Python Web Scraping Cookbook

How it works

The following is the code of this WebsiteScreenshotGenerator:

class WebsiteScreenshotGenerator:    def __init__(self, apikey):        self._screenshot = None        self._apikey = apikey    def capture(self, url, width, height, crop=True):        key = self.beginCapture(url, "{0}x{1}".format(width, height), "true", "firefox", "true")        print("The image key is: " + key)        timeout = 30        tCounter = 0        tCountIncr = 3        while True:            result = self.tryRetrieve(key)            if result["success"]:                print("Saving screenshot to: downloaded_screenshot.png" + key)                bytes=result["bytes"]                self._screenshot = Image.open(io.BytesIO(bytes))                if crop:                    # crop the image                    self._screenshot = self._screenshot.crop((0, 0, width, height))                    print("Cropped the image to: {0} {1}".format(width, height))