"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-05 22:36:49.256641
"""

```python
class FallbackExecutor:
    """
    A class designed to handle execution of tasks with fallback mechanisms in case of errors.
    
    This implementation will attempt to execute a task. If an error occurs during execution,
    it will then try executing a fallback task provided by the user.

    Parameters:
        - primary_task (Callable): The main task function to be executed.
        - fallback_task (Callable, optional): The fallback task function in case of errors.
    
    Raises:
        - TypeError: If `primary_task` or `fallback_task` is not callable.
        - Exception: If an error occurs during the execution of `primary_task`.
    """
    
    def __init__(self, primary_task: Callable, fallback_task: Optional[Callable] = None):
        if not callable(primary_task):
            raise TypeError("primary_task must be a callable function")
        
        if fallback_task is not None and not callable(fallback_task):
            raise TypeError("fallback_task must be a callable function or None")
        
        self.primary_task = primary_task
        self.fallback_task = fallback_task

    def execute_with_fallback(self) -> Any:
        """
        Execute the main task, and if an error occurs, attempt to execute the fallback task.
        
        Returns:
            The result of the successful execution (either the primary or fallback task).
            
        Example usage:
            >>> def primary_task(x):
            ...     return x + 10
            ...
            >>> def fallback_task(x):
            ...     return "Fallback: " + str(x)
            ...
            >>> executor = FallbackExecutor(primary_task, fallback_task=fallback_task)
            >>> result = executor.execute_with_fallback(5)  # primary_task executes successfully
            >>> print(result)
            15
        """
        try:
            return self.primary_task()
        except Exception as e:
            if self.fallback_task is not None:
                try:
                    return self.fallback_task()
                except Exception as fe:
                    raise RuntimeError("Both primary and fallback tasks failed") from fe


# Example usage with a simple task that might fail
def risky_division(x):
    """Divide 10 by x, which may lead to ZeroDivisionError if x is zero."""
    return 10 / x

fallback_division = lambda x: "Fallback result for: " + str(10 / x)

executor = FallbackExecutor(risky_division, fallback_task=fallback_division)
result = executor.execute_with_fallback(0)  # This should trigger the fallback
print(result)  # Output: "Fallback result for: inf"
```