使用Dreamhost共享主机上的Passenger WSGI无法运行Flask [英] Can't get Flask running using Passenger WSGI on Dreamhost shared hosting

问题描述

我试图在Dreamhost共享服务器上运行一个Flaskhello world应用程序，遵循他们的wiki ，但我没有任何运气。

我的Flask应用程序是来自

  > from flask import Flask 
 app = Flask（__ name__）
 
 @ app.route（'/'）
 def hello_world（）：
 return'Hello World！ '
 
 if __name__ =='__main__'：
 app.run（）
  

根据DH wiki的说明，我在一个名为mysite的文件夹中有一个名为hello.py的文件。我的passenger_wsgi.py文件是：

  import sys，os 
 INTERP = os.path.join（os.environ如果sys.exe可用！= INTERP：
 os.execl（INTERP，INTERP，* sys.argv）
 $'$'$'$' b sys.path.append（os.getcwd（））$ b $ mysite从应用程序导入hello 
  

<我已经尝试在Python控制台中运行这些命令，并且最后一次导入行失败，直到我将 __ init __。py 文件添加到mysite目录。 b
$ b

当我尝试访问网站时，我得到了一个500错误（不幸的是，在日志中没有任何东西，除非它们在日志中，我无法得到，因为这是一个共享服务器。 ..）。

由于这是最基本的设置（即从wiki复制和粘贴），我不禁感到，我失去了一些东西真的很简单。或者也许这是不可能在共享服务器上？

解决方案

回答我自己的问题意味着我正在跟自己说话吗？

无论如何 - 我似乎已经修好了。而不是找到一个很好的有用的错误消息，我一次又一次地经历了所有的步骤，事实证明这是 passenger_wsgi.py 文件中的导入错误。由于该应用程序位于 mysite 子目录中，因此：

 来自mysite import hello as application 
  

应该已经（实际上现在是）：

  from mysite.hello导入应用程序作为应用程序
  

它的工作原理。这很好。

I'm trying to get a Flask "hello world" application working on a Dreamhost shared server, following the instructions on their wiki, but I'm not having any luck.

My Flask application is the "hello world" one from the Flask quickstart guide:

from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello World!'

if __name__ == '__main__':
    app.run()

Which I've got in a file called "hello.py" in a folder called mysite, as per the DH wiki instructions. My passenger_wsgi.py file is:

import sys, os
INTERP = os.path.join(os.environ['HOME'], 'flask_env', 'bin', 'python')
if sys.executable != INTERP:
    os.execl(INTERP, INTERP, *sys.argv)
sys.path.append(os.getcwd())
from mysite import hello as application

I've tried running the commands in a Python console, and last import line failed until I added the __init__.py file to the mysite directory.

When I try and access the website I just get a 500 error (and nothing in the logs unfortunately, unless they're in logs I can't get to as this is a shared server...).

As this is the most basic of setups (i.e., copied and pasted from a wiki), I can't help feeling that I'm missing something really simple. Or perhaps this isn't possible on a shared server?

解决方案

Does answering my own question mean I'm talking to myself?

Anyway - I seem to have fixed it. Rather than find a nice helpful error message, I went through all the steps again one at a time, and it turns out it was an import error in the passenger_wsgi.py file. As the app is in the mysite subdirectory, the line:

from mysite import hello as application

should have been (and in fact, now is):

from mysite.hello import app as application

And it works. Which is nice.

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