getpass.getpass() hangs on ipython notebook

Question

I am using very simple code on ipython notebook for user to input password. Command hangs after user inputs the password. Here is my code sample -

import getpass

try:
    p = getpass.getpass()
except Exception as error:
    print('ERROR', error)
else:
    print('Password entered:', p)

I tried raw_input() as well, it hangs exactly the same way.

try:
    p = raw_input()
except Exception as error:
    print('ERROR', error)
else:
    print('Password entered:', p)

Any idea what's the solution for this.

I am running jupyter notebook on AWS server. Here are the version details -

    Python 2.7.13 |
    Anaconda 2.5.0 (64-bit)| (default, Dec 20 2016, 23:09:15) 
    GCC 4.4.7 20120313 
    Red Hat 4.4.7-1
    IPython.__version__ '4.0.3'