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Flask应用程序部署 - ImportError：没有名为“app”的模块

本文介绍了Flask应用程序部署 - ImportError：没有名为“app”的模块的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

奇怪的一个 - 我已经尝试过，并试图让这个Flask应用程序 - 东西似乎出了错。



$ pwd 在Flask应用程序中给出：

/home/winduplordvexxos/winduplordvexxos.com/windupflaskvexxos

$ ls 给出： 

  __ init__.py __pycache__ vexxos.py 
  c>是空的。  
 
 
  vexxos.py ：
 
 
 从烧瓶导入烧瓶
 
 app =烧瓶（__ name__）
 
 @ app.route（'/'）
 def api（）：
 return'上传Vexxos API'
 
 if __name__ ==__main__：
 app.run（host ='0.0.0.0'）
  
  windupflaskvexxos.wsgi ： 
 
 
  activate_this ='/home/winduplordvexxos/winduplordvexxos.com/winduplordvexxos_env/bin/activate_this.py'
 with open（activate_this）as file_：
 exec（file_.read（），dict（__ file __ =激活这个））
 
导入os，sys 
 
 cwd = os.getcwd（）
 sys.path.insert（0，cwd）
 
从.vexxos导入应用程序中的
作为应用程序
除了例外情况：#ImportError $ b $从vexxos导入应用程序作为应用程序
   
 
  
 
 
 
  /etc/apache2/site-available/000-default.conf ： 
 
 
 < VirtualHost *：80> ; 
 
 ServerAlias flask.winduplordvexxos.com 
 ServerAdmin [email protected] 
 
 WSGIDaemonProcess windupflaskvexxos.com user = winduplordvexxos group = winduplordvexxos threads = 5 
 WSGIScriptAlias / /home/winduplordvexxos/winduplordvexxos.com/windupflaskvexxos/windupflaskvexxos.wsgi 
 
< Directory /home/winduplordvexxos/winduplordvexxos.com/windupflaskvexxos/> 
 WSGIProcessGroup windupflaskvexxos.com 
 WSGIApplicationGroup％{GLOBAL} 
 WSGIScriptReloading On 
要求所有被授予
  
