import requests
import re

def random_words(n=50, wordlength=range(10, 15)):
   """Read a random english wiki article and extract some words.

   Arguments:
   n -- The number of words to return. Returns all found ones, if n is more than we were able to found.
   KeywordArguments:
   wordlength -- A range that forces the words to have a specific length.
   """
   valid_words = re.compile(r'[a-zA-Z]{{{},{}}}'.format(wordlength.start, wordlength.stop))
   found = list(set(valid_words.findall(requests.get('http://en.wikipedia.org/wiki/Special:Random').text)))
   try:
       return found[:n]
   except IndexError:
       return found

print(random_words(200, range(5, 6)))
print(random_words(77, range(16, 26))