Raspberry Pi 3 pyaduio does not detect any devices
The above issue was happening with Raspberry NOOBS image.
I ended up downloading the RASPBIAN image and finally it is working though pyaudio is printing too many warning messages.
I have installed pyaudio (latest as of today Oct 16, 2017) in my Raspberry PI 3 with "sudo pip3 install pyaudio". I am running "python3" for the code below:

import pyaudio

p = pyaudio.PyAudio()
print("Number of devices={}".format(p.get_device_count()))


This prints Number of devices=0
Does anyone have the same problem? Need help to resolve this issue.
Additional info: "lsusb" prints all the devices. 
I am able to see the device in alsamixer. I am able to test that device works. Looks like pyaudio & python3 may have something to do.