< / VirtualHost> 
  
检查apache错误日志给了我：
  [Fri Oct 13 23：05：14.650945 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] mod_wsgi（pid = 15561）：目标WSGI脚本'/ home / winduplordve $ 
 [Fri Oct 13 23：05：14.651088 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] mod_wsgi（pid = 15561） ：处理WSGI scr $ 
 [Fri Oct 13 23：05：14.657996 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] Traceback（最近一次调用的最后一个）： 
 [Fri Oct 13 23：05：14.658060 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] File/home/winduplordvexxos/winduplordvexxos.com/windupfl$ 
 [Fri Oct 13 23：05：14.658071 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] from .vexxos import app as application 
 [Fri Oct 13 23： 05：14.658098 2017] [wsgi：error] [pid 15561：tid 1 40103054321408] [remote 109.149.163.9:59859] SystemError：父模块''未加载，无法执行rel $ 
 [Fri Oct 13 23：05：14.658131 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] 
 [Fri Oct 13 23：05：14.658146 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859]在处理上述异常期间，另一个例外事件$ 
 [Fri Oct 13 23：05：14.658156 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] 
 [Fri Oct 13 23:05 ：14.658180 2017] [wsgi：error] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859]追溯（最近一次通话最后）：
 [Fri Oct 13 23：05：14.658229 2017] [wsgi：错误] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859]文件/home/winduplordvexxos/winduplordvexxos.com/windupfl$ 
 [Fri Oct 13 23：05：14.658248 2017] [wsgi：error]从vexxos导入应用程序[bid 15561：tid 140103054321408] [remote 109.149.163.9:59859]作为应用程序
 [Fri 10月13日23：05：14.658286 2017] [wsgi：错误] [pid 15561：tid 140103054321408] [remote 109.149.163.9:59859] ImportError：没有模块名为'vexxos'
 [Fri Oct 13 23：05：14.690252 [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] mod_wsgi（pid = 15561）：Target WSGI script'/ home / winduplordve $ 
 [Fri Oct 13 23:05： 14.690318 2017] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] mod_wsgi（pid = 15561）：处理WSGI scr $ 
 [Fri Oct 13 23：05：14.690468 2017 [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858]追踪（最近一次通话最后）：
 [Fri Oct 13 23：05：14.690515 2017] [wsgi：error] [wsgi：error] [ pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] File/home/winduplordvexxos/winduplordvexxos.com/windupfl$ 
 [Fri Oct 13 23：05：14.690525 2017] [wsgi：error] [pid 15561 ：tid 140103087892224] [remote 109.149.163.9：59858] from .vexxos import app as application 
 [Fri Oct 13 23：05：1 [错误] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] SystemError：父模块''未加载，无法执行$ 
 [Fri Oct 13 23：05：14.690566 2017 ] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] 
 [Fri Oct 13 23：05：14.690573 2017] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858]在处理上述异常期间，另一个异常oc $ 
 [Fri Oct 13 23：05：14.690577 2017] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9： 59858] 
 [Fri Oct 13 23：05：14.690589 2017] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858]追踪（最近一次调用最后）：
 [ Fri Oct 13 23：05：14.690610 2017] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] File/home/winduplordvexxos/winduplordvexxos.com/windupfl$ 
 [Fri Oct 13 23：05：14.690619 2017] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] from vexxos导入应用程序
 [Fri Oct 13 23：05：14.690637 2017] [wsgi：error] [pid 15561：tid 140103087892224] [remote 109.149.163.9:59858] ImportError：没有名为'vexxos'的$ b $ $ b  
我已经尝试了很多东西，除了在模块导入等尝试，但似乎没有任何工作..有人可以帮忙吗？
 
解决方案您可能需要告诉mod_wsgi您的代码正在使用 python-path 选项到 WSGIDaemonProcess 。您在WSGI脚本文件中的导入也看起来是错误的。 
 
 
对于 python-path 您可能想要：
  python-path = / home / winduplordvexxos / winduplordvexxos.com 
  
导入应该是：
 从windupflaskvexxos导入应用程序作为应用程序
  
或者 app 不被 
 $ b $ p $  $ c> __ init __。py  $ b  
还请阅读使用mod_wsgi设置虚拟环境的首选方法。您使用的方式不是推荐的方式。
 
 
 
     
     
  •   
    •  
     
 
Strange one - I've tried and tried to get this Flask app going - something seems to be going wrong.
$ pwd inside the Flask app gives:
/home/winduplordvexxos/winduplordvexxos.com/windupflaskvexxos
$ ls inside the Flask app gives:
__init__.py  __pycache__  vexxos.py  windupflaskvexxos.wsgi

__init__.py is empty. 
vexxos.py:
from flask import Flask

app = Flask(__name__)

@app.route('/')
def api():
 return 'Wind Up Lord Vexxos API'

if __name__ == "__main__":
    app.run(host='0.0.0.0')

windupflaskvexxos.wsgi:
activate_this = '/home/winduplordvexxos/winduplordvexxos.com/winduplordvexxos_env/bin/activate_this.py'
with open(activate_this) as file_:
    exec(file_.read(), dict(__file__=activate_this))

import os, sys

cwd = os.getcwd()
sys.path.insert(0, cwd)

try:
   from .vexxos import app as application
except Exception: #ImportError
   from vexxos import app as application

However, all I see on the front end is:
/etc/apache2/site-available/000-default.conf:
<VirtualHost *:80>

        ServerAlias flask.winduplordvexxos.com
        ServerAdmin [email protected]

        WSGIDaemonProcess windupflaskvexxos.com user=winduplordvexxos group=winduplordvexxos threads=5
        WSGIScriptAlias / /home/winduplordvexxos/winduplordvexxos.com/windupflaskvexxos/windupflaskvexxos.wsgi

