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llm-connect/llm_connect/exceptions.py
Bernd Worsch f76a58d6e9
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refactor: simplify post-WP-0002 cleanup
- Remove redundant async_execute_prompt overrides from OpenAI/Gemini/OpenRouter
  adapters (identical to base class default — asyncio import also removed)
- Cache prompt.split() result in MockLLMAdapter to avoid double evaluation
- Promote deferred LLMBudgetExceededError imports to module level in
  models.py and adapter.py (no circular dependency)
- Auto-populate context dict in LLMBudgetExceededError.__init__ so callers
  need not pass redundant context= kwarg

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-01 22:30:00 +00:00

112 lines
3.0 KiB
Python

"""
LLM-specific exceptions.
"""
from typing import Optional, Dict, Any
class LLMError(Exception):
"""Base exception for all LLM operations."""
def __init__(
self,
message: str,
cause: Optional[Exception] = None,
context: Optional[Dict[str, Any]] = None,
):
super().__init__(message)
self.cause = cause
self.context = context or {}
if cause:
self.__cause__ = cause
def __str__(self) -> str:
base = super().__str__()
if self.context:
ctx = ", ".join(f"{k}={v}" for k, v in self.context.items())
base = f"{base} [Context: {ctx}]"
return base
class LLMConfigurationError(LLMError):
"""Missing API key, invalid model name, or bad provider config."""
pass
class LLMAPIError(LLMError):
"""HTTP-level failure from an LLM provider API.
Attributes:
status_code: HTTP status code (e.g. 500, 502).
response_body: Raw response body text, if available.
"""
def __init__(
self,
message: str,
status_code: int = 0,
response_body: str = "",
cause: Optional[Exception] = None,
context: Optional[Dict[str, Any]] = None,
):
super().__init__(message, cause=cause, context=context)
self.status_code = status_code
self.response_body = response_body
class LLMRateLimitError(LLMAPIError):
"""429 Too Many Requests from the provider."""
pass
class LLMTimeoutError(LLMError):
"""Request or subprocess exceeded the configured timeout."""
pass
class LLMBudgetExceededError(LLMError):
"""Token budget cap exceeded during a call or delegation chain.
Attributes:
total: The configured token cap.
spent: Tokens already consumed before this call.
requested: Tokens this call would have consumed.
"""
def __init__(
self,
message: str,
total: int = 0,
spent: int = 0,
requested: int = 0,
cause: Optional[Exception] = None,
context: Optional[Dict[str, Any]] = None,
):
if context is None:
context = {"total": total, "spent": spent, "requested": requested}
super().__init__(message, cause=cause, context=context)
self.total = total
self.spent = spent
self.requested = requested
class LLMSubprocessError(LLMError):
"""Claude Code CLI subprocess failed.
Attributes:
return_code: Process exit code.
stderr: Captured stderr text.
"""
def __init__(
self,
message: str,
return_code: int = 1,
stderr: str = "",
cause: Optional[Exception] = None,
context: Optional[Dict[str, Any]] = None,
):
super().__init__(message, cause=cause, context=context)
self.return_code = return_code
self.stderr = stderr