Thanks, that is great. You may also want to add to the documentation the integration withtqdm.

fromtqdmimporttqdmnum_generations=100withtqdm(total=num_generations)aspbar:ga_instance=pygad.GA(num_generations=num_generations,        ...,on_generation=lambda_:pbar.update(1),    )ga_instance.run()

That is really helpful! Thank you.

I will definitely refer to this discussion in the documentation. It is so fast in monitoring the progress compared to printing the the generation number in a new function.

Please let me know if you have any other suggestion or bugs to fix.

Hi & thanks for this great tool.
The Progress bar is a great feature but when using the progress bar i can no longer save the results with the save() fct.
I get this error message:
pickle.dump(self, file)
_pickle.PicklingError: Can't pickle <function at 0x1232a59d0>: attribute lookup onmain failed

Regards
André

Thanks@dayd! The issue is solved by defining a function. The following code works:

importpygadimportnumpyimporttqdmequation_inputs= [4,-2,3.5]desired_output=44deffitness_func(solution,solution_idx):output=numpy.sum(solution*equation_inputs)fitness=1.0/ (numpy.abs(output-desired_output)+0.000001)returnfitnessdefon_generation_progress(ga):pbar.update(1)num_generations=100withtqdm.tqdm(total=num_generations)aspbar:ga_instance=pygad.GA(num_generations=num_generations,sol_per_pop=5,num_parents_mating=2,num_genes=len(equation_inputs),fitness_func=fitness_func,on_generation=on_generation_progress)ga_instance.run()ga_instance.plot_result()ga_instance.save("test")

Thanks, that's perfect and works like a charm.
André

I assume that you would have found it already, but since I was looking for the same when arrived to this thread, I leave the link for the future:
https://pygad.readthedocs.io/en/latest/utils.html#user-defined-crossover-mutation-and-parent-selection-operators