        <Directory /home/winduplordvexxos/winduplordvexxos.com/windupflaskvexxos/>
          WSGIProcessGroup windupflaskvexxos.com
          WSGIApplicationGroup %{GLOBAL}
          WSGIScriptReloading On
          Require all granted
        </Directory>

</VirtualHost>

Checking the apache error logs has given me:
[Fri Oct 13 23:05:14.650945 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859] mod_wsgi (pid=15561): Target WSGI script '/home/winduplordve$
[Fri Oct 13 23:05:14.651088 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859] mod_wsgi (pid=15561): Exception occurred processing WSGI scr$
[Fri Oct 13 23:05:14.657996 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859] Traceback (most recent call last):
[Fri Oct 13 23:05:14.658060 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859]   File "/home/winduplordvexxos/winduplordvexxos.com/windupfl$
[Fri Oct 13 23:05:14.658071 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859]     from .vexxos import app as application
[Fri Oct 13 23:05:14.658098 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859] SystemError: Parent module '' not loaded, cannot perform rel$
[Fri Oct 13 23:05:14.658131 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859]
[Fri Oct 13 23:05:14.658146 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859] During handling of the above exception, another exception oc$
[Fri Oct 13 23:05:14.658156 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859]
[Fri Oct 13 23:05:14.658180 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859] Traceback (most recent call last):
[Fri Oct 13 23:05:14.658229 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859]   File "/home/winduplordvexxos/winduplordvexxos.com/windupfl$
[Fri Oct 13 23:05:14.658248 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859]     from vexxos import app as application
[Fri Oct 13 23:05:14.658286 2017] [wsgi:error] [pid 15561:tid 140103054321408] [remote 109.149.163.9:59859] ImportError: No module named 'vexxos'
[Fri Oct 13 23:05:14.690252 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858] mod_wsgi (pid=15561): Target WSGI script '/home/winduplordve$
[Fri Oct 13 23:05:14.690318 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858] mod_wsgi (pid=15561): Exception occurred processing WSGI scr$
[Fri Oct 13 23:05:14.690468 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858] Traceback (most recent call last):
[Fri Oct 13 23:05:14.690515 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858]   File "/home/winduplordvexxos/winduplordvexxos.com/windupfl$
[Fri Oct 13 23:05:14.690525 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858]     from .vexxos import app as application
[Fri Oct 13 23:05:14.690549 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858] SystemError: Parent module '' not loaded, cannot perform rel$
[Fri Oct 13 23:05:14.690566 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858]
[Fri Oct 13 23:05:14.690573 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858] During handling of the above exception, another exception oc$
[Fri Oct 13 23:05:14.690577 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858]
[Fri Oct 13 23:05:14.690589 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858] Traceback (most recent call last):
[Fri Oct 13 23:05:14.690610 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858]   File "/home/winduplordvexxos/winduplordvexxos.com/windupfl$
[Fri Oct 13 23:05:14.690619 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858]     from vexxos import app as application
[Fri Oct 13 23:05:14.690637 2017] [wsgi:error] [pid 15561:tid 140103087892224] [remote 109.149.163.9:59858] ImportError: No module named 'vexxos'

I've tried a number of things, try except on the module import etc but nothing seems to work...can anyone help with this?
 解决方案 
You likely need to tell mod_wsgi where your code is using the python-path option to WSGIDaemonProcess. Your import in the WSGI script file also looks wrong.
For python-path you likely want:
python-path=/home/winduplordvexxos/winduplordvexxos.com

The import should then be:
from windupflaskvexxos import app as application

or if app not pulled in by __init__.py, use:
from windupflaskvexxos.vexxos import app as application

Also read up on the preferred way of setting up a virtual environment with mod_wsgi. The way you are using is not the recommended way.
                        
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08-20 07:15
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