tqdm progressbar breaks with MongoTrials

Hello,

I noticed that the progressbar when using MongoTrials is almost useless as it advances at one iteration a second regardless of the actual progress and then it makes as much (pseudo)iterations as it takes to complete the task.

MWE:

hyperop_mongo.py

from hyperopt import fmin, tpe, hp, Trials
from hyperopt.mongoexp import MongoTrials
import hyperopt_to_optim

trials = MongoTrials('mongo://localhost:1234/foo_db/jobs', exp_key='exp13')

best = fmin(hyperopt_to_optim.obj, hp.uniform('x', -2, 2), trials=trials, algo=tpe.suggest, max_evals=20)

hyperopt_to_optim.py

import time
import math
def obj(x):
    time.sleep(3)
    return math.sin(x)

output:

77it [01:17,  1.02s/it, best loss: -0.9947311913502885]

(instead of 20 iterations, also there might be another issue.. why does it take so much more than 60 seconds? )

to run you need to add the directory containing hyperopt_to_optim.py to PYTHONPATH for hyperopt-mongo-worker