мой план состоит в том, чтобы получить Django с бэкэндом ElasticSearch, работающим с использованием Python3 на машине Debian 7.5-64bit.
Я объясню каждый шаг, потому что я не профессиональный админ и не готовый разработчик. Чтобы не забыть, я занимаюсь этой проблемой уже третий вечер, и я чувствую, что испробовал все советы в Интернете.
Сначала я распаковал, настроил, сделал, сделал тест, сделал установку Python-3.4.1 в свой /usr/local/. Это создало ссылки/бины в usr/local/bin. Итак, я создал символические ссылки из /usr/bin в /usr/local/bin и «установил» разные python3 (3.2 из Debian и 3.4) с альтернативными обновлениями. Я создал альтернативы для python3 и python3-config.
То же самое с Java 8u11 Server-JRE.
Я продолжил установку Django 1.6.5, Haystack 2.1, pyelasticsearch 0.6.1, по крайней мере, с КАЖДОЙ точкой, установленной в /usr/bin и /usr/local/bin (pip также установил запросы 2.3.0, simplejson 3.6.0, шесть 1.7.3).
Тем временем я также установил pyes 0.99.2 и urllib3 1.9. Оба с пипкой.
Django настроен и работает, а также apache с модулем mod-wsgi. Я создал проект django и приложение (пока нет моделей). Elasticsearch тоже работает, но индикаций пока нет.
В свой проект/settings.py я отредактировал и добавил:
INSTALLED_APPS = {...
'haystack'}
...
DATABASES = {
'default': {
'ENGINE': 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine',
'URL': 'http://127.0.0.1:9200/',
'NAME': 'haystack',
}
...
}
HAYSTACK_CONNECTIONS = {
'default': {
'ENGINE': 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine',
'URL': 'http://127.0.0.1:9200/',
'INDEX_NAME': 'haystack',
},
}
Когда я запускаю ./manage.py из папки проекта, я получаю следующую ошибку:
./manage.py syncdb
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 242, in run_from_argv
self.execute(*args, **options.__dict__)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 280, in execute
translation.activate('en-us')
File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/__init__.py", line 130, in activate
return _trans.activate(language)
File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 188, in activate
_active.value = translation(language)
File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 177, in translation
default_translation = _fetch(settings.LANGUAGE_CODE)
File "/usr/local/lib/python2.7/dist-packages/django/utils/translation/trans_real.py", line 159, in _fetch
app = import_module(appname)
File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 40, in import_module
__import__(name)
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/__init__.py", line 6, in <module>
from django.contrib.admin.sites import AdminSite, site
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/sites.py", line 4, in <module>
from django.contrib.admin.forms import AdminAuthenticationForm
File "/usr/local/lib/python2.7/dist-packages/django/contrib/admin/forms.py", line 6, in <module>
from django.contrib.auth.forms import AuthenticationForm
File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/forms.py", line 17, in <module>
from django.contrib.auth.models import User
File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/models.py", line 48, in <module>
class Permission(models.Model):
File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 96, in __new__
new_class.add_to_class('_meta', Options(meta, **kwargs))
File "/usr/local/lib/python2.7/dist-packages/django/db/models/base.py", line 264, in add_to_class
value.contribute_to_class(cls, name)
File "/usr/local/lib/python2.7/dist-packages/django/db/models/options.py", line 124, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "/usr/local/lib/python2.7/dist-packages/django/db/__init__.py", line 34, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 198, in __getitem__
backend = load_backend(db['ENGINE'])
File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 131, in load_backend
raise ImproperlyConfigured(error_msg)
django.core.exceptions.ImproperlyConfigured: 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine' isn't an available database backend.
