属性错误：'NoneType'对象在 suds 中没有属性'str'

我在我们的项目中使用用于WSDL的suds客户端。

我有这个代码。

sudsclient = sudsClient(settings.WSDL_URL)
values = {
                                    "MerchantCode": settings.YP_MERCHANT_CODE,
                                    "MerchantReference": str(reference_id),
                                    "TransactionType":settings.YP_TRANSACTION_TYPE,
                                    "Amount":int(charged),
                                    "CurrencyCode":client.currency,
                                    "CardHolderName":str(form.cleaned_data['name_on_card']),
                                    "CardNumber": str(form.cleaned_data['card_number']),
                                    "ExpiryMonth":int(form.cleaned_data['exp_month']),
                                    "ExpiryYear":int(form.cleaned_data['exp_year']),
                                    "CardID":0,
                                    "CardSecurityCode":str(form.cleaned_data['security_code']),
                                    "CustomerAccountNumber":"",
                                    "BillNumber":0,
                                    "CardHolderEmail":str(form.cleaned_data['email']),
                                    "ClientIPAddress":get_ip,
                                    "Notes":"OK",
                                            }
response = sudsclient.service.OnlineTransaction(**values)

当我运行我的程序时，我得到了这个错误：

Exception Type: AttributeError
Exception Value:    
'NoneType' object has no attribute 'str'
Exception Location: /usr/local/lib/python2.7/dist-packages/suds/sax/document.py in str, line 48

我确信我在本地和测试中的代码是相同的。

我认为问题出在suds中，但我不知道如何解决它。

有人能帮我吗？提前谢谢。。

 Environment:
Request Method: GET
Request URL: http://127.0.0.1:8000/1/book/save/?csrfmiddlewaretoken=05e5bdb542c3be7515b87e8160c347a0&check_in=2012-04-24&check_out=2012-04-25&no_of_nights=1&quantity=1&product=4&price=900.0&chargedMasterCard=180.0&chargedVisa=90.0&totalcostMasterCard=720.0&totalcostVisa=810.0&totalcost=900.0&charged=10.0&price_rate=1000.0&old_totalcost=1000.0&discount_charged=100.0&first_name=dsnmbmh&last_name=jhbjhb&email=jdlabandero%40agile.com.ph&contact=657879&address=gjkj&no_of_adult=1&no_of_kid=0&memo=&card_type=MasterCard&card_number=40000234234210&security_code=788&name_on_card=ghjk&exp_month=1&exp_year=2012
Django Version: 1.3.1
Python Version: 2.7.1
Installed Applications:
['admin_tools',
 'admin_tools.theming',
 'admin_tools.menu',
 'admin_tools.dashboard',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.sites',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'django.contrib.humanize',
 'django.contrib.admin',
 'surebooked.booking',
 'surebooked.api',
 'surebooked.account_app',
 'surebooked.client_app',
 'surebooked.product_app',
 'surebooked.report_app',
 'debug_toolbar',
 'billing',
 'south',
 'paypal.standard.ipn',
 'django_extensions',
 'cms',
 'menus',
 'mptt',
 'south',
 'cms.plugins.text',
 'cms.plugins.picture',
 'cms.plugins.link',
 'cms.plugins.file',
 'cms.plugins.snippet',
 'cms.plugins.googlemap',
 'sekizai',
 'django.contrib.admin',
 'filer',
 'sorl.thumbnail',
 'easy_thumbnails',
 'cmsplugin_filer_file',
 'cmsplugin_filer_folder',
 'cmsplugin_filer_image',
 'cmsplugin_filer_teaser',
 'cmsplugin_filer_video',
 'media_tree',
 'django_cron']
Installed Middleware:
('django.middleware.common.CommonMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.csrf.CsrfResponseMiddleware',
 'debug_toolbar.middleware.DebugToolbarMiddleware',
 'media_tree.middleware.SessionPostMiddleware',
 'cms.middleware.page.CurrentPageMiddleware',
 'cms.middleware.user.CurrentUserMiddleware',
 'cms.middleware.toolbar.ToolbarMiddleware')

