python
으로 파이썬 2.7의 쉘을 시작한 후 import psycopg2
을 실행해도 오류가 발생하지 않습니다. 그러나 파이썬 3.4의 쉘에서 import psycopg2
을 실행하려고하면 다음과 같이 나타납니다 : ImportError: No module named 'psycopg2'
. 반면에 django를 가져 오는 것은 두 셸 모두에서 제대로 작동합니다 (pip3을 사용하여 설치 한 후).PostgreSQL (psycopg2) 및 Django로 Python 3.4를 실행하는 중에 오류가 발생했습니다.
둘째, python3 manage.py runserver
을 실행하면 오류가 발생합니다 (아래 참조). 단, python
만 사용하면 오류가 발생합니다. 나는 이것이 내가 설명한 첫 번째 문제로 생각한다. 그러나 나는 확신 할 수 없다. (이것이 바보 같은 질문이라면 유감스럽게 생각한다. 나는 장고를 처음 접했을 때 - 튜토리얼을 통해 얻으 려한다).
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 23, in <module>
import psycopg2 as Database
ImportError: No module named 'psycopg2'
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 "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/core/management/__init__.py", line 354, in execute
django.setup()
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/__init__.py", line 21, in setup
apps.populate(settings.INSTALLED_APPS)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/apps/registry.py", line 108, in populate
app_config.import_models(all_models)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/apps/config.py", line 202, in import_models
self.models_module = import_module(models_module_name)
File "/Library/Frameworks/Python.framework/Versions/3.4/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 "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/contrib/auth/models.py", line 40, in <module>
class Permission(models.Model):
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/models/base.py", line 122, in __new__
new_class.add_to_class('_meta', Options(meta, * * kwargs))
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/models/base.py", line 297, in add_to_class
value.contribute_to_class(cls, name)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/models/options.py", line 166, in contribute_to_class
self.db_table = truncate_name(self.db_table, connection.ops.max_name_length())
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/__init__.py", line 40, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/utils.py", line 242, in __getitem__
backend = load_backend(db['ENGINE'])
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/utils.py", line 108, in load_backend
return import_module('%s.base' % backend_name)
File "/Library/Frameworks/Python.framework/Versions/3.4/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 "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/django/db/backends/postgresql_psycopg2/base.py", line 27, in <module>
raise ImproperlyConfigured("Error loading psycopg2 module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading psycopg2 module: No module named 'psycopg2'
수정하려면 어떻게해야합니까?
또한이 전체 Python 2 vs 3 비즈니스를 장고와 혼동스럽게 생각합니다. (이것이 정말로 기본적인 질문이라면 다시 미안합니다.) django-admin.py startproject theproject
을 실행할 때 장고에 사용할 파이썬 버전을 어떻게 지정합니까? Python 3에서 코드를 작성하고 python3
과 python
이 아닌 모든 것을 실행하는 것만 큼 간단합니까?
'pip3 install psycopg2'를 이미 실행 했습니까? 어떤 오류가 있었습니까? – Alasdair