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semantic_llm_cache/exceptions.py

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+"""Custom exceptions for prompt-cache."""
+
+
+class PromptCacheError(Exception):
+    """Base exception for prompt-cache errors."""
+
+    pass
+
+
+class CacheBackendError(PromptCacheError):
+    """Exception raised when backend operations fail."""
+
+    pass
+
+
+class CacheSerializationError(PromptCacheError):
+    """Exception raised when serialization/deserialization fails."""
+
+    pass
+
+
+class CacheNotFoundError(PromptCacheError):
+    """Exception raised when cache entry is not found."""
+
+    pass