考えられる回避策は次のとおりです
def func(x):
time.sleep(random.randint(1, 10))
return x
def text_progessbar(seq, total=None):
step = 1
tick = time.time()
while True:
time_diff = time.time()-tick
avg_speed = time_diff/step
total_str = 'of %n' % total if total else ''
print('step', step, '%.2f' % time_diff,
'avg: %.2f iter/sec' % avg_speed, total_str)
step += 1
yield next(seq)
all_bar_funcs = {
'tqdm': lambda args: lambda x: tqdm(x, **args),
'txt': lambda args: lambda x: text_progessbar(x, **args),
'False': lambda args: iter,
'None': lambda args: iter,
}
def ParallelExecutor(use_bar='tqdm', **joblib_args):
def aprun(bar=use_bar, **tq_args):
def tmp(op_iter):
if str(bar) in all_bar_funcs.keys():
bar_func = all_bar_funcs[str(bar)](tq_args)
else:
raise ValueError("Value %s not supported as bar type"%bar)
return Parallel(**joblib_args)(bar_func(op_iter))
return tmp
return aprun
aprun = ParallelExecutor(n_jobs=5)
a1 = aprun(total=25)(delayed(func)(i ** 2 + j) for i in range(5) for j in range(5))
a2 = aprun(total=16)(delayed(func)(i ** 2 + j) for i in range(4) for j in range(4))
a2 = aprun(bar='txt')(delayed(func)(i ** 2 + j) for i in range(4) for j in range(4))
a2 = aprun(bar=None)(delayed(func)(i ** 2 + j) for i in range(4) for j in range(4))