Problem

RenderCVUserError, RenderCVUserValidationError, and RenderCVInternalError in src/rendercv/exception.py are decorated with @dataclass and inherit from ValueError/RuntimeError. When raised with the keyword form actually used throughout the codebase (e.g. RenderCVUserError(message=...)), str(exc) returns '' and exc.args is () because dataclass-generated __init__ never calls super().__init__(message).

Steps

from rendercv.exception import RenderCVUserError
try:
    raise RenderCVUserError(message='YAML file not found')
except RenderCVUserError as e:
    print(repr(e.args), repr(str(e)))

Expected

('YAML file not found',) 'YAML file not found'

Actual

() ''

Any path where these exceptions escape the handle_user_errors decorator (library use, uncaught bubbling, third-party logging) shows a nameless RenderCVUserError in the traceback with no message. Real call sites use kw form: src/rendercv/cli/render_command/run_rendercv.py:188,196.

Environment

rendercv 2.8 (pyproject.toml), Python >=3.12. File: src/rendercv/exception.py:40-70.

Fix sketch

Add __post_init__ calling super().__init__(self.message), or drop @dataclass and use plain __init__.

Thanks for maintaining rendercv/rendercv!