We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Tell module errors when you don't give it enough arguments
```
<Flyte> .tell
<Lurk> AttributeError: 'NoneType' object has no attribute 'split' (file "/home/flyte/workspace/willie/ve/local/lib/python2.7/site-packages/willie/modules/tell.py", line 93, in f_remind)
<Flyte> .tell Flyte
<Lurk> ValueError: need more than 1 value to unpack (file "/home/flyte/workspace/willie/ve/local/lib/python2.7/site-packages/willie/modules/tell.py", line 93, in f_remind)
```


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `willie/modules/tell.py`
Content:
```
1 """
2 tell.py - Willie Tell and Ask Module
3 Copyright 2008, Sean B. Palmer, inamidst.com
4 Licensed under the Eiffel Forum License 2.
5 
6 http://willie.dftba.net
7 """
8 
9 import os
10 import time
11 import datetime
12 import pytz
13 import threading
14 from willie.tools import Nick
15 from willie.module import commands, nickname_commands, rule, priority, example
16 
17 maximum = 4
18 
19 
20 def loadReminders(fn, lock):
21     lock.acquire()
22     try:
23         result = {}
24         f = open(fn)
25         for line in f:
26             line = line.strip()
27             if line:
28                 try:
29                     tellee, teller, verb, timenow, msg = line.split('\t', 4)
30                 except ValueError:
31                     continue  # @@ hmm
32                 result.setdefault(tellee, []).append((teller, verb, timenow, msg))
33         f.close()
34     finally:
35         lock.release()
36     return result
37 
38 
39 def dumpReminders(fn, data, lock):
40     lock.acquire()
41     try:
42         f = open(fn, 'w')
43         for tellee in data.iterkeys():
44             for remindon in data[tellee]:
45                 line = '\t'.join((tellee,) + remindon)
46                 try:
47                     f.write((line + '\n').encode('utf-8'))
48                 except IOError:
49                     break
50         try:
51             f.close()
52         except IOError:
53             pass
54     finally:
55         lock.release()
56     return True
57 
58 
59 def setup(self):
60     fn = self.nick + '-' + self.config.host + '.tell.db'
61     self.tell_filename = os.path.join(self.config.dotdir, fn)
62     if not os.path.exists(self.tell_filename):
63         try:
64             f = open(self.tell_filename, 'w')
65         except OSError:
66             pass
67         else:
68             f.write('')
69             f.close()
70     self.memory['tell_lock'] = threading.Lock()
71     self.memory['reminders'] = loadReminders(self.tell_filename, self.memory['tell_lock'])
72 
73 
74 def get_user_time(bot, nick):
75     tz = 'UTC'
76     tformat = None
77     if bot.db and nick in bot.db.preferences:
78             tz = bot.db.preferences.get(nick, 'tz') or 'UTC'
79             tformat = bot.db.preferences.get(nick, 'time_format')
80     if tz not in pytz.all_timezones_set:
81         tz = 'UTC'
82     return (pytz.timezone(tz.strip()), tformat or '%Y-%m-%d %H:%M:%S %Z')
83 
84 
85 @commands('tell', 'ask')
86 @nickname_commands('tell', 'ask')
87 @example('Willie, tell Embolalia he broke something again.')
88 def f_remind(bot, trigger):
89     """Give someone a message the next time they're seen"""
90     teller = trigger.nick
91 
92     verb = trigger.group(1)
93     tellee, msg = trigger.group(2).split(None, 1)
94 
95     tellee = Nick(tellee.rstrip('.,:;'))
96 
97     if not os.path.exists(bot.tell_filename):
98         return
99 
100     if len(tellee) > 20:
101         return bot.reply('That nickname is too long.')
102     if tellee == bot.nick:
103         return bot.reply("I'm here now, you can tell me whatever you want!")
104 
105     tz, tformat = get_user_time(bot, tellee)
106     timenow = datetime.datetime.now(tz).strftime(tformat)
107     if not tellee in (Nick(teller), bot.nick, 'me'):
108         bot.memory['tell_lock'].acquire()
109         try:
110             if not tellee in bot.memory['reminders']:
111                 bot.memory['reminders'][tellee] = [(teller, verb, timenow, msg)]
112             else:
113                 bot.memory['reminders'][tellee].append((teller, verb, timenow, msg))
114         finally:
115             bot.memory['tell_lock'].release()
116 
117         response = "I'll pass that on when %s is around." % tellee
118 
119         bot.reply(response)
120     elif Nick(teller) == tellee:
121         bot.say('You can %s yourself that.' % verb)
122     else:
123         bot.say("Hey, I'm not as stupid as Monty you know!")
