commit f852b436925c821ddbaab46f226f6528dcd08149
Author: Klaus-Uwe Mitterer <git@klaus-uwe.me>
Date:   Tue Mar 17 20:28:42 2015 +0100

    Finally check in @TheHelloBot

diff --git a/hello.py b/hello.py
new file mode 100644
index 0000000..9acfc02
--- /dev/null
+++ b/hello.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import os, tweepy, calendar, datetime, itertools, sys, time, random
+
+max_length = 14
+cke = "Consumer Key"
+cse = "Consumer Secret"
+ato = "Access Token"
+ase = "Access Secret"
+
+allowedchars = "1234567890abcdefghijklmnopqrstuvwxyz_"
+
+tmpfile = "tmp"
+bot_path = os.path.dirname(os.path.abspath(__file__))
+id_file = os.path.join(bot_path, tmpfile)
+
+auth = tweepy.OAuthHandler(cke, cse)
+auth.set_access_token(ato, ase)
+api = tweepy.API(auth)
+
+chars = list(allowedchars)
+
+try:
+ with open(id_file, "r") as file:
+  current = list(file.read())
+  if current[-1] == '\n':
+   del current[-1]
+except IOError:
+ print "No savepoint found. Starting from the top."
+ current = []
+
+def tweet(word):
+ greeting = random.randint(1,3)
+ if greeting == 1:
+  text = "Hi there, @%s, how are you?" % word
+ elif greeting == 2:
+  text = "Hello @%s! Have a nice day!" % word
+ else:
+  text = "How are you doing, @%s?" % word
+ try:
+  api.update_status(text.encode('utf-8'))
+  print text
+ except tweepy.error.TweepError, e:
+   print "Tweet failed: " + word
+   print e
+
+def nexttweet(offset = 1):
+ global current
+ if offset > len(current):
+  current = [chars[0]] + current
+ elif current[-offset] == chars[-1]:
+  current[-offset] = chars[0]
+  nexttweet(offset + 1)
+ else:
+  current[-offset] = chars[chars.index(current[-offset]) + 1]
+
+while len(current) <= max_length:
+ nexttweet()
+ try:
+  api.get_user("".join(current))
+  tweet("".join(current))
+  with open(id_file, "w") as file:
+   file.write("".join(current))
+  time.sleep(60)
+ except tweepy.error.TweepError, e:
+  print "User does not exist: " + "".join(current)