python - 错误 : No module named psycopg2. 扩展 django postgresql

Question

我想将 PostgreSQl 与 Django 一起使用。我提到了this安装它的教程以及当我运行此命令时

python manage.py syncdb

我得到以下错误

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 453, 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/__init__.py", line 272, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 77, in load_command_class
    module = import_module('%s.management.commands.%s' % (app_name, name))
  File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/syncdb.py", line 8, in <module>
    from django.core.management.sql import custom_sql_for_model, emit_post_sync_signal
  File "/usr/local/lib/python2.7/dist-packages/django/core/management/sql.py", line 9, in <module>
    from django.db import models
  File "/usr/local/lib/python2.7/dist-packages/django/db/__init__.py", line 40, in <module>
    backend = load_backend(connection.settings_dict['ENGINE'])
  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 93, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 27, in load_backend
    return import_module('.base', backend_name)
  File "/usr/local/lib/python2.7/dist-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/usr/local/lib/python2.7/dist-packages/django/db/backends/postgresql_psycopg2/base.py", line 14, in <module>
    from django.db.backends.postgresql_psycopg2.creation import DatabaseCreation
  File "/usr/local/lib/python2.7/dist-packages/django/db/backends/postgresql_psycopg2/creation.py", line 1, in <module>
    import psycopg2.extensions
ImportError: No module named psycopg2.extensions

我也看到了这个question并执行这个

sudo apt-get build-dep python-psycopg2
pip install psycopg2 

但是我在这样做之后仍然得到同样的错误

Answer 1

使用 sudo 确保正在安装的所有软件包都已完成；否则，安装可能会失败，您可能不会注意到表明失败是由于权限问题导致的错误消息。