导入错误:没有模块在Python命名为“模型” 3
问题描述:
我有一个新的Python项目,与models.py文件看起来像这样:导入错误:没有模块在Python命名为“模型” 3
from django.db import models
from django.contrib.auth.models import User
from django.core.validators import MinValueValidator, MaxValueValidator
class Metric(models.Model):
users = models.ManyToManyField(User, through = 'Vote')
name = models.CharField(max_length = 255)
class Vote(models.Model):
metric = models.ForeignKey(Metric, on_delete = models.CASCADE)
user = models.ForeignKey(User, on_delete = models.CASCADE)
rating = models.IntegerField(validators = [MinValueValidator(0), MaxValueValidator(10)])
email = models.EmailField
def __str__(self):
return str(self.rating)
和admin.py文件是这样的:
from django.contrib import admin
from models import Metric, Vote
admin.site.register(Metric)
admin.site.register(Vote)
在Python 2.7.5中运行此应用程序时,启动应用程序工作正常。当我尝试运行使用Python 3.5.1,我得到错误ImportError: No module named 'models'
,这个回溯:
Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x103bd2b70>
Traceback (most recent call last):
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/core/management/commands/runserver.py", line 113, in inner_run
autoreload.raise_last_exception()
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/utils/autoreload.py", line 249, in raise_last_exception
six.reraise(*_exception)
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/utils/six.py", line 685, in reraise
raise value.with_traceback(tb)
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/utils/autoreload.py", line 226, in wrapper
fn(*args, **kwargs)
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/apps/registry.py", line 115, in populate
app_config.ready()
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/contrib/admin/apps.py", line 23, in ready
self.module.autodiscover()
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/contrib/admin/__init__.py", line 26, in autodiscover
autodiscover_modules('admin', register_to=site)
File "/Users/sashacooper/pyenv/lib/python3.5/site-packages/django/utils/module_loading.py", line 50, in autodiscover_modules
import_module('%s.%s' % (app_config.name, module_to_search))
File "/Users/sashacooper/pyenv/lib/python3.5/importlib/__init__.py", line 126, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 986, in _gcd_import
File "<frozen importlib._bootstrap>", line 969, in _find_and_load
File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 662, in exec_module
File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
File "/Users/sashacooper/Desktop/pogroms/crockerometer2/crockerometer/admin.py", line 2, in <module>
from models import Metric, Vote
我试着加入from __future__ import absolute_import
每类似名称的堆栈溢出职位admin.py文件的开始但它并没有改变错误。是什么造成的?
答
在Python 3,您必须在您使用相对进口告诉它:
from .models import ...
答
尝试from .models import Metric, Vote
在admin.py
答
我一直使用:
from myapp.models import ...
而不是相对进口。只是我个人的喜好。也许相对导入更有意义,如果它是admin.py
对于myapp
,但我仍然喜欢在导入中具有应用程序名称的明确性。
你尝试从你的manage.py文件开始传递完整路径吗? – sebb