安装

pip install progressbar2 -i https://pypi.douban.com/simple

使用

方法1

import progressbar
# 未知长度：max_value=progressbar.UnknownLength
with progressbar.ProgressBar(max_value=len(val_loader)) as bar:
    for i, (input, target) in enumerate(val_loader):
        pass
        bar.update(i)

方法2

import progressbar

for i in progressbar.progressbar(range(100)):
    pass

方法3

import progressbar

for i in progressbar.progressbar(range(100), redirect_stdout=True):
    print('Some text', i)
    pass

效果

39% (4592 of 11702) |####### | Elapsed Time: 0:05:56 ETA: 0:09:15