Also related to #611

Are there any workarounds around this? I tried wrapping the code under a try/except block and closing pbar in case of an exception but it didn't seem to solve the issue

Yeah, interesting behavior. It seems like if an exception gets triggered at any point, inner progressbars get spawned on new lines instead of staying on the previous line.

@fabianp you mean this doesn't work for you?

try:
    with tqdm(...) as t:
        for i in t:
            ...
except KeyboardInterrupt:
    t.close()
    raise
t.close()

Any further thoughts on this?

I've copied and pasted this hundreds of times now... this gets even worse if you actually need direct access to progressbar object, then you have to use contextmanagers etc. Feels like something of the sort should really be hard-baked into tqdm itself?

def tqdm_iter(iterable):
    pbar = tqdm.tqdm(iterable)
    try:
        yield from pbar
    finally:
        pbar.close()

from tqdm import tqdm as tqdm

worked for me

It should be exception safe (tqdm>=4.45.0 or even better tqdm>=4.50.0). You don't need to wrap in try/except/finally.

It's just built-in thread safety which sometimes needs to be manually dealt with (maybe should be different issue).