Created
September 6, 2021 10:36
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call python from js
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| const onLoadClick = () => { | |
| console.log('Load click') | |
| var xmlHttp = new XMLHttpRequest(); | |
| xmlHttp.open("GET", '/serve_load', false); // false for synchronous request | |
| xmlHttp.send(null); | |
| } |
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| import os | |
| import http.server | |
| from http.server import HTTPServer, SimpleHTTPRequestHandler | |
| from pyscript import save_pic | |
| class ImageRequestHandler(SimpleHTTPRequestHandler): | |
| def do_GET(self): | |
| if self.path == '/': | |
| self.path = '/webviewer.html' | |
| elif self.path == '/serve_load': | |
| save_pic() | |
| return http.server.SimpleHTTPRequestHandler.do_GET(self) | |
| server_object = HTTPServer(server_address=('', 8080), RequestHandlerClass=ImageRequestHandler) | |
| server_object.serve_forever() |
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| import requests | |
| import os | |
| class MyBusinessLogic: | |
| def __init__(self): | |
| self.urls = [ | |
| 'https://i.cbc.ca/1.5256404.1566499707!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_780/cat-behaviour.jpg', | |
| 'https://ichef.bbci.co.uk/news/976/cpsprodpb/12A9B/production/_111434467_gettyimages-1143489763.jpg', | |
| ] | |
| self.filename = 'cat_pic.jpg' | |
| self.idx = 0 | |
| self.pic_url = self.urls[0] | |
| def do_something(self): | |
| self.idx += 1 | |
| self.pic_url = self.urls[self.idx % len(self.urls)] | |
| try: | |
| os.remove(self.filename) | |
| except OSError as e: | |
| print('excep', e) | |
| with open(self.filename, 'wb') as handle: | |
| response = requests.get(self.pic_url, stream=True) | |
| if not response.ok: | |
| print(response) | |
| for block in response.iter_content(1024): | |
| if not block: | |
| break | |
| handle.write(block) | |
| logic = MyBusinessLogic() | |
| def save_pic(): | |
| logic.do_something() |
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| <!DOCTYPE html> | |
| <html> | |
| <script src="jsfile.js"></script> | |
| <head> | |
| Demo | |
| </head> | |
| <body> | |
| <div> | |
| Click to load an Image | |
| <div> | |
| <button onclick="onLoadClick()">Load Image</button> | |
| <div> | |
| <img id="my_image_id" src="cat_pic.jpg" /> | |
| </div> | |
| </body> | |
| </html> |
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python .\py_server.pyfrom the dir where py_server.py is