docs: def __getDataFromURL(url):
          """Read HTML data from an user GitHub profile.
  
          :param url: URL of the webpage to download.
          :type url: str.
          :return: webpage donwloaded.
          :rtype: str.
          """
          code = 0
  
          while code != 200:
              req = Request(url)
              try:
                  response = urlopen(req)
                  code = response.code
                  sleep(0.01)
              except HTTPError as error:
                  code = error.code
                  if code == 404:
                      break
              except URLError as error:
                  sleep(3)
  
          if code == 404:
              raise Exception("User was not found")
          return response.read().decode('utf-8')