我使用Django 1.11创建一个网站。当我运行本地主机http://127.0.0.1:8000/然后错误“TypeError at / 上下文必须是dict而不是unicode。 “我不知道如何解决它。
攻击行：make_context第287行中的\ venv \ lib \ site-packages \ django \ template \ context.py
整个视图 context.py的代码 进口警告 来自contextlib import contextmanager 来自复制导入副本
来自django.utils.deprecation import RemovedInDjango20Warning
_builtin_context_processors =（'django.template.context_processors.csrf'，）
类ContextPopException（Exception）： “pop（）被调用的次数多于push（）” 通
类ContextDict（dict）： def init （self，context，* args，** kwargs）： super（ContextDict，self）。 init （* args，** kwargs）
>class BaseContext（object）： def init （self，dict_ = None）： self._reset_dicts（字典_）
context.dicts.append(self)
self.context = context
def __enter__(self):
return self
def __exit__(self, *args, **kwargs):
self.context.pop()
类Context（BaseContext）： “用于变量上下文的堆栈容器” def init （self，dict_ = None，autoescape = True，use_l10n = None，use_tz = None）： self.autoescape = autoescape self.use_l10n = use_l10n self.use_tz = use_tz self.template_name =“unknown” self.render_context = RenderContext（） ＃设置为原始模板 - 而不是扩展或包含 ＃templates - 在渲染过程中，请参阅bind_template。 self.template =无 super（Context，self）。 init （dict _）
def _reset_dicts(self, value=None):
builtins = {'True': True, 'False': False, 'None': None}
self.dicts = [builtins]
if value is not None:
self.dicts.append(value)
def __copy__(self):
duplicate = copy(super(BaseContext, self))
duplicate.dicts = self.dicts[:]
return duplicate
def __repr__(self):
return repr(self.dicts)
def __iter__(self):
for d in reversed(self.dicts):
yield d
def push(self, *args, **kwargs):
dicts = []
for d in args:
if isinstance(d, BaseContext):
dicts += d.dicts[1:]
else:
dicts.append(d)
return ContextDict(self, *dicts, **kwargs)
def pop(self):
if len(self.dicts) == 1:
raise ContextPopException
return self.dicts.pop()
def __setitem__(self, key, value):
"Set a variable in the current context"
self.dicts[-1][key] = value
def set_upward(self, key, value):
"""
Set a variable in one of the higher contexts if it exists there,
otherwise in the current context.
"""
context = self.dicts[-1]
for d in reversed(self.dicts):
if key in d.keys():
context = d
break
context[key] = value
def __getitem__(self, key):
"Get a variable's value, starting at the current context and going upward"
for d in reversed(self.dicts):
if key in d:
return d[key]
raise KeyError(key)
def __delitem__(self, key):
"Delete a variable from the current context"
del self.dicts[-1][key]
def has_key(self, key):
warnings.warn(
"%s.has_key() is deprecated in favor of the 'in' operator." % self.__class__.__name__,
RemovedInDjango20Warning
)
return key in self
def __contains__(self, key):
for d in self.dicts:
if key in d:
return True
return False
def get(self, key, otherwise=None):
for d in reversed(self.dicts):
if key in d:
return d[key]
return otherwise
def setdefault(self, key, default=None):
try:
return self[key]
except KeyError:
self[key] = default
return default
def new(self, values=None):
"""
Returns a new context with the same properties, but with only the
values given in 'values' stored.
"""
new_context = copy(self)
new_context._reset_dicts(values)
return new_context
def flatten(self):
"""
Returns self.dicts as one dictionary
"""
flat = {}
for d in self.dicts:
flat.update(d)
return flat
def __eq__(self, other):
"""
Compares two contexts by comparing theirs 'dicts' attributes.
"""
if isinstance(other, BaseContext):
# because dictionaries can be put in different order
# we have to flatten them like in templates
return self.flatten() == other.flatten()
# if it's not comparable return false
return False
类RenderContext（BaseContext）： “”” 用于存储模板状态的堆栈容器。
@contextmanager
def bind_template(self, template):
if self.template is not None:
raise RuntimeError("Context is already bound to a template")
self.template = template
try:
yield
finally:
self.template = None
def __copy__(self):
duplicate = super(Context, self).__copy__()
duplicate.render_context = copy(self.render_context)
return duplicate
def update(self, other_dict):
"Pushes other_dict to the stack of dictionaries in the Context"
if not hasattr(other_dict, '__getitem__'):
raise TypeError('other_dict must be a mapping (dictionary-like) object.')
if isinstance(other_dict, BaseContext):
other_dict = other_dict.dicts[1:].pop()
return ContextDict(self, other_dict)
类RequestContext（Context）： “”” template.Context的这个子类自动使用填充自身 引擎配置中定义的处理器。 可以将其他处理器指定为可调用的列表 使用“processors”关键字参数。 “”” def init （self，request，dict_ = None，processors = None，use_l10n = None，use_tz = None，autoescape = True）： super（RequestContext，self）。 init （ dict_，use_l10n = use_l10n，use_tz = use_tz，autoescape = autoescape） self.request =请求 self._processors =（）如果处理器是None否则tuple（处理器） self._processors_index = len（self.dicts）
RenderContext simplifies the implementation of template Nodes by providing a
safe place to store state between invocations of a node's `render` method.
The RenderContext also provides scoping rules that are more sensible for
'template local' variables. The render context stack is pushed before each
template is rendered, creating a fresh scope with nothing in it. Name
resolution fails if a variable is not found at the top of the RequestContext
stack. Thus, variables are local to a specific template and don't affect the
rendering of other templates as they would if they were stored in the normal
template context.
"""
template = None
def __iter__(self):
for d in self.dicts[-1]:
yield d
def __contains__(self, key):
return key in self.dicts[-1]
def get(self, key, otherwise=None):
return self.dicts[-1].get(key, otherwise)
def __getitem__(self, key):
return self.dicts[-1][key]
@contextmanager
def push_state(self, template, isolated_context=True):
initial = self.template
self.template = template
if isolated_context:
self.push()
try:
yield
finally:
self.template = initial
if isolated_context:
self.pop()
def make_context（context，request = None，** kwargs）： “”” 从普通字典和可选的HttpRequest创建合适的上下文。 “”” 如果context不是None而不是isinstance（context，dict）： 提出TypeError（'上下文必须是dict而不是％s。'％context。 class 。 name ）// 287 如果请求是无： context = Context（context，** kwargs） 其他： ＃需要以下模式来确保来自的值 #context覆盖模板上下文处理器中的那些。 original_context = context context = RequestContext（request，** kwargs） 如果original_context： context.push（original_context） 返回上下文
答案 0 :(得分：1)
将上下文传递给模板，确保它是字典而不是字符串