AWS上的Opencv/Flask应用程序AMI

我试图在AWS AMI上运行一个应该使用OpenCV库的简单应用程序。我创建了一个虚拟机，并安装了OpenCV。对于安装，我遵循本教程http://www.pyimagesearch.com/2015/06/22/install-opencv-3-0-and-python-2-7-on-ubuntu/，似乎也可以，因为我能够运行该示例。AWS上的Opencv/Flask应用程序AMI

[Tue Sep 20 09:58:14.117753 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] Traceback (most recent call last): 
[Tue Sep 20 09:58:14.117778 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] File "/var/www/flaskapp/app.wsgi", line 25, in <module> 
[Tue Sep 20 09:58:14.117822 2016] [:error] [pid 15068] [remote 77.246.17.229:18121]  from app import app as application 
[Tue Sep 20 09:58:14.117831 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] File "/var/www/flaskapp/app.py", line 13, in <module> 
[Tue Sep 20 09:58:14.117878 2016] [:error] [pid 15068] [remote 77.246.17.229:18121]  from flask import (Flask, abort, flash, g, jsonify, make_response, render_template, request, session, url_for) 
[Tue Sep 20 09:58:14.117887 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] File "/var/www/flaskapp/env/lib/python2.7/site-packages/flask/__init__.py", line 19, in <module> 
[Tue Sep 20 09:58:14.117916 2016] [:error] [pid 15068] [remote 77.246.17.229:18121]  from jinja2 import Markup, escape 
[Tue Sep 20 09:58:14.117923 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] File "/var/www/flaskapp/env/lib/python2.7/site-packages/jinja2/__init__.py", line 33, in <module> 
[Tue Sep 20 09:58:14.117951 2016] [:error] [pid 15068] [remote 77.246.17.229:18121]  from jinja2.environment import Environment, Template 
[Tue Sep 20 09:58:14.117965 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] File "/var/www/flaskapp/env/lib/python2.7/site-packages/jinja2/environment.py", line 13, in <module> 
[Tue Sep 20 09:58:14.118148 2016] [:error] [pid 15068] [remote 77.246.17.229:18121]  from jinja2 import nodes 
[Tue Sep 20 09:58:14.118157 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] File "/var/www/flaskapp/env/lib/python2.7/site-packages/jinja2/nodes.py", line 19, in <module> 
[Tue Sep 20 09:58:14.118287 2016] [:error] [pid 15068] [remote 77.246.17.229:18121]  from jinja2.utils import Markup 
[Tue Sep 20 09:58:14.118296 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] File "/var/www/flaskapp/env/lib/python2.7/site-packages/jinja2/utils.py", line 531, in <module> 
[Tue Sep 20 09:58:14.118418 2016] [:error] [pid 15068] [remote 77.246.17.229:18121]  from markupsafe import Markup, escape, soft_unicode 
[Tue Sep 20 09:58:14.118436 2016] [:error] [pid 15068] [remote 77.246.17.229:18121] ImportError: No module named markupsafe

，但我查了所有的命令在虚拟机上安装的模块PIP冻结我得到如下：当我尝试运行我的长颈瓶的应用程序，因为我发现了以下错误，就会出现问题

click==6.6 
Flask==0.11.1 
itsdangerous==0.24 
Jinja2==2.8 
MarkupSafe==0.23 
numpy==1.11.1 
Werkzeug==0.11.11

因此，MarkupSafe安装并更新了最新版本。

于是开始思考这个问题可能是我的.wgsi文件或在httpd.conf 这里app.wsgi：

import sys 
import site 
import os 

# Add virtualenv site packages 
site.addsitedir(os.path.join(os.path.dirname(__file__), '/var/www/flaskapp/env/lib/python2.7/site-packages')) 

#activate_this = '/var/www/flaskapp/env/bin/activate_this.py' 
#execfile(activate_this, dict(__file__=activate_this)) 

# Path of execution 
sys.path.insert(0,'/var/www/flaskapp') 

#import the app 
from app import app as application

而这一次是在httpd.conf：听80

<VirtualHost *> 
     ServerName ec2... 
     WSGIDaemonProcess app threads=5 home=/var/www/flaskapp/ python-path=/var/www/flaskapp/env/lib/python2.7/site-packages threads=1 

     DocumentRoot /var/www/flaskapp 

     WSGIScriptAlias//var/www/flaskapp/app.wsgi 
     <Directory /var/www/flaskapp> 
       WSGIProcessGroup app 
       WSGIApplicationGroup %{GLOBAL} 
       Order deny,allow 
       Allow from all 
     </Directory> 
</VirtualHost>

但我无法弄清楚这个问题。任何想法为什么我得到这个错误？

如果我试图将我的app.wgsi引用到lib64而不是只是lib，则错误将变为：ImportError：numpy.core.multiarray无法导入。我检查了lib和lib64中的differente站点包，并且我有这种配置：

lib： click-easy_install.pyc - itsdangerous.py - markerlib - setuptools - click-6.6-py2.7.egg-info - flask - itsdangerous.pyc - pip - setuptools-12.0.5.dist-info - cv2.so - Flask-0.11.1.dist-info - jinja2 - pip-6.0.8.dist-info - werkzeug - easy_install.py - itsdangerous-0.24-py2.7.egg - 信息 - Jinja2-2.8.dist - 信息 - 通过pkg_resources - WERKZEUG-0.11.11.dist-信息

而在lib64的我： markupsafe MarkupSafe-0.23-PY2。 7.egg-info numpy numpy-1.11.1-py2.7.egg-info

看来莫d_wsgi为python 2.6.9配置，我使用python 2.7。这可能是问题吗？

来源

2016-09-20 Thomas

你不能为Python 2.6编译mod_wsgi，并尝试强制它使用Python 2.7的Python虚拟环境。您将需要卸载mod_wsgi并从二进制包或源代码重新安装，但是它是为Python 2.7编译的。这不是修改使用什么版本的Python的配置选项。必须为正确的Python版本进行编译才能开始。

来源

2016-09-20 23:23:05

AWS上的Opencv/Flask应用程序AMI

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