docs: def rrandom():
      """Get the next random number in the range [0.0, 1.0].
      Returns a float."""
      import urllib.request
      import urllib.error
      import urllib.parse
      if checkquota() < 1:
          raise Exception("Your www.random.org quota has already run out.")
      request = urllib.request.Request(
          'http://www.random.org/integers/?num=1&min=0&max=1000000000&col=1&base=10&format=plain&rnd=new')
      request.add_header('User-Agent', 'randomwrapy/0.1 very alpha')
      opener = urllib.request.build_opener()
      numlist = opener.open(request).read()
      num = numlist.split()[0]
      return float(num) / 1000000000