python-readchar: termios.error: (25, 'Inappropriate ioctl for device')

Greetings!

When I try to run the program below, It gives Error as in the title. Image is here: http://imgur.com/9no96dh

import readchar

while True:
    print "Press 'A' to Start the recording"
    print "      'Z' to Stop the recording"
    print "      'Enter' to quit the program..."

    # Read a key
    key = readchar.readkey()
    if(key == 'A'):
        print "Started Recording..."
    elif(key == 'Z'):
        print "Stopped Recording..."
    elif(key == '\r'):
        print "Exiting..."
        break
    else:
        print "Please Use only allowed keys: A, Z, Enter!" 

I tried to do just run readchar.readkey() in python console, It worked fine there. But when I tried to do it as above, this error occurred. Any help will be greatly appreciated.

Note: I’m on Ubuntu Gnome x86_64. Kernel: 3.19.* v. Using Python 2.7.

Thanks & Regards, inblueswithu