notes.txt

In Python, a decorator is a design pattern that allows you to
 modify the functionality of a function by wrapping it in 
 another function. The outer function is called the decorator, 
which takes the original function as an argument and returns
 a modified version of it123. Decorators provide a simple 
 syntax for calling higher-order functions1.


 However, to understand decorators, it is enough to think 
 about functions as something that turns given
  arguments into a value.






  set Flask_App=app.py

###debug true
  set Flask_DEBUG=1

where is this file located
href=""





  What is the use of autopep8?
autopep8 automatically formats Python code to conform to the PEP 8 style guide. It uses the pycodestyle utility to determine what parts of the code needs to be formatted. autopep8 is capable of fixing most of the formatting issues that 
can be reported by pycodestyle.

###########################  this date is attribute
   <p> By {{post.author }} on {{post.date}}</p>

##                this posts is variable
    {% for post in posts %}   
and this argument is equal to our post dictionary dumy data
return render_template('home.html', posts=posts)    



Flask's url_for tag that is used here, creates the appropriate path to the file. Because it can accept variables as arguments, url_for allows you to programmatically control the generated path, if desired.



ecause you'll likely create many pages that extend the same template, it's helpful to create a code snippet in VS Code with which you can quickly initialize new page templates. A snippet helps you avoid tedious and error-prone copy-paste operations.

The following sections walk through different parts of this process



words::::
that can creep in when using copy-paste from existing code.