Source code for kpicalculator.exceptions

# src/kpicalculator/exceptions.py
"""Custom exception hierarchy for KPI Calculator."""



[docs]
class KpiCalculatorError(Exception):
    """Base exception for KPI Calculator."""




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class ValidationError(KpiCalculatorError):
    """Raised when input validation fails."""




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class SecurityError(KpiCalculatorError):
    """Raised when security validation fails."""




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class DataSourceError(KpiCalculatorError):
    """Raised when data source loading fails."""




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class CalculationError(KpiCalculatorError):
    """Raised when KPI calculation fails."""




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class MathematicalError(CalculationError):
    """Raised when mathematical constraints are violated."""




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class ExportError(KpiCalculatorError):
    """Raised when result export fails."""




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class ConfigurationError(KpiCalculatorError):
    """Raised when configuration is invalid."""




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class DatabaseError(DataSourceError):
    """Raised when database operations fail."""




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class CredentialError(SecurityError):
    """Raised when credential loading or validation fails."""