Jinja2is a powerful and easy to use python-based templating engine that comes in handy in an IT environment with multiple servers where configurations vary every other time. Creating static configuration files for each of these nodes is tedious and may not be a viable option since it will consu...
Django'sJinja2template backend adds{{csrf_input}}to the context of all templates which is equivalent to{%csrf_token%}in the Django template language. For example: {{csrf_input}} Using the decorator method¶ Rather than addingCsrfViewMiddlewareas a blanket protection, you can use thecsrf_prot...
You can use variables in the “when” statement to define conditional expressions that depend on the values of variables. - debug: msg: the foo variable does not equal the bar string when: foo != 'bar' In this case, the condition is foo != ‘bar’, which is a Jinja2 expression that...
Back to the original script. Rewrite it (version 3) to useatinstead of justdatefor scheduling the data file download: #!/bin/bash# Simple script that shows how to work with dates and times, and Unix 'at'# Jose Vicente Nunez Zuleta#test-x/usr/bin/date||exit100test-x/usr/bin/at||...
You use the cursor’sexecute()method to delete thebookstable if it already exists. This avoids the possibility of another table namedbooksexisting, which might result in confusing behavior (for example, if it has different columns). This isn’t the case here, because you haven’t created...
WTForms is a Python library that provides flexible web form rendering. You can use it to render text fields, text areas, password fields, radio buttons, and …
2.In the “Create – Server” dialog, enter a name for your server and go to the “Connection” tab and enterlocalhostas the host, and the username (postgres) and password you set earlier. 3.Click “Save” to register the server. If everything is set up correctly, you should be able...
It is highly recommended to create a virtual environment before you continue. Activate your virtual environment and run the following command to install FastAPI. pip install fastapi Installing Uvicorn In order to run FastAPI, you need to have an ASGI server. I am going to use Uvicorn since it...
when: result.failed == "false" # checking if failed is set to false when: changed == "true" # Checking if the status of changed is true 'When' Conditional Statements With Loops You can combine the conditional statement withloops. In this case, for every item in the loop conditional sta...
31) Go to your browser and type in 127.0.0.1:8072 (this will run in 'Gevent' mode and allow you to use the live chat functionality) 32) Go back to terminal and type ifconfig to find your ubuntu install's IP address on the local network ...