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July 30, 2025 23:53
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Python logger: In-place updating progress bar
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import time | |
import logging | |
from tqdm import tqdm | |
LOG = logging.getLogger(__name__) | |
log_interval = 5 | |
cursor_up = r'\033[A' # CSI -> A (Cursor up) https://en.wikipedia.org/wiki/ANSI_escape_code | |
if __name__ == '__main__': | |
logging.basicConfig() | |
LOG.info('First line') | |
with tqdm( | |
range(1, 100), | |
desc='Test progress bar', | |
bar_format='{l_bar}{bar:15}{r_bar}{bar:-10b}', | |
file=open(os.devnull, 'w') | |
) as pbar: | |
for i, val in enumerate(pbar): | |
if i == 0: | |
LOG.info(str(pbar)) | |
elif i % log_interval == 0: | |
LOG.info(f'{cursor_up}{str(pbar)}') | |
time.sleep(0.08) | |
LOG.info(f'{cursor_up}{str(pbar)}') |
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