unredoable

Python package providing object-specific undoing & redoing functionality through wrapper class

Download

pip install unredoable

Usage

from unredoable import Unredoable

class StateManager:
    def __init__(self, state_variable):
        self.unredoable_state_variable = Unredoable(state_variable, max_stack_depths=10, craft_deep_copies=False)
        
        # state_variable may be of whatever type, whether custom or not, 
        # the sole restraint it's subject to, is that is needs to implement 
        # either __copy__ or __deepcopy__, depending on the passed 
        # 'craft_deep_copies' parameter
        
    def alter_state_variable(self):
        self.unredoable_state_variable.push_state()
        
        self.unredoable_state_variable.obj += 1

if __name__ == '__main__':
    manager = StateManager(69)
    
    manager.alter_state_variable()
    manager.alter_state_variable()
    
    manager.unredoable_state_variable.undo()  # unredoable_state_variable = 70
    manager.unredoable_state_variable.redo()  # unredoable_state_variable = 71

Author

Janek Zangenberg

License

MIT