python – 在脚本中使用django模型

2019年8月6日 114次阅读

我有一个xml解析器,它将该数据存储到
MySQL数据库中,作为django应用程序的一部分.解析器旨在每天运行,捕获一些测试输出：

`dbsync.py`:

   1 #!/usr/bin/env python
   2 import os
   3 os.environ['DJANGO_SETTINGS_MODULE'] = 'autotester.settings'
   4 
   5 import xml_parser
   6 from models import *

Django项目称为autotester,应用程序称为autoreporter.
当我执行

python dbsync.py

我越来越：

Traceback (most recent call last):
  File "autoreporter/dbsync.py", line 6, in <module>
    from models import *
  File "/root/autotester/autoreporter/models.py", line 1, in <module>
    from django.db import models
  File "/usr/lib/python2.7/dist-packages/django/db/models/__init__.py", line 5, in <module>
    from django.db.models.query import Q
  File "/usr/lib/python2.7/dist-packages/django/db/models/query.py", line 17, in <module>
    from django.db.models.deletion import Collector
  File "/usr/lib/python2.7/dist-packages/django/db/models/deletion.py", line 4, in <module>
    from django.db.models import signals, sql
  File "/usr/lib/python2.7/dist-packages/django/db/models/sql/__init__.py", line 4, in <module>
    from django.db.models.sql.subqueries import *
  File "/usr/lib/python2.7/dist-packages/django/db/models/sql/subqueries.py", line 12, in <module>
    from django.db.models.sql.query import Query
  File "/usr/lib/python2.7/dist-packages/django/db/models/sql/query.py", line 22, in <module>
    from django.db.models.sql import aggregates as base_aggregates_module
  File "/usr/lib/python2.7/dist-packages/django/db/models/sql/aggregates.py", line 9, in <module>
    ordinal_aggregate_field = IntegerField()
  File "/usr/lib/python2.7/dist-packages/django/db/models/fields/__init__.py", line 116, in __init__
    self.db_tablespace = db_tablespace or settings.DEFAULT_INDEX_TABLESPACE
  File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 54, in __getattr__
    self._setup(name)
  File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 49, in _setup
    self._wrapped = Settings(settings_module)
  File "/usr/lib/python2.7/dist-packages/django/conf/__init__.py", line 132, in __init__
    % (self.SETTINGS_MODULE, e)
ImportError: Could not import settings 'autotester.settings' (Is it on sys.path? Is there an import error in the settings file?): No module named autotester.settings

如何设置DJANGO_SETTINGS_MODULE,以便我可以正确执行dbsync.py脚本？

最佳答案 两个问题

>您需要从您的应用程序导入模型,因此只要您的Django项目位于PYTHONPATH中,您只需通过以下方式导入应用程序模型：

来自autoreporter.models import *

或者执行相对导入,如果dbsync.py(从您的回溯中查找)在app目录中.

from .models import *

>将Django项目添加到PYTHONPATH.您需要在PYTHONPATH中安装Django项目才能从dbsync.py访问它(如果它位于您的django app目录中),快速轻松修复此问题将在您的代码中执行以下操作来执行dbsync.py.

import sys
import os
##get project directory
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
##get project parent directory and add to python path using sys.path.append
SYS_PATH = os.path.dirname(BASE_DIR)
if SYS_PATH not in sys.path:
    sys.path.append(SYS_PATH)
os.environ['DJANGO_SETTINGS_MODULE'] = 'autotester.settings'
点赞