add rand_letters()

modules/rand.py

@@ -4,6 +4,7 @@ Pick some random numbers.
 """
 import sys
 import random
+import string
 
 from module import commands, example
 
@@ -36,3 +37,22 @@ def rand(bot, trigger):
 
 	number = random.randint(low, high)
 	bot.reply(f"random({low}, {high}) = {number}")
+
+
+@commands('letters')
+@example('.letters', 'iloynlle')
+@example('.letters 16', 'oaotordbwaauouxk')
+def rand_letters(bot, trigger):
+	"""
+	usage: .letters [num_letters] [num_vowels]
+
+	Generates a series of string of random letters.
+	"""
+	num_letters = int(trigger.group(3)) if trigger.group(3) else 8
+	num_vowels = int(trigger.group(4)) if trigger.group(4) else 2
+
+	msg = []
+	for _ in range(num_letters):
+		c = random.choice(string.ascii_lowercase + "aioue" * num_vowels)
+		msg.append(c)
+	bot.msg(''.join(msg))