Tqdm: jupyterlab start new lines while setting the param leave=False

[catchlove666]

I use tqdm.notebook.tqdm in two loops. When I set the param leave=True in the seconde loop, it always start a new line as it run over the loop.

[catchlove666]

Here I paste my code:

`from tqdm import notebook
import time

for i in notebook.tqdm(range(10)):
for j in notebook.tqdm(range(10), leave=False, desc='Second Loop',position=-1,):
time.sleep(0.05)`

[e-dorigatti]

This is an issue with ipywidgets. I opened an issue there

[casperdcl]

duplicate of #433