A framework that let's you compose websites in Python with ease!

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Overview

Perry

Perry <= A framework that let's you compose websites in Python with ease!

Perry works similar to Qt and Flutter, allowing you to create component collections. Say you want to create a div with some text and an image. To do that you'd first need to create the page:

from Perry import component, pageView, serve, Composite

Let's break it down:

  • Component - A given element that can be added anywhere on the page
  • pageView - Creates a page with a route for us, we can load styles, JS and other things into it by using the 'styles' argument
  • Serve - A Flask based micro-server for Perry
  • Composite - The most important part! This tells our components to build themselves recursively as well as creating the skeleton, route and debugging info.

Now let's create the page

Homepage = component(pageView, _Inherit = True)
# a pageView is also a component, but inherits different functionality

# Assign page contents
Homepage <= {
  'title': 'Home', # Title of the page 
  'path':'',       # Route on the webserver, no need to include the starting /
  'styles': [bootstrap], # Styles and other components, here we load bootstrap which is included in Extras
  'DOM': pageView.DOM,   # DOM, not yet implemented but worth using in case you want to upgrade to a newer verion of Perry later
  'components': HomepageContents # A ComponentSource with our elements
}

This page will just show up as an error as we haven't yet created our component source! This can be done through importing ComponentSource

HomepageContents = ComponentSource(
  DIV(
    Label('Hello World!', 'h1'),
    Card(
        Image('Image URL'),
        CardText('Sample Text which has attributes for bootstrap cards', 'p')   
    ),
    Label('Good bye!', 'h1')
  )
)

You'll get something like this. The trailing comment is used for debugging

Hello World!

Sample Text which has attributes for bootstrap cards

Good bye!

Running on Perry v0.9 with Debug Mode on!

">
<body>
     
   <div id="" class="">
      <h1 id=""> Hello World! h1>
       
      <div style="width: 18rem;" id="" class="card, ">
         <div class="card-body">
            <img src="Image URL" id="style=''">
             
            <p id="class='card-text'"> Sample Text which has attributes for bootstrap cards p>
             
         div>
      div>
       
      <h1 id=""> Good bye! h1>
       
   div>  <p id=""> Running on Perry v0.9 with Debug Mode on! p>   body>

Custom Element Bundles and Styling

Want to bundle together multiple elements and create a universal one? That's easy to do!

OurCoolNewElement = DIV(
    Label('Hello, I have custom stuff!', 'h1', id = 'CoolTitle'),
    cclass = 'NewElement'
)
# Let's give it some style
ourCustomStyle = style()
ourCustomStyle <= {
  'author':'HUSKI3',
  'source':'Local-made ;)'
  'ctype':'css',
  'css' : '''
  .NewElement {
    color: white;
    background: black;
  }
  '''}
# And now add it to the components
HomepageContents = ComponentSource(
  DIV(
    Label('Hello World!', 'h1'),
    OurCoolNewElement , # <--- here
    Label('Good bye!', 'h1')
  )
)

You'll need to load the style when defining the homepage contents!

Homepage <= {
  ...,
  'styles': [some, styles, ourCustomStyle],
  ...
}

Adding JS Support

At the moment JS doesn't have direct support through built in components, but you can use JQueryEngine and JQueryEngineStrapper from Extras.

# First we create the component with JQuery, give it a pageView to wrap around (WIP)
js = JQueryEngine(pageView, cid = 'coolscript')
# Now you load in the script, it can either be a string or a read from file
js <= ( open('PerryApp/coolscript.js','r').read() )
# To load it in, you need to add JQueryEngineStrapper to the styles of the page and add the js component to the components
HomepageContents.add( js )

Serving pages with Flask

In Perry you always serve pages as a Composite collection, this way they are built and then loaded on Flask on the specified routes.

# Serve our pages as a composite collection
serve <= Composite(Homepage, About, OtherPage, debug = True)
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