124 
125     dumpReminders(bot.tell_filename, bot.memory['reminders'], bot.memory['tell_lock'])  # @@ tell
126 
127 
128 def getReminders(bot, channel, key, tellee):
129     lines = []
130     template = "%s: %s <%s> %s %s %s"
131     today = time.strftime('%d %b', time.gmtime())
132 
133     bot.memory['tell_lock'].acquire()
134     try:
135         for (teller, verb, datetime, msg) in bot.memory['reminders'][key]:
136             if datetime.startswith(today):
137                 datetime = datetime[len(today) + 1:]
138             lines.append(template % (tellee, datetime, teller, verb, tellee, msg))
139 
140         try:
141             del bot.memory['reminders'][key]
142         except KeyError:
143             bot.msg(channel, 'Er...')
144     finally:
145         bot.memory['tell_lock'].release()
146     return lines
147 
148 
149 @rule('(.*)')
150 @priority('low')
151 def message(bot, trigger):
152 
153     tellee = trigger.nick
154     channel = trigger.sender
155 
156     if not os.path.exists(bot.tell_filename):
157         return
158 
159     reminders = []
160     remkeys = list(reversed(sorted(bot.memory['reminders'].keys())))
161 
162     for remkey in remkeys:
163         if not remkey.endswith('*') or remkey.endswith(':'):
164             if tellee == remkey:
165                 reminders.extend(getReminders(bot, channel, remkey, tellee))
166         elif tellee.startswith(remkey.rstrip('*:')):
167             reminders.extend(getReminders(bot, channel, remkey, tellee))
168 
169     for line in reminders[:maximum]:
170         bot.say(line)
171 
172     if reminders[maximum:]:
173         bot.say('Further messages sent privately')
174         for line in reminders[maximum:]:
175             bot.msg(tellee, line)
176 
177     if len(bot.memory['reminders'].keys()) != remkeys:
178         dumpReminders(bot.tell_filename, bot.memory['reminders'], bot.memory['tell_lock'])  # @@ tell
179
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/willie/modules/tell.py b/willie/modules/tell.py
--- a/willie/modules/tell.py
+++ b/willie/modules/tell.py
@@ -88,11 +88,20 @@
 def f_remind(bot, trigger):
     """Give someone a message the next time they're seen"""
     teller = trigger.nick
-
     verb = trigger.group(1)
-    tellee, msg = trigger.group(2).split(None, 1)
 
-    tellee = Nick(tellee.rstrip('.,:;'))
+    if not trigger.group(3):
+        bot.reply("%s whom?" % verb)
+        return
+
+    tellee = trigger.group(3).rstrip('.,:;')
+    msg = trigger.group(2).lstrip(tellee).lstrip()
+
+    if not msg:
+        bot.reply("%s %s what?" % (verb, tellee))
+        return
+
+    tellee = Nick(tellee)
 
     if not os.path.exists(bot.tell_filename):
         return

{"golden_diff": "diff --git a/willie/modules/tell.py b/willie/modules/tell.py\n--- a/willie/modules/tell.py\n+++ b/willie/modules/tell.py\n@@ -88,11 +88,20 @@\n def f_remind(bot, trigger):\n     \"\"\"Give someone a message the next time they're seen\"\"\"\n     teller = trigger.nick\n-\n     verb = trigger.group(1)\n-    tellee, msg = trigger.group(2).split(None, 1)\n \n-    tellee = Nick(tellee.rstrip('.,:;'))\n+    if not trigger.group(3):\n+        bot.reply(\"%s whom?\" % verb)\n+        return\n+\n+    tellee = trigger.group(3).rstrip('.,:;')\n+    msg = trigger.group(2).lstrip(tellee).lstrip()\n+\n+    if not msg:\n+        bot.reply(\"%s %s what?\" % (verb, tellee))\n+        return\n+\n+    tellee = Nick(tellee)\n \n     if not os.path.exists(bot.tell_filename):\n         return\n", "issue": "Tell module errors when you don't give it enough arguments\n```\n<Flyte> .tell\n<Lurk> AttributeError: 'NoneType' object has no attribute 'split' (file \"/home/flyte/workspace/willie/ve/local/lib/python2.7/site-packages/willie/modules/tell.py\", line 93, in f_remind)\n<Flyte> .tell Flyte\n<Lurk> ValueError: need more than 1 value to unpack (file \"/home/flyte/workspace/willie/ve/local/lib/python2.7/site-packages/willie/modules/tell.py\", line 93, in f_remind)\n```\n\n", "before_files": [{"content": "\"\"\"\ntell.py - Willie Tell and Ask Module\nCopyright 2008, Sean B. Palmer, inamidst.com\nLicensed under the Eiffel Forum License 2.