Opening an interactive figure doesn't work on MacOSX backend with matplotlib v2.1 #9489
Opening an interactive figure with the MacOSX backend on matplotlib v2.1.0 results in a
Code for reproduction
In : import matplotlib.pyplot as plt In : plt.ion() In : fig, ax = plt.subplots()
Open an interactive figure. This worked on matplotlib v2.0.2
Thanks for reporting this and sorry for the bug!
Please ping to have this re-opened if you can reproduce this on the v2.1.x or master branches.