= UoL LAMP HowTo Install Python Flask Applications

Tags: [[HowTo]] [[Install]] [[Pain in the proverbial]] [[UoL LAMP Server]]


This page is for python 3, for python 2 see [[UoL LAMP HowTo Install Legacy Python Flask Applications]]

=== Create Environment

1. Add python 3 to your path by adding the following line to `.profile` file in your home directory:

{{{
PATH=$PATH:/opt/python3/bin/
}}}

  You will need to log off and log back in to add the above to your current environment.

2. Change directory into `/local/` and create a virtual environment:

{{{
cd /local/ && virtualenv --no-site-packages venv
}}}

3. Activate the virtual environment:

{{{
source /local/venv/bin/activate
}}}

4. Download your application from a repository such as [https://github.com/LCBRU GitHub].  Go to the application directory and install Flask and the other requirements by running the command:

{{{
pip install -r requirements.txt
}}}

=== Apache Setup

1. Edit the Apache config:

{{{
vi /local/apache2/etc/httpd.conf
}}}

2. Amend the values below the comment `# List of resources to look for when the client requests a directory` to be:

{{{
# List of resources to look for when the client requests a directory
DirectoryIndex index.html

WSGIDaemonProcess application user=wwwrun threads=5 python-path=/local/venv/lib/python3.5/site-packages home={{{path to application folder}}}
WSGIScriptAlias / {{{path to application}}}

}}}


3. Edit the Apache modules conf:

{{{
vi /local/apache2/etc/loadmodule.conf
}}}

4. Add the following line to the end of the file:

{{{
LoadModule      wsgi_module             /opt/python3/lib/mod_wsgi.so
}}}

5. Restart Apache using the command:

{{{
sudo /etc/init.d/uol.apache2 restart
}}}

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