Django - ImportError：無法導入名稱simplejson

我是Django的初學者，遇到ImportError: cannot import name simplejson錯誤。 Here，有人建議更新extdirect的providers.py來導入json而不是simplejson，但我不知道經過長時間的網上衝浪如何做到這一點，我不知道什麼是extdirect？最終，我的目標是將ORM查詢結果集轉換爲json並將其傳遞給客戶端。Django - ImportError：無法導入名稱simplejson

下面是代碼：

from django.core import serializers 

vendors_json = AgreementVendors.objects.select_related('agreement_unique').all() 
return serializers.serialize('json', [x.agreement_unique for x in vendors_json])

型號：

class AgreementUnique(models.Model): 
    agreement_number = models.CharField(max_length=45, blank=True, null=True) 
    sign_date = models.DateTimeField(default=timezone.now) 
    cities = models.ForeignKey('address.Cities', on_delete=models.CASCADE) 
    sale_point = models.ForeignKey('legal_entity.SalePoint', on_delete=models.CASCADE) 
    sale_point_representative = models.ForeignKey('employee.Employees', on_delete=models.CASCADE) 
    partner_base = models.ForeignKey('PartnershipBase', on_delete=models.CASCADE) 
    agreement_from = models.DateField() 
    agreement_to = models.DateField() 
    blacknwhite = models.NullBooleanField() 
    prolongable = models.NullBooleanField() 

    class Meta: 
     managed = False 
     db_table = 'agreement_unique' 

    def __unicode__(self): 
     try: 
      return smart_unicode(AgreementEmployees.objects.get(agreement_unique=self.id).person_unique) 
     except AgreementEmployees.DoesNotExist: 
      return smart_unicode(self.agreement_number) 

class AgreementVendors(models.Model): 
    agreement_unique = models.ForeignKey(AgreementUnique, on_delete=models.CASCADE) 
    vendors = models.ForeignKey('vendor.Vendors', on_delete=models.CASCADE) 
    return_percentage = models.FloatField() 
    payment_method = models.ForeignKey('additional.PaymentMethod', on_delete=models.CASCADE) 
    vendor_representative = models.ForeignKey('person.PersonUnique', on_delete=models.CASCADE) 
    days_of_payment = models.IntegerField() 

    class Meta: 
     managed = False 
     db_table = 'agreement_vendors'   

    def __unicode__(self): 
     return smart_unicode(self.vendors)

而且回溯：

Traceback (most recent call last): 
    File "C:\Python27\lib\site-packages\django\core\handlers\base.py", line 148, in get_response 
    response = self.process_exception_by_middleware(e, request) 
    File "C:\Python27\lib\site-packages\django\core\handlers\base.py", line 146, in get_response 
    response = wrapped_callback(request, *callback_args, **callback_kwargs) 
    File "C:\Users\edgar\Desktop\Project\djprj\vendor\views.py", line 153, in create_new_vendor_agreement 
    return serializers.serialize('json', [x.agreement_unique for x in vendors_json]) 
    File "C:\Python27\lib\site-packages\django\core\serializers\__init__.py", line 128, in serialize 
    s = get_serializer(format)() 
    File "C:\Python27\lib\site-packages\django\core\serializers\__init__.py", line 51, in __call__ 
    raise self.exception 
ImportError: cannot import name simplejson

而且，奇怪的是，我不能跨來嘗試通過項目範圍內的Ctrl + F進行搜索時發生simplejson單擊事件

來源

2016-05-12 Edgar Navasardyan

您使用的是哪個版本的Django？ – Alasdair

這是Django 1.9 –

我不知道Django升級是否失敗。 Django很久沒有使用'simplejson'了。你可以檢查'C：\ Python27 \ lib \ site-packages \ django \ core \ serializers \ json.py'，看它是否包含'from django.utils import simplejson'這行嗎？ – Alasdair

檢查

SERIALIZATION_MODULES

是你的settings.py裏面。它可能會覆蓋默認的json序列化程序。

來源

2016-05-14 09:45:59 Irvan

嗯，它實際上是 –

SERIALIZATION_MODULES = {'json'：'wadofstuff.django.serializers.json' } –

@EdgarNavasardyan是的，那是你的罪犯。 – Irvan

Django - ImportError：無法導入名稱simplejson

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