"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-08 18:56:39.149228
"""

```python
from typing import Callable, Any

class FallbackExecutor:
    """
    A class that implements a fallback mechanism for executing functions.
    
    This is useful when you want to provide a default or backup function 
    to use if an initial attempt at executing a function fails or returns 
    an unexpected result.

    :param primary: The main function to execute
    :param fallbacks: A list of functions to try in order if the primary fails
    """
    
    def __init__(self, primary: Callable[..., Any], fallbacks: list[Callable[..., Any]]):
        self.primary = primary
        self.fallbacks = fallbacks
    
    def _execute(self, function: Callable, *args, **kwargs) -> Any:
        """Execute the given function with arguments and return its result."""
        try:
            return function(*args, **kwargs)
        except Exception as e:
            print(f"Error executing {function.__name__}: {e}")
    
    def execute(self, *args, **kwargs) -> Any:
        """
        Attempt to execute the primary function, fallback if it fails.
        
        :param args: Arguments for the functions
        :param kwargs: Keyword arguments for the functions
        :return: The result of the successfully executed function or None
        """
        result = self._execute(self.primary, *args, **kwargs)
        if result is not None:
            return result
        
        # Try fallbacks in order
        for fallback in self.fallbacks:
            result = self._execute(fallback, *args, **kwargs)
            if result is not None:
                break
        
        return result

# Example usage
def primary_function(x: int) -> int:
    """Divide x by 2."""
    return x // 2

def fallback1_function(x: int) -> int:
    """Add 1 to x and divide by 3."""
    return (x + 1) // 3

def fallback2_function(x: int) -> int:
    """Subtract 1 from x and double it."""
    return (x - 1) * 2

# Create a FallbackExecutor instance
executor = FallbackExecutor(primary=primary_function, fallbacks=[fallback1_function, fallback2_function])

# Test the functionality
result1 = executor.execute(4)
print(f"Result for primary function: {result1}")

result2 = executor.execute(0)  # Primary will raise ZeroDivisionError due to division by zero
print(f"Result for fallback (primary failed): {result2}")
```