我想同时使用TimeoutError和tqdm进度条执行多处理。
我已经成功地尝试了它们。我应该如何结合逻辑?
目标:
进度栏应随每个imap_unordered调用更新
应检查每个进程的TimeoutError
我已经尝试了百万种方法来组合它们(未显示)。每次我用tqdm包装imap_unordered调用时,都无法访问超时的“ res.next”方法。
from multiprocessing import Pool, TimeoutError
from tqdm import tqdm
def runner(obj):
obj.go()
return obj
def dispatch(objs):
with Pool() as pool:
newObjs = list(tqdm(pool.imap_unordered(runner, objs), total=len(objs)))
# need to find a way to integrate TimeoutError into progress bar
# I've tried this a million ways using multiprocessing
# try:
# res.next(timeout=10)
# except TimeoutError:
# raise
return newObjs
代码非常适合进度条。需要跟踪是否有任何进程超过超时。
答案 0 :(得分:0)
您可以分配没有迭代器的进度条,并使用update()
手动更新。
from multiprocessing import Pool, TimeoutError as mpTimeoutError
from tqdm import tqdm
def runner(obj):
obj.go()
return obj
def dispatch(objs):
with Pool() as pool:
it = pool.imap_unordered(runner, objs)
pbar = tqdm(total=len(objs))
new_objs = []
while True:
try:
new_objs.append(it.next(timeout=10))
pbar.update()
except mpTimeoutError:
raise
except StopIteration:
# signal that the iterator is exhausted
pbar.close()
break
return new_objs