\n\nhttp://willie.dftba.net\n\"\"\"\n\nimport os\nimport time\nimport datetime\nimport pytz\nimport threading\nfrom willie.tools import Nick\nfrom willie.module import commands, nickname_commands, rule, priority, example\n\nmaximum = 4\n\n\ndef loadReminders(fn, lock):\n    lock.acquire()\n    try:\n        result = {}\n        f = open(fn)\n        for line in f:\n            line = line.strip()\n            if line:\n                try:\n                    tellee, teller, verb, timenow, msg = line.split('\\t', 4)\n                except ValueError:\n                    continue  # @@ hmm\n                result.setdefault(tellee, []).append((teller, verb, timenow, msg))\n        f.close()\n    finally:\n        lock.release()\n    return result\n\n\ndef dumpReminders(fn, data, lock):\n    lock.acquire()\n    try:\n        f = open(fn, 'w')\n        for tellee in data.iterkeys():\n            for remindon in data[tellee]:\n                line = '\\t'.join((tellee,) + remindon)\n                try:\n                    f.write((line + '\\n').encode('utf-8'))\n                except IOError:\n                    break\n        try:\n            f.close()\n        except IOError:\n            pass\n    finally:\n        lock.release()\n    return True\n\n\ndef setup(self):\n    fn = self.nick + '-' + self.config.host + '.tell.db'\n    self.tell_filename = os.path.join(self.config.dotdir, fn)\n    if not os.path.exists(self.tell_filename):\n        try:\n            f = open(self.tell_filename, 'w')\n        except OSError:\n            pass\n        else:\n            f.write('')\n            f.close()\n    self.memory['tell_lock'] = threading.Lock()\n    self.memory['reminders'] = loadReminders(self.tell_filename, self.memory['tell_lock'])\n\n\ndef get_user_time(bot, nick):\n    tz = 'UTC'\n    tformat = None\n    if bot.db and nick in bot.db.preferences:\n            tz = bot.db.preferences.get(nick, 'tz') or 'UTC'\n            tformat = bot.db.preferences.get(nick, 'time_format')\n    if tz not in pytz.all_timezones_set:\n        tz = 'UTC'\n    return (pytz.timezone(tz.strip()), tformat or '%Y-%m-%d %H:%M:%S %Z')\n\n\n@commands('tell', 'ask')\n@nickname_commands('tell', 'ask')\n@example('Willie, tell Embolalia he broke something again.')\ndef f_remind(bot, trigger):\n    \"\"\"Give someone a message the next time they're seen\"\"\"\n    teller = trigger.nick\n\n    verb = trigger.group(1)\n    tellee, msg = trigger.group(2).split(None, 1)\n\n    tellee = Nick(tellee.rstrip('.,:;'))\n\n    if not os.path.exists(bot.tell_filename):\n        return\n\n    if len(tellee) > 20:\n        return bot.reply('That nickname is too long.')\n    if tellee == bot.nick:\n        return bot.reply(\"I'm here now, you can tell me whatever you want!\")\n\n    tz, tformat = get_user_time(bot, tellee)\n    timenow = datetime.datetime.now(tz).strftime(tformat)\n    if not tellee in (Nick(teller), bot.nick, 'me'):\n        bot.memory['tell_lock'].acquire()\n        try:\n            if not tellee in bot.memory['reminders']:\n                bot.memory['reminders'][tellee] = [(teller, verb, timenow, msg)]\n            else:\n                bot.memory['reminders'][tellee].append((teller, verb, timenow, msg))\n        finally:\n            bot.memory['tell_lock'].release()\n\n        response = \"I'll pass that on when %s is around.\" % tellee\n\n        bot.reply(response)\n    elif Nick(teller) == tellee:\n        bot.say('You can %s yourself that.' % verb)\n    else:\n        bot.say(\"Hey, I'm not as stupid as Monty you know!