import sys

# Iterate through the modules in sys.modules
for module_name, module in sys.modules.items():
    # Check if the module has a loader attribute
    if hasattr(module, '__loader__'):
        loader = module.__loader__
        # Determine the type of loader
        if type(loader).__name__ == 'SourceFileLoader':
            print(f"Module '{module_name}' has a source loader.")
        elif type(loader).__name__ == 'BuiltinImporter':
            print(f"Module '{module_name}' has a built-in loader.")
        elif type(loader).__name__ == 'ExtensionFileLoader':
            print(f"Module '{module_name}' has an extension loader.")