flask-admin基本示例抛出builtins.AttributeError异常

Question

不知道我在做什么错。我遵循flask-admin的快速入门指南（link），并试图运行初始化section下提供的基本示例。当我运行该代码，浏览到本地主机：5000 /管理/我收到以下错误

builtins.AttributeError
AttributeError的：“对于”对象有没有属性“测试”

有详细如果有帮助，我也可以粘贴异常堆栈。

我怀疑依赖项丢失，并试图重新安装flask-admin，但它没有帮助。这里是我的点子冻结输出：

$ pip freeze 
APScheduler==3.3.1 
click==6.7 
dominate==2.3.1 
Flask==0.12.2 
Flask-Admin==1.5.0 
Flask-APScheduler==1.7.0 
Flask-Bootstrap==3.3.7.1 
Flask-SQLAlchemy==2.2 
itsdangerous==0.24 
Jinja2==2.9.6 
MarkupSafe==1.0 
python-dateutil==2.6.1 
pytz==2017.2 
six==1.10.0 
SQLAlchemy==1.1.13 
SQLAlchemy-Utils==0.32.14 
tzlocal==1.4 
visitor==0.1.3 
Werkzeug==0.12.2 
WTForms==2.1 

我使用python 3.6.1

我的代码是完全一样的例子：

from flask import Flask 
from flask.ext.admin import Admin 

app = Flask(__name__) 

admin = Admin(app) 

app.run() 

这是异常堆栈：

Traceback (most recent call last): 
     File "c:\project\.venv\lib\site-packages\flask\app.py", line 1982, in wsgi_app 
     response = self.full_dispatch_request() 
     File "c:\project\.venv\lib\site-packages\flask\app.py", line 1614, in full_dispatch_request 
     rv = self.handle_user_exception(e) 
     File "c:\project\.venv\lib\site-packages\flask\app.py", line 1517, in handle_user_exception 
     reraise(exc_type, exc_value, tb) 
     File "c:\project\.venv\lib\site-packages\flask\_compat.py", line 33, in reraise 
     raise value 
     File "c:\project\.venv\lib\site-packages\flask\app.py", line 1612, in full_dispatch_request 
     rv = self.dispatch_request() 
     File "c:\project\.venv\lib\site-packages\flask\app.py", line 1598, in dispatch_request 
     return self.view_functions[rule.endpoint](**req.view_args) 
     File "c:\project\.venv\lib\site-packages\flask_admin\base.py", line 69, in inner 
     return self._run_view(f, *args, **kwargs) 
     File "c:\project\.venv\lib\site-packages\flask_admin\base.py", line 368, in _run_view 
     return fn(self, *args, **kwargs) 
     File "c:\project\.venv\lib\site-packages\flask_admin\base.py", line 452, in index 
     return self.render(self._template) 
     File "c:\project\.venv\lib\site-packages\flask_admin\base.py", line 308, in render 
     return render_template(template, **kwargs) 
     File "c:\project\.venv\lib\site-packages\flask\templating.py", line 134, in render_template 
     context, ctx.app) 
     File "c:\project\.venv\lib\site-packages\flask\templating.py", line 116, in _render 
     rv = template.render(context) 
     File "c:\project\.venv\lib\site-packages\jinja2\asyncsupport.py", line 76, in render 
     return original_render(self, *args, **kwargs) 
     File "c:\project\.venv\lib\site-packages\jinja2\environment.py", line 1008, in render 
     return self.environment.handle_exception(exc_info, True) 
     File "c:\project\.venv\lib\site-packages\jinja2\environment.py", line 780, in handle_exception 
     reraise(exc_type, exc_value, tb) 
     File "c:\project\.venv\lib\site-packages\jinja2\_compat.py", line 37, in reraise 
     raise value.with_traceback(tb) 
     File "c:\project\.venv\lib\site-packages\flask_admin\templates\bootstrap2\admin\index.html", line 1, in top-level template code 
     {% extends 'admin/master.html' %} 
     File "c:\project\.venv\lib\site-packages\flask_admin\templates\bootstrap2\admin\master.html", line 1, in top-level template code 
     {% extends admin_base_template %} 
     File "c:\project\.venv\lib\site-packages\jinja2\environment.py", line 543, in _generate 
     optimized=self.optimized) 
     File "c:\project\.venv\lib\site-packages\jinja2\compiler.py", line 82, in generate 
     generator.visit(node) 
     File "c:\project\.venv\lib\site-packages\jinja2\visitor.py", line 38, in visit 
     return f(node, *args, **kwargs) 
     File "c:\project\.venv\lib\site-packages\jinja2\compiler.py", line 772, in visit_Template 
     self.blockvisit(block.body, block_frame) 
     File "c:\project\.venv\lib\site-packages\jinja2\compiler.py", line 372, in blockvisit 
     self.visit(node, frame) 
     File "c:\project\.venv\lib\site-packages\jinja2\visitor.py", line 38, in visit 
     return f(node, *args, **kwargs) 
     File "c:\project\.venv\lib\site-packages\jinja2\compiler.py", line 1130, in visit_If 
     self.blockvisit(node.body, if_frame) 
     File "c:\project\.venv\lib\site-packages\jinja2\compiler.py", line 372, in blockvisit 
     self.visit(node, frame) 
     File "c:\project\.venv\lib\site-packages\jinja2\visitor.py", line 38, in visit 
     return f(node, *args, **kwargs) 
     File "c:\project\.venv\lib\site-packages\jinja2\compiler.py", line 1014, in visit_For 
     if node.test: 
    AttributeError: 'For' object has no attribute 'test' 

将不胜感激任何意见。

Answer 1

我怀疑我搞砸了我的venv莫名其妙。我再次尝试使用全新的Venv，安装了所有软件包，现在一切正常。希望这可以帮助某人。