"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 16:14:35.580293
"""

```python
from typing import Callable, Optional


class FallbackExecutor:
    """
    A class for creating a fallback executor that can handle limited error recovery.

    This class is designed to execute a primary function and provide a fallback in case of errors.
    The fallback function will be executed if the primary function raises an exception or returns
    a specific error code. The `execute` method handles the execution logic, trying both functions
    as necessary.

    :param primary: The primary function to execute.
    :type primary: Callable[..., Any]
    :param fallback: The fallback function to execute in case of errors from the primary function.
    :type fallback: Callable[..., Any]
    """

    def __init__(self, primary: Callable, fallback: Optional[Callable] = None) -> None:
        self.primary = primary
        self.fallback = fallback

    def _execute(self, func: Callable, *args, **kwargs) -> Any:
        """
        Execute the given function with provided arguments.

        :param func: The function to execute.
        :type func: Callable[..., Any]
        :return: The result of the executed function or None if an error occurred.
        :rtype: Any
        """
        try:
            return func(*args, **kwargs)
        except Exception as e:
            print(f"Error executing {func.__name__}: {e}")
            return None

    def execute(self) -> Any:
        """
        Execute the primary function and handle errors by attempting to run the fallback function.
        
        :return: The result of the executed function or None if both failed.
        :rtype: Any
        """
        result = self._execute(self.primary)
        if result is not None:
            return result

        if self.fallback is not None:
            print("Executing fallback function.")
            return self._execute(self.fallback)

        return None


# Example usage
def primary_function(x: int) -> Optional[int]:
    """Divide x by 0 to simulate a division error."""
    try:
        return 10 / (x - 5)
    except ZeroDivisionError as e:
        print(f"Caught {type(e).__name__}: {e}")
        # Return None to indicate an error occurred
        return None


def fallback_function(x: int) -> int:
    """Fallback function that returns a default value."""
    print("Using fallback function.")
    return 50 - x

fallback_executor = FallbackExecutor(primary_function, fallback_function)

# Test the executor with normal and erroneous inputs
print(fallback_executor.execute(10))  # Should succeed normally
print(fallback_executor.execute(5))   # Should use fallback due to error
```

This code provides a basic implementation of a `FallbackExecutor` class that can be used for limited error recovery in Python. The example usage demonstrates how it works with both successful and error-prone function calls.