1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
"""# Indeterminate progress bar
Example of an indeterminate progress bar for a long running computation
of unknown time.
"""
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)
|
