Moved loremipsum import logic out of main shreddit code

shreddit/shredder.py

@@ -6,27 +6,10 @@ import json
 import yaml
 import praw
 from re import sub
-from random import shuffle, randint
 from datetime import datetime, timedelta
 from praw.errors import (InvalidUser, InvalidUserPass, RateLimitExceeded, HTTPException, OAuthAppRequired)
 from praw.objects import Comment, Submission
-try:
-    from loremipsum import get_sentence  # This only works on Python 2
-except ImportError:
-    def get_sentence():
-        return "I have been Shreddited for privacy!"
-
-    os_wordlist = "/usr/share/dict/words"
-    if os.name == "posix" and os.path.isfile(os_wordlist):
-        # Generate a random string of words from our system's dictionary
-        fh = open(os_wordlist)
-        words = fh.read().splitlines()
-        fh.close()
-        shuffle(words)
-
-        def get_sentence():
-            return " ".join(words[:randint(50, 150)])
-assert get_sentence
+from shreddit.util import get_sentence
 
 
 def shred(config, praw_ini=None):

shreddit/util.py

@@ -0,0 +1,24 @@
+"""This module contains common utilities for the rest of the package.
+"""
+import random
+
+
+WORDLIST = "/usr/share/dict/words"
+STATIC_TEXT = "I have been Shreddited for privacy!"
+
+
+try:
+    from loremipsum import get_sentence
+except ImportError:
+    def get_sentence():
+        """This keeps the mess of dealing with the loremipsum library out of the shredding code. Until the maintainer of
+        the loremipsum package uploads a version that works with Python 3 to pypi, it is necessary to provide a drop-in
+        replacement. The current solution is to return a static text string unless the operating system has a word list.
+        If that is the case, use it instead.
+        """
+        try:
+            lines = [line.strip() for line in open(WORDLIST).readlines()]
+            return " ".join(random.sample(lines, random.randint(50, 150)))
+        except IOError:
+            # The word list wasn't available...
+            return STATIC_TEXT