Python 3.9.7 is being unsympathetic

[gmuloc]

Tested for anta 0.12.0 and 0.10.0

The error is reproducible in Python 3.9.7 - not present in python 3.9.13.
not root caused yet.

probably need to narrow down the list of versions.

anta --help                                                                                                                                                                 3.9.13    14:46:37 
Traceback (most recent call last):
  File "/Users/guillaumemulocher/py39/venv/bin/anta", line 5, in <module>
    from anta.cli import cli
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/anta/cli/__init__.py", line 17, in <module>
    from anta.cli.check import check as check_command
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/anta/cli/check/__init__.py", line 9, in <module>
    from anta.cli.check import commands
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/anta/cli/check/commands.py", line 15, in <module>
    from anta.catalog import AntaCatalog
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/anta/catalog.py", line 21, in <module>
    from anta.models import AntaTest
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/anta/models.py", line 58, in <module>
    class AntaTemplate(BaseModel):
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/pydantic/_internal/_model_construction.py", line 183, in __new__
    set_model_fields(cls, bases, config_wrapper, types_namespace)
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/pydantic/_internal/_model_construction.py", line 418, in set_model_fields
    fields, class_vars = collect_model_fields(cls, bases, config_wrapper, types_namespace, typevars_map=typevars_map)
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/pydantic/_internal/_fields.py", line 99, in collect_model_fields
    type_hints = get_cls_type_hints_lenient(cls, types_namespace)
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/pydantic/_internal/_typing_extra.py", line 212, in get_cls_type_hints_lenient
    hints[name] = eval_type_lenient(value, globalns, localns)
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/pydantic/_internal/_typing_extra.py", line 224, in eval_type_lenient
    return typing._eval_type(value, globalns, localns)  # type: ignore
  File "/Users/guillaumemulocher/.pyenv/versions/3.9.7/lib/python3.9/typing.py", line 290, in _eval_type
    return t._evaluate(globalns, localns, recursive_guard)
  File "/Users/guillaumemulocher/.pyenv/versions/3.9.7/lib/python3.9/typing.py", line 551, in _evaluate
    eval(self.__forward_code__, globalns, localns),
  File "<string>", line 1, in <module>
  File "/Users/guillaumemulocher/py39/venv/lib/python3.9/site-packages/pydantic/types.py", line 211, in conint
    annotated_types.Interval(gt=gt, ge=ge, lt=lt, le=le),
TypeError: Interval() takes no arguments

proposed solutions:

• try / catch around the failing import(s) for pydantic conint and state that we don't support specific python versions that we need to check.
• remove conint and use Field (and check it works in 3.9.7) - conint will be deprecated in pydantic 3.0.0 anyway

[carl-baillargeon]

constr is also impacted by this.

Traceback (most recent call last):
  File "/home/carlbaillargeon/.pyenv/versions/.anta-test/bin/anta", line 5, in <module>
    from anta.cli import cli
  File "/home/carlbaillargeon/git_projects/anta/anta/cli/__init__.py", line 17, in <module>
    from anta.cli.check import check as check_command
  File "/home/carlbaillargeon/git_projects/anta/anta/cli/check/__init__.py", line 9, in <module>
    from anta.cli.check import commands
  File "/home/carlbaillargeon/git_projects/anta/anta/cli/check/commands.py", line 17, in <module>
    from anta.cli.utils import catalog_options
  File "/home/carlbaillargeon/git_projects/anta/anta/cli/utils.py", line 20, in <module>
    from anta.inventory import AntaInventory
  File "/home/carlbaillargeon/git_projects/anta/anta/inventory/__init__.py", line 21, in <module>
    from anta.inventory.models import AntaInventoryInput
  File "/home/carlbaillargeon/git_projects/anta/anta/inventory/models.py", line 21, in <module>
    class AntaInventoryHost(BaseModel):
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/envs/.anta-test/lib/python3.9/site-packages/pydantic/_internal/_model_construction.py", line 178, in __new__
    set_model_fields(cls, bases, config_wrapper, types_namespace)
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/envs/.anta-test/lib/python3.9/site-packages/pydantic/_internal/_model_construction.py", line 452, in set_model_fields
    fields, class_vars = collect_model_fields(cls, bases, config_wrapper, types_namespace, typevars_map=typevars_map)
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/envs/.anta-test/lib/python3.9/site-packages/pydantic/_internal/_fields.py", line 122, in collect_model_fields
    type_hints = get_cls_type_hints_lenient(cls, types_namespace)
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/envs/.anta-test/lib/python3.9/site-packages/pydantic/_internal/_typing_extra.py", line 212, in get_cls_type_hints_lenient
    hints[name] = eval_type_lenient(value, globalns, localns)
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/envs/.anta-test/lib/python3.9/site-packages/pydantic/_internal/_typing_extra.py", line 224, in eval_type_lenient
    return eval_type_backport(value, globalns, localns)
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/envs/.anta-test/lib/python3.9/site-packages/pydantic/_internal/_typing_extra.py", line 240, in eval_type_backport
    return typing._eval_type(  # type: ignore
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/lib/python3.9/typing.py", line 290, in _eval_type
    return t._evaluate(globalns, localns, recursive_guard)
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/lib/python3.9/typing.py", line 551, in _evaluate
    eval(self.__forward_code__, globalns, localns),
  File "<string>", line 1, in <module>
  File "/home/carlbaillargeon/.pyenv/versions/3.9.7/envs/.anta-test/lib/python3.9/site-packages/pydantic/types.py", line 785, in constr
    StringConstraints(
TypeError: StringConstraints() takes no arguments

[carl-baillargeon]

Resolved in #476