Tqdm
Create progress bars for loops
tqdm is a nice and easy way to create progress bars for your loops.
Trivia: tqdm means “progress” in Arabic (taqadum, تقدّم) and is an abbreviation for “I love you so much” in Spanish (te quiero demasiado).
Install
pip install tqdm
or
conda install tqdm
Basic usages
Import
in a Python script: from tqdm import tqdm
in Jupyter notebook: from tqdm.notebook import tqdm
To automatically choose between console or notebook versions: from tqdm.auto import tqdm
Simple loop
for i in tqdm(range(10000)):
pass
76%|████████████████████████████ | 7568/10000 [00:33<00:10, 229.00it/s]
Wrap an iterator
with tqdm(range(10000), total=10000) as pbar:
for n, i in enumerate(pbar):
pass
Monitor values within the progress bar
You should avoid printing messages with an active tqdm progress bar since it can mess with the display. To monitor values throughout the iterations you can use set_postfix:
from time import sleep
with tqdm(range(10000), total=10000) as pbar:
for n, i in enumerate(pbar):
sleep(0.1)
pbar.set_postfix({'n x i': f'{n*i}'})
17%|█▋ | 1675/10000 [00:20<01:40, 82.46it/s, n x i=2802276]