Question

我想在我的django app引擎项目上创建一个新的超级用户，以获得对内置管理功能的访问权限。每次我跑的时候

python manage.py createsuperuser

我收到错误消息“”'NoneType'对象没有属性'mkstemp'“”

我试图重新安装django python和app引擎sdk，没有运气，我将项目移动到一个目录中，其路径中没有非ascii字母，因为我担心这可能是问题的原因，同样，没有运气......我没有想法......

这是抛出异常的完整回溯：

Traceback (most recent call last):
File "manage.py", line 11, in <module>
execute_manager(settings)
File "C:\empeeric\pickadeal\django\core\management\__init__.py", line 438, in execute_manager
utility.execute()
File "C:\empeeric\pickadeal\django\core\management\__init__.py", line 379, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\empeeric\pickadeal\django\core\management\base.py", line 191, in run_from_argv
self.execute(*args, **options.__dict__)
File "C:\empeeric\pickadeal\django\core\management\base.py", line 220, in execute
output = self.handle(*args, **options)
File "C:\empeeric\pickadeal\django\contrib\auth\management\commands\createsuperuser.py", line 72, in handle
User.objects.get(username=default_username)
File "C:\empeeric\pickadeal\django\db\models\manager.py", line 132, in get
return self.get_query_set().get(*args, **kwargs)
File "C:\empeeric\pickadeal\django\db\models\query.py", line 346, in get
num = len(clone)
File "C:\empeeric\pickadeal\django\db\models\query.py", line 82, in __len__
self._result_cache = list(self.iterator())
File "C:\empeeric\pickadeal\django\db\models\query.py", line 275, in iterator
for row in compiler.results_iter():
File "C:\empeeric\pickadeal\djangotoolbox\db\basecompiler.py", line 229, in results_iter
for entity in self.build_query(fields).fetch(low_mark, high_mark):
File "C:\empeeric\pickadeal\djangotoolbox\db\basecompiler.py", line 289, in build_query
query.add_filters(self.query.where)
File "C:\empeeric\pickadeal\djangotoolbox\db\basecompiler.py", line 74, in add_filters
self.add_filters(child)
File "C:\empeeric\pickadeal\djangotoolbox\db\basecompiler.py", line 78, in add_filters
self.add_filter(column, lookup_type, self._negated, db_type, value)
File "C:\empeeric\pickadeal\djangoappengine\db\compiler.py", line 61, in _func
return func(*args, **kwargs)
File "C:\empeeric\pickadeal\djangoappengine\db\compiler.py", line 271, in add_filter
self._add_filter(column, op, db_type, value)
File "C:\empeeric\pickadeal\djangoappengine\db\compiler.py", line 279, in _add_filter
value = self.convert_value_for_db(db_type, value)
File "C:\empeeric\pickadeal\djangotoolbox\db\basecompiler.py", line 209, in convert_value_for_db
return self.compiler.convert_value_for_db(db_type, value)
File "C:\empeeric\pickadeal\djangoappengine\db\compiler.py", line 445, in convert_value_for_db
value = value.decode('utf-8') if isinstance(value, str) else value
File "C:\hp\bin\Python\lib\encodings\utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode bytes in position 0-4: unsupported Unicode code range
Exception exceptions.AttributeError: "'NoneType' object has no attribute 'mkstemp'" in <bound method DatastoreFileStub.__del__ of <google.appengine.api.datasto
e_file_stub.DatastoreFileStub object at 0x02277890>> ignored

任何？

Answer 1

由于您尚未向其传递任何参数，因此createsuperuser.py使用Python getpass模块来获取默认用户名。（第59行，createsuperuser.py）：

        # Try to determine the current system user's username to use as a default.
    try:
        default_username = getpass.getuser().replace(' ', '').lower()
    except (ImportError, KeyError):
        # KeyError will be raised by os.getpwuid() (called by getuser())
        # if there is no corresponding entry in the /etc/passwd file
        # (a very restricted chroot environment, for example).
        default_username = ''

似乎我getpass.getuser（）没有返回可由Python的UTF-8解码器解码的字符串。我的猜测是Windows安装上的默认用户名是用一些较旧的非unicode 8位编码编码的。也许你的默认Windows用户名中有一些带重音的字符，例如。？

显然已经在Django的主分支上报告了这个错误，所以这里记录的一个解决方法也许可以帮到你：

https://code.djangoproject.com/ticket/15778

由于非ascii字符，Django non-rel createsuperuser失败

1 个答案: