Der Versuch, GEVENT Bibliothek in Python zu verwenden: „Import: nicht Importname Kern“

Question

Ich versuche, die GEVENT Bibliothek in einer Python-Anwendung zu verwenden Ich bin Schreiben. Doch sowohl easy_install und es manuell zu installieren erscheint scheitern. Irgendwelche Vorschläge?

Python 2.6.2 (r262:71600, Aug  5 2009, 10:31:21) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-44)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import gevent
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "gevent/__init__.py", line 28, in <module>
    from gevent.greenlet import Greenlet, joinall, killall
  File "gevent/greenlet.py", line 5, in <module>
    from gevent import core
ImportError: cannot import name core
>>> 

Der komplette Dump meines "Build" und "install" Befehle sind:

(env)[root@test1:downloads/gevent-0.10.0]# python setup.py build                                        (02-20 16:00)
found system libevent for linux2
running build
running build_py
creating build/lib.linux-i686-2.6
creating build/lib.linux-i686-2.6/gevent
copying gevent/rawgreenlet.py -> build/lib.linux-i686-2.6/gevent
copying gevent/thread.py -> build/lib.linux-i686-2.6/gevent
copying gevent/greenlet.py -> build/lib.linux-i686-2.6/gevent
copying gevent/event.py -> build/lib.linux-i686-2.6/gevent
copying gevent/hub.py -> build/lib.linux-i686-2.6/gevent
copying gevent/util.py -> build/lib.linux-i686-2.6/gevent
copying gevent/monkey.py -> build/lib.linux-i686-2.6/gevent
copying gevent/__init__.py -> build/lib.linux-i686-2.6/gevent
copying gevent/coros.py -> build/lib.linux-i686-2.6/gevent
copying gevent/select.py -> build/lib.linux-i686-2.6/gevent
copying gevent/wsgi.py -> build/lib.linux-i686-2.6/gevent
copying gevent/socket.py -> build/lib.linux-i686-2.6/gevent
copying gevent/queue.py -> build/lib.linux-i686-2.6/gevent
copying gevent/pool.py -> build/lib.linux-i686-2.6/gevent
copying gevent/timeout.py -> build/lib.linux-i686-2.6/gevent
copying gevent/backdoor.py -> build/lib.linux-i686-2.6/gevent
copying gevent/proc.py -> build/lib.linux-i686-2.6/gevent
running build_ext
building 'gevent.core' extension
creating build/temp.linux-i686-2.6
creating build/temp.linux-i686-2.6/gevent
gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -fPIC -I/usr/local/include/python2.6 -c gevent/core.c -o build/temp.linux-i686-2.6/gevent/core.o
gevent/core.c: In function ‘__pyx_pf_6gevent_4core_get_header_version’:
gevent/core.c:4360: warning: label ‘__pyx_L1_error’ defined but not used
gevent/core.c: In function ‘__pyx_pf_6gevent_4core_reinit’:
gevent/core.c:4419: warning: label ‘__pyx_L1_error’ defined but not used
gcc -pthread -shared build/temp.linux-i686-2.6/gevent/core.o -levent -o build/lib.linux-i686-2.6/gevent/core.so
(env)[root@test1:downloads/gevent-0.10.0]# python setup.py install                                      (02-20 16:01)
found system libevent for linux2
running install
running build
running build_py
running build_ext
running install_lib
creating /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/rawgreenlet.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/thread.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/greenlet.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/event.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/hub.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/util.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/monkey.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/__init__.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/coros.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/select.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/wsgi.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/socket.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/queue.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/pool.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/timeout.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/backdoor.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/proc.py -> /ews/test_project/env/lib/python2.6/site-packages/gevent
copying build/lib.linux-i686-2.6/gevent/core.so -> /ews/test_project/env/lib/python2.6/site-packages/gevent
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/rawgreenlet.py to rawgreenlet.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/thread.py to thread.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/greenlet.py to greenlet.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/event.py to event.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/hub.py to hub.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/util.py to util.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/monkey.py to monkey.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/__init__.py to __init__.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/coros.py to coros.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/select.py to select.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/wsgi.py to wsgi.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/socket.py to socket.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/queue.py to queue.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/pool.py to pool.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/timeout.py to timeout.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/backdoor.py to backdoor.pyc
byte-compiling /ews/test_project/env/lib/python2.6/site-packages/gevent/proc.py to proc.pyc
running install_egg_info
Writing /ews/test_project/env/lib/python2.6/site-packages/gevent-0.10.0-py2.6.egg-info
(env)[root@test1:downloads/gevent-0.10.0]# python                                                       (02-20 16:01)
Python 2.6.2 (r262:71600, Aug  5 2009, 10:31:21) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-44)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import gevent
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "gevent/__init__.py", line 28, in <module>
    from gevent.greenlet import Greenlet, joinall, killall
  File "gevent/greenlet.py", line 5, in <module>
    from gevent import core
ImportError: cannot import name core
>>> 

Answer 1

Der Fehler wurde einfach verursacht, indem Sie versuchen, einen Skript aus dem Projekt Quellverzeichnis ausgeführt werden. Der Wechsel zu einem anderen Verzeichnis und einen „Import“ funktionierte gut tun. Weitere Informationen hier auf GEVENT Mailing-Liste.

Answer 2

Ich habe Ihre Frage auf der Mailingliste beantwortet.

BTW, verwenden Sie Version 0.10.0 von GEVENT? Es ist uralt! Die neueste ist 0.12.0 .