Import queue ImportError: No module named queue

krisna@krisna-desktop:~/ros_coba$ rosrun rosserial_arduino serial_node.py /devttyUSB0
Traceback (most recent call last):
File “/home/krisna/ros_coba/src/rosserial/rosserial_arduino/nodes/serial_node.py”, line 37, in
from rosserial_arduino import SerialClient
File “/home/krisna/ros_coba/devel/lib/python2.7/dist-packages/rosserial_arduino/init.py”, line 34, in
exec(__fh.read())
File “”, line 1, in
File “/home/krisna/ros_coba/src/rosserial/rosserial_arduino/src/rosserial_arduino/SerialClient.py”, line 43, in
from rosserial_python import SerialClient as _SerialClient
File “/home/krisna/ros_coba/devel/lib/python2.7/dist-packages/rosserial_python/init.py”, line 34, in
exec(__fh.read())
File “”, line 1, in
File “/home/krisna/ros_coba/src/rosserial/rosserial_python/src/rosserial_python/SerialClient.py”, line 41, in
import queue
ImportError: No module named queue

What the problem ?

Hello,

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What product or framework is this relating to?