Me sale un error muy extraño al usar MongoKit:

<code>>>> from mongokit import *
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/dist-packages/mongokit/__init__.py", line 35, in <module>
    from document import Document, ObjectId
  File "/usr/local/lib/python2.7/dist-packages/mongokit/document.py", line 48, in <module>
    from pymongo.objectid import ObjectId
ImportError: No module named objectid
</code>

Intenté todo para encontrar la razón, pero nada ayuda. En realidad, busqué en Google el error "ImportError: No hay módulo llamado objectid" y no tiene ningún resultado. Intenté usar MongoKit siguiendo el sencillo tutorialhttp://namlook.github.com/mongokit/introduction.html#a-quick-example y la primera línea del tutorial produce este extraño error. A continuación se muestra el registro de instalación de MongoKit.

¿Qué estoy haciendo mal?

<code>user@server:~$ sudo pip install mongokit
Downloading/unpacking mongokit
  Downloading mongokit-0.7.2.tar.gz (69Kb): 69Kb downloaded
  Running setup.py egg_info for package mongokit

Downloading/unpacking pymongo>=2.0.1 (from mongokit)
  Downloading pymongo-2.2.tar.gz (228Kb): 228Kb downloaded
  Running setup.py egg_info for package pymongo

Downloading/unpacking anyjson>=0.2.2 (from mongokit)
  Downloading anyjson-0.3.1.tar.gz
  Running setup.py egg_info for package anyjson

Installing collected packages: mongokit, pymongo, anyjson
  Running setup.py install for mongokit

  Running setup.py install for pymongo
    building 'bson._cbson' extension
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibson -I/usr/include/python2.7 -c bson/_cbsonmodule.c -o build/temp.linux-i686-2.7/bson/_cbsonmodule.o
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibson -I/usr/include/python2.7 -c bson/time64.c -o build/temp.linux-i686-2.7/bson/time64.o
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibson -I/usr/include/python2.7 -c bson/buffer.c -o build/temp.linux-i686-2.7/bson/buffer.o
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibson -I/usr/include/python2.7 -c bson/encoding_helpers.c -o build/temp.linux-i686-2.7/bson/encoding_helpers.o
    gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro build/temp.linux-i686-2.7/bson/_cbsonmodule.o build/temp.linux-i686-2.7/bson/time64.o build/temp.linux-i686-2.7/bson/buffer.o build/temp.linux-i686-2.7/bson/encoding_helpers.o -o build/lib.linux-i686-2.7/bson/_cbson.so
    building 'pymongo._cmessage' extension
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibson -I/usr/include/python2.7 -c pymongo/_cmessagemodule.c -o build/temp.linux-i686-2.7/pymongo/_cmessagemodule.o
    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -Ibson -I/usr/include/python2.7 -c bson/buffer.c -o build/temp.linux-i686-2.7/bson/buffer.o
    gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro build/temp.linux-i686-2.7/pymongo/_cmessagemodule.o build/temp.linux-i686-2.7/bson/buffer.o -o build/lib.linux-i686-2.7/pymongo/_cmessage.so

  Running setup.py install for anyjson

Successfully installed mongokit pymongo anyjson
Cleaning up...
</code>