当我进行单元测试时，我希望能够设置和访问flask.g。
flask.g['test'] = {'test': '123'}
test_dict = flask.g['test']
产生此错误：
Error
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/werkzeug/local.py", line 346, in __setitem__
self._get_current_object()[key] = value
TypeError: '_AppCtxGlobals' object does not support item assignment
但是，当我在生产中运行时，一切正常。如果我使用setattr和getattr，则单元测试有效，但生产中断，
我收到以下错误
Error
Traceback (most recent call last):
File "/usr/local/lib/python2.7/dist-packages/flask_restful/__init__.py", line 268, in error_router
return self.handle_error(e)
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1475, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/local/lib/python2.7/dist-packages/flask/app.py", line 1461, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/usr/local/lib/python2.7/dist-packages/flask_restful/__init__.py", line 477, in wrapper
resp = resource(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/flask/views.py", line 84, in view
return self.dispatch_request(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/flask_restful/__init__.py", line 587, in dispatch_request
resp = meth(*args, **kwargs)
args = getattr(flask.g, 'test')
AttributeError: 'dict' object has no attribute 'test'
我在app_context()中运行unittest。目标是进行实际代表生产的单元测试。我怎么能得到这个？
答案 0 :(得分：4)
这两个用法现在是等价的
user = getattr(flask.g, 'user', None)
user = flask.g.get('user', None)
用法示例
def get_user():
user = getattr(g, 'user', None)
if user is None:
user = fetch_current_user_from_database()
g.user = user
return user