Try using 'django.db.backends.XXX', where XXX is one of:
u'mysql', u'oracle', u'postgresql_psycopg2', u'sqlite3'
Error was: No module named ElasticsearchSearchEngine.base
И, как говорит шебанг в manage.py, здесь используется python2.7. Затем заставьте мой интерпретатор python 3.4:
python3 ./manage.py syncdb
Traceback (most recent call last):
File "<frozen importlib._bootstrap>", line 2218, in _find_and_load_unlocked
AttributeError: 'module' object has no attribute '__path__'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/lib/python3.4/site-packages/django/db/utils.py", line 113, in load_backend
return import_module('%s.base' % backend_name)
File "/usr/local/lib/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
File "<frozen importlib._bootstrap>", line 2212, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
File "<frozen importlib._bootstrap>", line 2221, in _find_and_load_unlocked
ImportError: No module named 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine'; 'haystack.backends.elasticsearch_backend' is not a package
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python3.4/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python3.4/site-packages/django/core/management/__init__.py", line 392, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python3.4/site-packages/django/core/management/base.py", line 242, in run_from_argv
self.execute(*args, **options.__dict__)
File "/usr/local/lib/python3.4/site-packages/django/core/management/base.py", line 280, in execute
translation.activate('en-us')
File "/usr/local/lib/python3.4/site-packages/django/utils/translation/__init__.py", line 130, in activate
return _trans.activate(language)
File "/usr/local/lib/python3.4/site-packages/django/utils/translation/trans_real.py", line 188, in activate
_active.value = translation(language)
File "/usr/local/lib/python3.4/site-packages/django/utils/translation/trans_real.py", line 177, in translation
default_translation = _fetch(settings.LANGUAGE_CODE)
File "/usr/local/lib/python3.4/site-packages/django/utils/translation/trans_real.py", line 159, in _fetch
app = import_module(appname)
File "/usr/local/lib/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen importlib._bootstrap>", line 2237, in _find_and_load
File "<frozen importlib._bootstrap>", line 2226, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 1200, in _load_unlocked
File "<frozen importlib._bootstrap>", line 1129, in _exec
File "<frozen importlib._bootstrap>", line 1471, in exec_module
File "<frozen importlib._bootstrap>", line 321, in _call_with_frames_removed
File "/usr/local/lib/python3.4/site-packages/django/contrib/admin/__init__.py", line 6, in <module>
from django.contrib.admin.sites import AdminSite, site
File "/usr/local/lib/python3.4/site-packages/django/contrib/admin/sites.py", line 4, in <module>
from django.contrib.admin.forms import AdminAuthenticationForm
File "/usr/local/lib/python3.4/site-packages/django/contrib/admin/forms.py", line 6, in <module>
from django.contrib.auth.forms import AuthenticationForm
File "/usr/local/lib/python3.4/site-packages/django/contrib/auth/forms.py", line 17, in <module>
from django.contrib.auth.models import User
File "/usr/local/lib/python3.4/site-packages/django/contrib/auth/models.py", line 48, in <module>
class Permission(models.Model):
File "/usr/local/lib/python3.4/site-packages/django/db/models/base.py", line 96, in __new__
new_class.add_to_class('_meta', Options(meta, **kwargs))
File "/usr/local/lib/python3.4/site-packages/django/db/models/base.py", line 264, in add_to_class
value.contribute_to_class(cls, name)
File "/usr/local/lib/python3.4/site-packages/django/db/models/options.py", line 124, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "/usr/local/lib/python3.4/site-packages/django/db/__init__.py", line 34, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/usr/local/lib/python3.4/site-packages/django/db/utils.py", line 198, in __getitem__
backend = load_backend(db['ENGINE'])
File "/usr/local/lib/python3.4/site-packages/django/db/utils.py", line 131, in load_backend
raise ImproperlyConfigured(error_msg)
django.core.exceptions.ImproperlyConfigured: 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine' isn't an available database backend.
Try using 'django.db.backends.XXX', where XXX is one of:
'mysql', 'oracle', 'postgresql_psycopg2', 'sqlite3'
Error was: No module named 'haystack.backends.elasticsearch_backend.ElasticsearchSearchEngine'; 'haystack.backends.elasticsearch_backend' is not a package
A ls показывает, что файл есть, и с помощью редактора я вижу, что класс существует /usr/local/lib/python3.4/site-packages/haystack/backends/elasticsearch_backend.py
Я НИЧЕГО не забыл? Должно ли быть что-то в «PYTHONPATH», которое находится в каталоге python-lib? Какая информация также может быть важной?
По крайней мере: возможна ли такая установка? Правильно ли я понял структуру django-haystack и базы данных?
Пожалуйста помогите. Я устал и закончил с документацией и образцами из django, haystack, elasticsearch и самых целевых хитов Google.
