"""Create fallback_executor
Generated by Phi-Octopus Eden
2025-11-06 11:20:09.121022
"""

```python
from typing import Callable, Any


class FallbackExecutor:
    """
    A class for executing a function with fallback mechanisms.

    This class provides a mechanism to attempt execution of a given callable,
    and if it fails due to an exception, it can either retry the operation or
    execute a fallback callable instead. It also allows setting custom error
    handling logic.
    """

    def __init__(self, primary_callable: Callable[..., Any], max_retries: int = 3):
        """
        Initialize the FallbackExecutor.

        :param primary_callable: The main function to attempt execution.
        :param max_retries: Maximum number of times to retry if an exception occurs (default is 3).
        """
        self.primary_callable = primary_callable
        self.max_retries = max_retries

    def set_fallback(self, fallback_callable: Callable[..., Any]) -> None:
        """
        Set a callable that will be used as the fallback in case of failure.

        :param fallback_callable: The function to use if the primary callable fails.
        """
        self.fallback_callable = fallback_callable
        self.retries_left = self.max_retries

    def execute(self) -> Any:
        """
        Execute the primary callable, and handle exceptions using fallback mechanism.

        If a failure occurs, it will attempt to execute the fallback callable if set,
        otherwise re-raise the exception. It decrements retries_left each time
        an execution is attempted.
        :return: The result of the primary callable or fallback_callable.
        """
        while self.retries_left > 0:
            try:
                return self.primary_callable()
            except Exception as e:
                if hasattr(self, 'fallback_callable'):
                    print(f"Primary function failed with error: {e}")
                    print("Attempting fallback...")
                    result = self.fallback_callable()
                    break
                else:
                    raise e from None
            finally:
                self.retries_left -= 1

        return result


# Example usage:
def primary_function() -> str:
    """A primary function that may fail."""
    # Simulate a failure for demonstration purposes
    if True:  # Change this to False to see the fallback in action
        raise ValueError("Something went wrong!")
    else:
        return "Primary function succeeded!"


def fallback_function() -> str:
    """Fallback function executed if primary_function fails."""
    return "Fallback function succeeded!"


executor = FallbackExecutor(primary_function)
executor.set_fallback(fallback_function)

try:
    result = executor.execute()
    print(result)  # Should fail and use the fallback
except Exception as e:
    print(e)


# Uncommenting the following line will make primary_function succeed, so no fallback is used.
# executor.execute()  # This should work without any issues
```