[python] ImportError: No module named 'Queue'

I am trying to import requests module, but I got this error my python version is 3.4 running on ubuntu 14.04

>>> import requests
Traceback (most recent call last):
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connectionpool.py", line 10, in <module>
    from queue import LifoQueue, Empty, Full
ImportError: cannot import name 'LifoQueue'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.4/dist-packages/requests/__init__.py", line 58, in <module>
   from . import utils
  File "/usr/local/lib/python3.4/dist-packages/requests/utils.py", line 26, in <module>
    from .compat import parse_http_list as _parse_list_header
  File "/usr/local/lib/python3.4/dist-packages/requests/compat.py", line 7, in <module>
    from .packages import chardet
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/__init__.py", line 3, in <module>
    from . import urllib3
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/__init__.py", line 10, in <module>
    from .connectionpool import (
  File "/usr/local/lib/python3.4/dist-packages/requests/packages/urllib3/connectionpool.py", line 12, in <module>
    from Queue import LifoQueue, Empty, Full
ImportError: No module named 'Queue'

I just copy the file name Queue.py in the */lib/python2.7/ to queue.py and that solved my problem.

I run into the same problem and learn that queue module defines classes and exceptions, that defines the public methods (Queue Objects).

Ex.

workQueue = queue.Queue(10)

Queue is in the multiprocessing module so:

from multiprocessing import Queue

You need install Queuelib either via the Python Package Index (PyPI) or from source.

To install using pip:-

$ pip install queuelib

To install using easy_install:-

$ easy_install queuelib

If you have downloaded a source tarball you can install it by running the following (as root):-

python setup.py install

import queue is lowercase q in Python 3.

Change Q to q and it will be fine.

(See code in https://stackoverflow.com/a/29688081/632951 for smart switching.)

It's because of the Python version. In Python 3 it's import Queue as queue; on the contrary in Python 2.x it's import queue. If you want it for both environments you may use something below as mentioned here

try:
   import queue
except ImportError:
   import Queue as queue

In my case it should be:

from multiprocessing import JoinableQueue

Since in python2, Queue has methods like .task_done(), but in python3 multiprocessing.Queue doesn't have this method, and multiprocessing.JoinableQueue does.