Description

Hello, 2 progress bars are printed in my jupyter notebook.
If I use a simple example I get this:

Code

bar = progressbar.ProgressBar()
for i in bar(range(100)):
    time.sleep(0.02)

100% (100 of 100) |##########################################################################################################################| Elapsed Time: 0:00:02 Time: 0:00:02  1% (1 of 100) |#                                                                                                                           | Elapsed Time: 0:00:00 ETA:  0:00:00

Versions

I'm using Ubuntu 14.04.5 LTS
and python 2.7.12 |Continuum Analytics, Inc.| (default, Jul 2 2016, 17:42:40) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]
progressbar2==3.12.0
ipykernel==4.5.2
ipython==5.1.0
ipython-genutils==0.1.0
ipywidgets==5.2.2
jupyter==1.0.0
jupyter-client==4.4.0
jupyter-console==5.0.0
jupyter-core==4.2.1