The URL is defined as a constant const.ApodEclipseImage() in the const module:
def ApodEclipseImage(): return "https://apod.nasa.gov/apod/image/1709/BT5643s.jpg"
The constructor of the URLUtility class has the following implementation:
def __init__(self, url, readNow=True): """ Construct the object, parse the URL, and download now if specified""" self._url = url self._response = None self._parsed = urlparse(url) if readNow: self.read()
The constructor stores the URL, parses it, and downloads the file with the read() method. The following is the code of the read() method:
def read(self): self._response = urllib.request.urlopen(self._url) self._data = self._response.read()
This function uses urlopen to get a response object, ...
