Note
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Indeterminate progress bar#
Example of an indeterminate progress bar for a long running computation of unknown time.
Out:
<FunctionGui long_running(sleep_time=5)>
import time
from superqt.utils import thread_worker
from magicgui import magicgui
from magicgui.tqdm import tqdm
@magicgui(call_button=True, layout="horizontal")
def long_running(sleep_time=5):
"""Long running computation with an indeterminate progress bar."""
# Here tqdm is not provided an iterable argument, or the 'total' kwarg
# so it cannot calculate the expected number of iterations
# which means it will create an indeterminate progress bar
with tqdm() as pbar:
# It is best practice to use a separate thread for long running computations
# This makes the function non-blocking, you can still interact with the widget
@thread_worker(connect={"finished": lambda: pbar.progressbar.hide()})
def sleep(secs):
time.sleep(secs)
sleep(sleep_time)
long_running.show(run=True)
Total running time of the script: ( 0 minutes 0.050 seconds)
Download Python source code: progress_indeterminate.py