Flask app on WebFaction

httpd.conf

# File /home/ludwig/webapps/flask/apache2/conf/httpd.conf
ServerRoot "/home/ludwig/webapps/flask/apache2"

LoadModule dir_module        modules/mod_dir.so
LoadModule env_module        modules/mod_env.so
LoadModule log_config_module modules/mod_log_config.so
LoadModule mime_module       modules/mod_mime.so
LoadModule rewrite_module    modules/mod_rewrite.so
LoadModule setenvif_module   modules/mod_setenvif.so
LoadModule wsgi_module       modules/mod_wsgi.so

LogFormat "%{X-Forwarded-For}i %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
CustomLog /home/ludwig/logs/user/access_flask.log combined
DirectoryIndex index.py
DocumentRoot /home/ludwig/webapps/flask/htdocs
ErrorLog /home/ludwig/logs/user/error_flask.log
KeepAlive Off
Listen 23908
MaxSpareThreads 3
MinSpareThreads 1
ServerLimit 1
SetEnvIf X-Forwarded-SSL on HTTPS=1
ThreadsPerChild 5

# XXX: changed 'python-path' in this line
WSGIDaemonProcess flask processes=5 python-path=/home/ludwig/webapps/flask/htdocs threads=1

WSGIProcessGroup flask
WSGIRestrictEmbedded On
WSGILazyInitialization On

# XXX: added these two lines
WSGIPythonPath /home/ludwig/webapps/flask/htdocs/
WSGIScriptAlias / /home/ludwig/webapps/flask/htdocs/index.py

<Directory /home/ludwig/webapps/flask/htdocs>
    AddHandler wsgi-script .py

    # XXX: Added these three lines
    RewriteEngine on
    RewriteBase /
    WSGIScriptReloading On

</Directory>

index.py

# File /home/ludwig/webapps/flask/htdocs/index.py
from myapp import app as application

myapp.py

#!/usr/bin/env python3.3
# File /home/ludwig/webapps/flask/htdocs/myapp.py
# See http://flask.pocoo.org/snippets/65/
from flask import Flask
app = Flask(__name__)

class WebFactionMiddleware(object):
    def __init__(self, app):
        self.app = app
    def __call__(self, environ, start_response):
        environ['SCRIPT_NAME'] = '/flask'
        return self.app(environ, start_response)

app.wsgi_app = WebFactionMiddleware(app.wsgi_app)


@app.route("/")
def hello():
    return "Hello World from Flask!"

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

shell-commands.txt

# make sure python3.3 can find Flask module
[ludwig@web178 ~]$ easy_install-3.3 pip
[ludwig@web178 ~]$ pip3.3 install flask

# after changing httpd.conf
[ludwig@web178 ~]$ ~/webapps/flask/apache2/bin/restart