PyWebView 2.0.3 simple understanding

Learn about pywebview, a very convenient front-end and back-end interactive technology.

Recently, Pywebview released a new version of 2.0. Pywebview allows you to create GUI applications using a combination of web technology and Python. Allows you to use Python for application logic control, and use Javascript and CSS to generate GUI. Pywebview has good support for freeze to implement the executable packaging of the program.
The biggest change in Pywebview2.0 is the two-way communication between Python and Javascript, which completely eliminates the need for a Python web server.

import webview
from threading import Thread

class Api():
    def helloWorld(self,param):
        # Executable business logic
        return 'return result'

def load_html():
    webview.load_html("""
        <style>
            #hdl_id{
                height:25%;
                width:100%;
                font-size: 30px;
                background-color:skyblue;
            }
        </style>
                 <!-- You can also import css files -->
        <!-- <link rel="stylesheet" type="text/css" href="test.css"/> -->

        <table style="border:1px solid #cccaca;background:red;">
            <tr>
                <td>11</td>
                <td>12</td>
            </tr>
            <tr>
                <td>21</td>
                <td>22</td>
            </tr>
        </table> 
        <div id="hdl_id" onclick="hdl_function_test()">enene</div> 

        <script>
            function hdl_function_test(){
                alert('be clicked!')
            } 
        </script>
                 <!-- You can also import js files -->
        <!-- <script type="text/javascript" src="test.js"></script> -->
    """)
    # Added load_css function to load custom CSS
    # TypeError: evaluate_js() takes exactly 2 arguments (1 given) when used as follows 
    # webview.load_css(stylesheet="""
    #     #hdl_id{
    #         height:25%;
    #         width:100%;
    #         font-size: 30px;
    #         background-color:skyblue;
    #     }
    # """,uid="master")

    #Create window  
    second_window = webview.create_window('second  window')
    #Specify WebView and add content
    webview.load_html("""
        <span>this is a test</span><br>
        <div style="background-color:grey;">gegegeg</div>
        <input type="button" id="test" value="click it" onclick="test()">
    """,uid=second_window)
    #Callback background business logic
    webview.evaluate_js(script="""
        pywebview.api.helloWorld().then(function(response){
            alert(response)
        })
    """)

if __name__ == '__main__':
    api = Api()
    t = Thread(target=load_html)
    t.start()
    test = webview.create_window('first  window', js_api=api)

pywebview 2.0 released
http://www.myegotraps.com/pywebview-2-0-released/
documentation
https://github.com/r0x0r/pywebview

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