1
我有一個Django模型，其中我進口一些項目：Django的出於某種原因不希望導入一個特定的模式
from django.db import models
from mcif.models.import_profile import ImportProfile
from mcif.models.import_file import ImportFile
from mcif.models.import_bundle import ImportBundle
from mcif.models.customer import Customer
#from mcif.models.account_import import AccountImport
from mcif.models.csv_row import CSVRow
import csv, cStringIO
它工作正常，但是當我取消該行多數民衆贊成評論，我得到這個：
Traceback (most recent call last):
File "./manage.py", line 11, in <module>
execute_manager(settings)
File "/usr/lib/pymodules/python2.6/django/core/management/__init__.py", line 438, in execute_manager
utility.execute()
File "/usr/lib/pymodules/python2.6/django/core/management/__init__.py", line 379, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/lib/pymodules/python2.6/django/core/management/base.py", line 191, in run_from_argv
self.execute(*args, **options.__dict__)
File "/usr/lib/pymodules/python2.6/django/core/management/base.py", line 220, in execute
output = self.handle(*args, **options)
File "/usr/lib/pymodules/python2.6/django/core/management/base.py", line 351, in handle
return self.handle_noargs(**options)
File "/usr/lib/pymodules/python2.6/django/core/management/commands/shell.py", line 18, in handle_noargs
loaded_models = get_models()
File "/usr/lib/pymodules/python2.6/django/db/models/loading.py", line 167, in get_models
self._populate()
File "/usr/lib/pymodules/python2.6/django/db/models/loading.py", line 64, in _populate
self.load_app(app_name)
File "/usr/lib/pymodules/python2.6/django/db/models/loading.py", line 78, in load_app
models = import_module('.models', app_name)
File "/usr/lib/pymodules/python2.6/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "/home/jason/projects/mcifdjango/mcif/models/__init__.py", line 5, in <module>
from mcif.models.account_import import AccountImport
File "/home/jason/projects/mcifdjango/mcif/models/account_import.py", line 2, in <module>
from mcif.models.generic_import import GenericImport
File "/home/jason/projects/mcifdjango/mcif/models/generic_import.py", line 6, in <module>
from mcif.models.account_import import AccountImport
ImportError: cannot import name AccountImport
爲什麼Django不喜歡這個特定的文件？
（我可以在控制檯就好了由自身加載AccountImport）
而且，這裏是AccountImport如果有幫助，看看它：
from django.db import models
from mcif.models.generic_import import GenericImport
class AccountImport(models.Model):
id = models.BigIntegerField(primary_key=True)
generic_import = models.ForeignKey(GenericImport)
is_entirely_international = models.IntegerField()
is_queued = models.IntegerField()
created_at = models.DateTimeField()
updated_at = models.DateTimeField()
class Meta:
db_table = u'account_import'
app_name = 'mcif'
而且GenericImport：
from django.db import models
from mcif.models.import_profile import ImportProfile
from mcif.models.import_file import ImportFile
from mcif.models.import_bundle import ImportBundle
from mcif.models.customer import Customer
from mcif.models.csv_row import CSVRow
import csv, cStringIO
class GenericImport(models.Model):
class Meta:
db_table = u'generic_import'
app_name = 'mcif'
id = models.BigIntegerField(primary_key=True)
import_profile = models.ForeignKey(ImportProfile)
import_file = models.ForeignKey(ImportFile)
notes = models.TextField()
start_time = models.DateTimeField()
end_time = models.DateTimeField()
active = models.IntegerField()
created_at = models.DateTimeField()
updated_at = models.DateTimeField()
unsavable_rows = models.TextField()
import_bundle = models.ForeignKey(ImportBundle)
is_queued = models.IntegerField()
@classmethod
def last(cls):
all = GenericImport.objects.all()
return all[len(all) - 1]
def process(self):
for line in self.import_file.file.split("\n")[:30]:
f = cStringIO.StringIO(line)
row = CSVRow()
row.array = next(csv.reader(f))
row.generic_import = self
row.process()
f.close()
def specific_import(self):
for model_name in ['TransactionImport', 'AccountImport']:
specific_imports = eval(model_name + '.objects.filter(generic_import__pk=5)')
if len(specific_imports) > 0:
return specific_imports[0]
return False
要麼你，因爲你碰到了問題，修改`GenericImport`或者這是不正確的文件。這個文件的第6行沒有`from mcif.models.account_import import AccountImport`。 – 2011-02-04 16:32:15
沒錯。我把註釋掉的行刪除了。除此之外，它是相同的。 – 2011-02-04 16:35:30
那麼你在那之後重試了嗎？如果遇到相同的錯誤，請發佈新的回溯。當你第一次運行它時，這條線顯然沒有被註釋掉，或者它不會被執行並顯示在回溯中。 – 2011-02-04 16:36:57