Flask错误的故障排除是werkzeug路由
Flask错误的故障排除是werkzeug路由
提问于 2019-05-14 17:43:34
我正在按照一个教程来做最简单的"Hello World“Flask应用程序，如https://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-i-hello-world所述：
对于上下文，我在C驱动器的根目录下创建了目录，以避免潜在的路径问题。我正在运行Python 3.8、Flask 1.0.2和werkzeug 0.15.2
在发出flask命令之前，我要做两件事。创建虚拟环境并安装本地flask版本
$ python -m venv venv
$ venv\Scripts\activate
(venv) $ pip install flask并设置FLASK_APP环境变量
(venv) $ set FLASK_APP=microblog.py当我发出"flask run“命令时，顶层脚本就会运行(内容在这里)
from app import app它调用app文件夹中的__init__.py文件，该文件夹包含：
from flask import Flask
app = Flask(__name__) #The name "app" is being passed
from app import routes第二行失败，并显示以下错误输出：
Traceback (most recent call last):
File "C:\Python38\lib\runpy.py", line 192, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Python38\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\microblog\venv\Scripts\flask.exe\__main__.py", line 9, in <module>
File "c:\microblog\venv\lib\site-packages\flask\cli.py", line 894, in main
cli.main(args=args, prog_name=name)
File "c:\microblog\venv\lib\site-packages\flask\cli.py", line 557, in main
return super(FlaskGroup, self).main(*args, **kwargs)
File "c:\microblog\venv\lib\site-packages\click\core.py", line 717, in main
rv = self.invoke(ctx)
File "c:\microblog\venv\lib\site-packages\click\core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "c:\microblog\venv\lib\site-packages\click\core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "c:\microblog\venv\lib\site-packages\click\core.py", line 555, in invoke
return callback(*args, **kwargs)
File "c:\microblog\venv\lib\site-packages\click\decorators.py", line 64, in new_func
return ctx.invoke(f, obj, *args, **kwargs)
File "c:\microblog\venv\lib\site-packages\click\core.py", line 555, in invoke
return callback(*args, **kwargs)
File "c:\microblog\venv\lib\site-packages\flask\cli.py", line 767, in run_command
app = DispatchingApp(info.load_app, use_eager_loading=eager_loading)
File "c:\microblog\venv\lib\site-packages\flask\cli.py", line 293, in __init__
self._load_unlocked()
File "c:\microblog\venv\lib\site-packages\flask\cli.py", line 317, in _load_unlocked
self._app = rv = self.loader()
File "c:\microblog\venv\lib\site-packages\flask\cli.py", line 372, in load_app
app = locate_app(self, import_name, name)
File "c:\microblog\venv\lib\site-packages\flask\cli.py", line 235, in locate_app
__import__(module_name)
File "c:\microblog\microblog.py", line 1, in <module>
from app import app
File "c:\microblog\app\__init__.py", line 5, in <module>
app = Flask(__name__) #The name "app" is being passed
File "c:\microblog\venv\lib\site-packages\flask\app.py", line 558, in __init__
self.add_url_rule(
File "c:\microblog\venv\lib\site-packages\flask\app.py", line 66, in wrapper_func
return f(self, *args, **kwargs)
File "c:\microblog\venv\lib\site-packages\flask\app.py", line 1216, in add_url_rule
self.url_map.add(rule)
File "c:\microblog\venv\lib\site-packages\werkzeug\routing.py", line 1562, in add
rule.bind(self)
File "c:\microblog\venv\lib\site-packages\werkzeug\routing.py", line 711, in bind
self.compile()
File "c:\microblog\venv\lib\site-packages\werkzeug\routing.py", line 767, in compile
self._build = self._compile_builder(False)
File "c:\microblog\venv\lib\site-packages\werkzeug\routing.py", line 1128, in _compile_builder
return self.BuilderCompiler(self).compile(append_unknown)
File "c:\microblog\venv\lib\site-packages\werkzeug\routing.py", line 1119, in compile
co = types.CodeType(*code_args)
TypeError: code() takes at least 14 arguments (13 given)除了下面的答案之外，请确保正确设置了PATH变量。在我的例子中，我有一个Anaconda安装和一个具有冲突版本的常规Python安装。最后，应用程序通过Anaconda提示符运行。要解决此类问题，请尝试将bash_profile中的Anaconda路径添加到windows的PATH变量中
祝你快乐:)！
回答 2
Stack Overflow用户
回答已采纳
发布于 2019-05-14 18:14:29
我已经让服务器启动并运行了。下面是我的项目结构：
.
├── app
│ ├── __init__.py
│ └── routes.py
├── microblog.py
└── venv下面是他在教程中提到的三个源文件
__init.py__⬇️
from flask import Flask
app = Flask(__name__)
from app import routesroutes.py⬇️
from app import app
@app.route('/')
@app.route('/index')
def index():
return "Hello, World!"microblog.py⬇️
from app import app在设置源代码之后，我运行了export FLASK_APP=microblog.py，然后运行了flask run。在flask run上，您应该看到如下所示：
下面是我这一端的依赖版本：
Stack Overflow用户
发布于 2020-05-17 03:09:41
看起来flask (werkzeug模块)与python3.8 github issue不兼容，如果你使用的是werkzeug <0.15.5，请考虑降级到python3.7(并将虚拟环境中的python3链接指向python3.7)或者将你的werkzeug模块升级到0.15.5或更高版本。
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原文链接：
https://stackoverflow.com/questions/56127413
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