list: https://docs.getdbt.com/docs/available-adapters
     
      **For developers of integrations with dbt Core:**
     
          pip install dbt-core

Then, I tried to install dbt-core and says it is ok:

Requirement already satisfied: future in c:\program files\python311\lib\site-packages (from parsedatetime!=2.5,!=2.6,>=2.1->agate<1.6.4,>=1.6->dbt-core) (0.18.2)
Requirement already satisfied: text-unidecode>=1.3 in c:\program files\python311\lib\site-packages (from python-slugify>=1.2.1->agate<1.6.4,>=1.6->dbt-core) (1.3)

But it looks dbt is not installed properly and got this error:

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Program Files\Python311\Scripts\dbt.exe\__main__.py", line 4, in <module>
  File "C:\Program Files\Python311\Lib\site-packages\dbt\main.py", line 3, in <module>
    from dbt.logger import log_cache_events, log_manager
  File "C:\Program Files\Python311\Lib\site-packages\dbt\logger.py", line 17, in <module>
    from dbt.dataclass_schema import dbtClassMixin
  File "C:\Program Files\Python311\Lib\site-packages\dbt\dataclass_schema.py", line 37, in <module>
    class dbtClassMixin(DataClassDictMixin, JsonSchemaMixin):
  File "C:\Program Files\Python311\Lib\site-packages\mashumaro\mixins\dict.py", line 16, in __init_subclass__
    builder.add_from_dict()
  File "C:\Program Files\Python311\Lib\site-packages\mashumaro\core\meta\builder.py", line 419, in add_from_dict
    dialects_feature = self.is_code_generation_option_enabled(
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Program Files\Python311\Lib\site-packages\mashumaro\core\meta\builder.py", line 594, in is_code_generation_option_enabled
    type_name(ancestor)
  File "C:\Program Files\Python311\Lib\site-packages\mashumaro\core\meta\helpers.py", line 150, in type_name
    elif is_generic(t) and not is_type_origin:
         ^^^^^^^^^^^^^
  File "C:\Program Files\Python311\Lib\site-packages\mashumaro\core\meta\helpers.py", line 217, in is_generic
    raise NotImplementedError
NotImplementedError

Do you have any idea about it?

[jtcohen6]

dbt-core does not yet support Python 3.11; we're working on it for the next release! #6147

[KunjPathak12]

mine is 3.10 but raises the same error