Did you read:
http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html
<http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html>
as I linked to.
There is no evidence that you have added anything for a Python virtual
environment if you are using one.
Graham
> On 9 May 2017, at 4:25 AM, Brian <[email protected]> wrote:
>
> The conda environment must not be set correctly because it can't find flask:
>
> [Mon May 08 16:39:11.002873 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] Traceback (most recent call last):
>
>
>
> [Mon May 08 16:39:11.002923 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] File "/var/www/FlaskApp/flaskapp.wsgi", line
> 7, in <module>
>
> [Mon May 08 16:39:11.002989 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] from FlaskApp import app as application
>
> [Mon May 08 16:39:11.003012 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] File "/var/www/FlaskApp/FlaskApp/__init__.py",
> line 1, in <module>
>
> [Mon May 08 16:39:11.003044 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] from flask import Flask
>
> [Mon May 08 16:39:11.003081 2017] [:error] [pid 31696:tid 139896253531904]
> [client 208.184.3.194:36413] ImportError: No module named flask
>
>
> On Monday, May 8, 2017 at 11:45:31 AM UTC-6, Vanessa Marques wrote:
> Brian, check out /var/log/apache2/error.log to see the errors and let us know
> what is in there.
>
> I'm having the exact same challenge as you (trying to configure flask +
> apache + anaconda + mod_wsgi on an ubuntu EC2 instance).
>
> On Monday, May 8, 2017 at 1:59:16 PM UTC-3, Brian wrote:
> Thank you Graham.
>
> Any recs on testing and/or debugging a 500 internal server error when I try
> to hit the site? I'm assuming that it's in the configuration so I'm going to
> add full details of the process and config files below.
>
> All commands ran:
> ## build conda environment
>
> conda create --name test1.0 python==3.6.1 pandas jupyter requests flask
>
>
>
> ## activate conda environment
>
> source activate test1.0
>
>
> ## get apache2
>
> sudo apt-get install apache2
>
> sudo apt-get install apache2-dev
>
>
>
> ## get mod_wsgi
>
> #sudo apt-get install libapache2-mod-wsgi
>
> pip install mod_wsgi
>
>
>
> ## force load Anaconda's shared library
>
> mod_wsgi-express module-config
>
>
>
> ## enable mod_wsgi
>
> sudo a2enmod wsgi
>
>
>
> ## get git
>
> sudo apt-get install git
>
>
>
> ## create config for apache to know about wsgi and flask app
>
> touch /etc/apache2/sites-available/FlaskApp.conf
>
>
>
> ## disable default config
>
> sudo a2dissite 000-default
>
>
>
> ## provide new config
>
> sudo a2ensite FlaskApp.conf
>
>
>
> ## start/restart apache
>
> sudo service apache2 restart
>
>
> Contents of FlaskApp.conf:
> <VirtualHost *:80>
>
> ServerName <IPv4 PUBLIC IP>
>
> ServerAdmin ubuntu@<IPv4 PUBLIC
> IP>.us-west-2.compute.amazonaws.com <http://us-west-2.compute.amazonaws.com/>
> WSGIScriptAlias / /var/www/FlaskApp/flaskapp.wsgi
>
> <Directory /var/www/FlaskApp/FlaskApp/>
>
> Order allow,deny
>
> Allow from all
>
> </Directory>
>
> Alias /static /var/www/FlaskApp/FlaskApp/static
>
> <Directory /var/www/FlaskApp/FlaskApp/static/>
>
> Order allow,deny
>
> Allow from all
>
> </Directory>
>
> ErrorLog ${APACHE_LOG_DIR}/error.log
>
> LogLevel warn
>
> CustomLog ${APACHE_LOG_DIR}/access.log combined
>
> </VirtualHost>
>
>
> Location of flask app and .wsgi file.
> (test1.0) ubuntu:/var/www$ tree
>
> .
>
> ├── FlaskApp
>
> ├── FlaskApp
>
> │ ├── __init__.py
>
> │ ├── static
>
> │ └── templates
>
> └── flaskapp.wsgi
>
>
> Contents of flaskapp.wsgi:
> #!/usr/bin/python
>
> import sys
>
> import logging
>
> logging.basicConfig(stream=sys.stderr)
>
> sys.path.insert(0,"/var/www/FlaskApp/")
>
>
>
> from FlaskApp import app as application
>
> application.secret_key = '<secret>'
>
>
> Contents of __init__.py:
> from flask import Flask
>
> app = Flask(__name__)
>
> @app.route("/")
>
> def hello():
>
> return "Hello World (flask via conda env)!"
>
> if __name__ == "__main__":
>
> app.run()
>
>
> When visiting the site, I get a 500 internal server error. I likely messed up
> something with the config. Any help is greatly appreciated.