    Traceback:
    File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
      111.                         response = callback(request, *callback_args, **callback_kwargs)
    File "/home/agileone/workspace/surebooked/surebooked/../surebooked/booking/views.py" in booking_save_page
      752.                             response = sudsclient.service.OnlineTransaction(**values)
    File "/usr/local/lib/python2.7/dist-packages/suds/client.py" in __call__
      542.             return client.invoke(args, kwargs)
    File "/usr/local/lib/python2.7/dist-packages/suds/client.py" in invoke
      595.         soapenv = binding.get_message(self.method, args, kwargs)
    File "/usr/local/lib/python2.7/dist-packages/suds/bindings/binding.py" in get_message
      120.         content = self.bodycontent(method, args, kwargs)
    File "/usr/local/lib/python2.7/dist-packages/suds/bindings/document.py" in bodycontent
      63.             p = self.mkparam(method, pd, value)
    File "/usr/local/lib/python2.7/dist-packages/suds/bindings/document.py" in mkparam
      105.             return Binding.mkparam(self, method, pdef, object)
    File "/usr/local/lib/python2.7/dist-packages/suds/bindings/binding.py" in mkparam
      287.         return marshaller.process(content)
    File "/usr/local/lib/python2.7/dist-packages/suds/mx/core.py" in process
      62.             self.append(document, content)
    File "/usr/local/lib/python2.7/dist-packages/suds/mx/core.py" in append
      73.         log.debug('appending parent:n%sncontent:n%s', parent, content)
    File "/usr/lib/python2.7/logging/__init__.py" in debug
      1120.             self._log(DEBUG, msg, args, **kwargs)
    File "/usr/lib/python2.7/logging/__init__.py" in _log
      1250.         self.handle(record)
    File "/usr/lib/python2.7/logging/__init__.py" in handle
      1260.             self.callHandlers(record)
    File "/usr/lib/python2.7/logging/__init__.py" in callHandlers
      1300.                     hdlr.handle(record)
    File "/usr/lib/python2.7/logging/__init__.py" in handle
      744.                 self.emit(record)
    File "/home/agileone/workspace/surebooked/surebooked/.ve/src/django-debug-toolbar/debug_toolbar/panels/logger.py" in emit
      51.             'message': record.getMessage(),
    File "/usr/lib/python2.7/logging/__init__.py" in getMessage
      328.             msg = msg % self.args
    File "/usr/local/lib/python2.7/dist-packages/suds/sax/document.py" in __str__
      58.         return unicode(self).encode('utf-8')
    File "/usr/local/lib/python2.7/dist-packages/suds/sax/document.py" in __unicode__
      61.         return self.str()
    File "/usr/local/lib/python2.7/dist-packages/suds/sax/document.py" in str
      48.         s.append(self.root().str())
    Exception Type: AttributeError at /1/book/save/
    Exception Value: 'NoneType' object has no attribute 'str'

我真的不知道为什么我会犯这个错误。现在我在本地和生产中都出现了同样的错误。顺便说一句，当我分离代码并尝试运行时。运行正常。

sudstest.py

#!/usr/bin/env python
import os
from suds.client import Client as abo
WSDL = 'DirectConnect.production.wsdl'
#def test_api():
url = 'file://' + os.path.join(os.path.abspath(os.path.dirname(__file__)), WSDL)
print url
client = abo(url)
data = {
    'MerchantCode': 'HELLO',
    'MerchantReference':  '3252',
    'TransactionType': 20,
    'Amount': 10,
    'CurrencyCode': 'USD',
    'CardHolderName': 'RAUL O REVECHE',
    'CardNumber': 4005550000000001,
    'ExpiryMonth': 5,
    'ExpiryYear': 2013,
    'CardID': 0,
    'CardSecurityCode': 400,
    'CustomerAccountNumber': '',
    'BillNumber': 0,
    'CardHolderEmail': 'development@yespayments.com.ph',
    'ClientIPAddress': 'http://127.0.0.1:8000/',
    'Notes': 'This is test',
}
print data
result = client.service.OnlineTransaction(**data)
print result.ResponseDescription

错误在suds中@okm很接近，但问题确实出在Document.__str__上。然而，只有在使用django调试工具栏时才会暴露该错误，因为日志面板显示了已记录的所有消息。这会触发suds错误。

我已经创建了一个修补版本的suds来修复这个问题：https://github.com/bradleyayers/suds-htj

编辑：我的补丁现已合并到https://github.com/htj/suds-htj–使用该存储库，而不是

正如@bradley.ayers所说，问题出在suds库中（它已经死了）。你可以用他建议的叉子：https://github.com/htj/suds-htj

但是，通过在相关代码周围添加try-catch语句，在调试工具栏的更高版本（>0.9.4）中修复了该问题。您可以使用开发中版本的调试工具栏，使用：

   pip install django-debug-toolbar==dev

或者简单地在模块初始化文件中的某个地方对try-catch块进行猴子补丁：

import debug_toolbar.panels.logger
original_emit = debug_toolbar.panels.logger.ThreadTrackingHandler.emit
def emit(self, record):
    try:
        original_emit(self, record)
    except:
        pass
debug_toolbar.panels.logger.ThreadTrackingHandler.emit = emit

self.root返回的None值引起异常，如下所示在suds.sax.Document，中

def root(self): 
    if len(self.children): 
        return self.children[0] 
    else: 
        return None

因此，这似乎是由于缺少一些数据字段造成的。再次在本地计算机上回放您在测试服务器上填写的确切数据可能会有所帮助。还要检查测试服务器上的Django设置，以确保它们与您的本地设置相似。

我在测试服务器中遇到了这个问题，IP地址被WSDL服务器阻止，所以在执行该过程时，WSDL服务器会向测试服务器返回一个错误。

我不得不在设置中注释掉INTERNAL_IPS，以使这个错误消失。没什么意义，但我希望这能帮助到其他人

@bradley.ayers是对的。这个问题在suds库中。我在我的芹菜任务中使用了肥皂水==0.4。

解决方法：当我将celeryd进程的日志级别从DEBUG切换回INFO时，事情开始对我起作用。

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