>
> Best,
> -Brian
>
> On Sunday, May 7, 2017 at 6:32:18 PM UTC-6, Graham Dumpleton wrote:
> In the first instance you should ensure things work with a WSGI hello world,
> no Flask framework. This ensures setup with Anaconda Python is okay, which
> sometimes doesn't always work because of stupid things Anaconda Python does
> which breaks the ability to use it in embedded systems.
>
> As to deploying Flask, the Flask documentation has details:
>
> * http://flask.pocoo.org/docs/0.12/deploying/mod_wsgi/
> <http://flask.pocoo.org/docs/0.12/deploying/mod_wsgi/>
>
> Also ensure you read:
>
> *
> http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html
>
> <http://modwsgi.readthedocs.io/en/develop/user-guides/virtual-environments.html>
>
> so you are setting up any Python virtual environment correctly as guides for
> frameworks often don't suggest the preferred method, or simply don't address
> it.
>
> Graham
>
>> On 7 May 2017, at 8:00 AM, Brian Lehman <[email protected] <>> wrote:
>>
>> Thanks Graham. So everything is installed. Being brand new to this world,
>> I'm looking for a tutorial to (and please forgive me as I'm likely using the
>> wrong terminology) see how to tell Apache to use mod_wsgi to run my flask
>> app. I'm guessing that I need to change some config files in Apache to use
>> my conda environment and then write some .wsgi file? However, I'm seeing
>> quite a few different threads on this subject. Any advice is greatly
>> appreciated.
>>
>> ## get apache2
>> sudo apt-get install apache2
>> sudo apt-get install apache2-dev
>>
>> ## get mod_wsgi
>> pip install mod_wsgi
>>
>> #force load Anaconda's shared library
>> mod_wsgi-express module-config
>>
>> ## start/restart apache
>> sudo service apache2 restart
>>
>> On Thursday, May 4, 2017 at 4:22:08 PM UTC-6, Graham Dumpleton wrote:
>> As per instructions in:
>>
>> https://pypi.python.org/pypi/mod_wsgi
>> <https://pypi.python.org/pypi/mod_wsgi>
>>
>> You need to ensure you have the 'dev' packages for Apache installed.
>>
>> If you are running Debian or Ubuntu Linux with Apache 2.4 system packages,
>> regardless of which Apache MPM is being used, you would need both:
>>
>> apache2
>> apache2-dev
>>
>> Note that if using Anaconda Python, after having installed mod_wsgi with
>> pip, ensure you run:
>>
>> mod_wsgi-express module-config
>>
>> to show the configuration you need to include in the system Apache if you
>> intend manually configuring it for mod_wsgi, instead of using
>> 'mod_wsgi-express start-server'.
>>
>> This is necessary as Anaconda Python can require extra configuration
>> directives to force load its shared library. That command should output the
>> appropriate lines, although just check that the generated line for LoadFile
>> directive actually points at a valid path. Seen one report where for
>> Anaconda Python the path it generated was wrong and it had to be changed.
>>
>> Graham
>>
>>> On 5 May 2017, at 2:54 AM, Brian Lehman <the.lehm...@ <>gmail.com
>>> <http://gmail.com/>> wrote:
>>>
>>> Good day. When I try to pip install mod_wsgi inside of an anaconda env
>>> called test1.0 on an aws ec2 instance w/ ubuntu, I get the folowing error.
>>> Any suggestions?
>>>
>>> (test1.0) ubuntu$ python --version
>>>
>>> Python 3.6.1 :: Continuum Analytics, Inc.
>>>
>>> (test1.0) ubuntu$
>>>
>>> (test1.0) ubuntu$
>>>
>>> (test1.0) ubuntu$ pip install mod_wsgi
>>>
>>> Collecting mod_wsgi
>>>
>>> Using cached mod_wsgi-4.5.15.tar.gz
>>>
>>> Complete output from command python setup.py egg_info:
>>>
>>> Traceback (most recent call last):
>>>
>>> File "<string>", line 1, in <module>
>>>
>>> File "/tmp/pip-build-80walwu3/mod-wsgi/setup.py", line 164, in
>>> <module>
>>>
>>> 'missing Apache httpd server packages.' % APXS)
>>>
>>> RuntimeError: The 'apxs' command appears not to be installed or is not
>>> executable. Please check the list of prerequisites in the documentation for
>>> this package and install any missing Apache httpd server packages.
>>>
>>>
>>> ----------------------------------------
>>>
>>> Command "python setup.py egg_info" failed with error code 1 in
>>> /tmp/pip-build-80walwu3/mod-wsgi/
>>>
>>>
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