\")\n\n    dumpReminders(bot.tell_filename, bot.memory['reminders'], bot.memory['tell_lock'])  # @@ tell\n\n\ndef getReminders(bot, channel, key, tellee):\n    lines = []\n    template = \"%s: %s <%s> %s %s %s\"\n    today = time.strftime('%d %b', time.gmtime())\n\n    bot.memory['tell_lock'].acquire()\n    try:\n        for (teller, verb, datetime, msg) in bot.memory['reminders'][key]:\n            if datetime.startswith(today):\n                datetime = datetime[len(today) + 1:]\n            lines.append(template % (tellee, datetime, teller, verb, tellee, msg))\n\n        try:\n            del bot.memory['reminders'][key]\n        except KeyError:\n            bot.msg(channel, 'Er...')\n    finally:\n        bot.memory['tell_lock'].release()\n    return lines\n\n\n@rule('(.*)')\n@priority('low')\ndef message(bot, trigger):\n\n    tellee = trigger.nick\n    channel = trigger.sender\n\n    if not os.path.exists(bot.tell_filename):\n        return\n\n    reminders = []\n    remkeys = list(reversed(sorted(bot.memory['reminders'].keys())))\n\n    for remkey in remkeys:\n        if not remkey.endswith('*') or remkey.endswith(':'):\n            if tellee == remkey:\n                reminders.extend(getReminders(bot, channel, remkey, tellee))\n        elif tellee.startswith(remkey.rstrip('*:')):\n            reminders.extend(getReminders(bot, channel, remkey, tellee))\n\n    for line in reminders[:maximum]:\n        bot.say(line)\n\n    if reminders[maximum:]:\n        bot.say('Further messages sent privately')\n        for line in reminders[maximum:]:\n            bot.msg(tellee, line)\n\n    if len(bot.memory['reminders'].keys()) != remkeys:\n        dumpReminders(bot.tell_filename, bot.memory['reminders'], bot.memory['tell_lock'])  # @@ tell\n", "path": "willie/modules/tell.py"}], "after_files": [{"content": "\"\"\"\ntell.py - Willie Tell and Ask Module\nCopyright 2008, Sean B. Palmer, inamidst.com\nLicensed under the Eiffel Forum License 2.\n\nhttp://willie.dftba.net\n\"\"\"\n\nimport os\nimport time\nimport datetime\nimport pytz\nimport threading\nfrom willie.tools import Nick\nfrom willie.module import commands, nickname_commands, rule, priority, example\n\nmaximum = 4\n\n\ndef loadReminders(fn, lock):\n    lock.acquire()\n    try:\n        result = {}\n        f = open(fn)\n        for line in f:\n            line = line.strip()\n            if line:\n                try:\n                    tellee, teller, verb, timenow, msg = line.split('\\t', 4)\n                except ValueError:\n                    continue  # @@ hmm\n                result.setdefault(tellee, []).append((teller, verb, timenow, msg))\n        f.close()\n    finally:\n        lock.release()\n    return result\n\n\ndef dumpReminders(fn, data, lock):\n    lock.acquire()\n    try:\n        f = open(fn, 'w')\n        for tellee in data.iterkeys():\n            for remindon in data[tellee]:\n                line = '\\t'.join((tellee,) + remindon)\n                try:\n                    f.write((line + '\\n').encode('utf-8'))\n                except IOError:\n                    break\n        try:\n            f.close()\n        except IOError:\n            pass\n    finally:\n        lock.release()\n    return True\n\n\ndef setup(self):\n    fn = self.nick + '-' + self.config.host + '.tell.db'\n    self.tell_filename = os.path.join(self.config.dotdir, fn)\n    if not os.path.exists(self.tell_filename):\n        try:\n            f = open(self.tell_filename, 'w')\n        except OSError:\n            pass\n        else:\n            f.write('')\n            f.close()\n    self.memory['tell_lock'] = threading.Lock()\n    self.memory['reminders'] = loadReminders(self.tell_filename, self.memory['tell_lock'])\n\n\ndef get_user_time(bot, nick):\n    tz = 'UTC'\n    tformat = None\n    if bot.db and nick in bot.db.preferences:\n            tz = bot.db.preferences.get(nick, 'tz') or 'UTC'\n            tformat = bot.db.preferences.get(nick, 'time_format')\n    if tz not in pytz.all_timezones_set:\n        tz = 'UTC'\n    return (pytz.timezone(tz.strip()), tformat or '%Y-%m-%d %H:%M:%S %Z')\n\n\n@commands('tell', 'ask')\n@nickname_commands('tell', 'ask')\n@example('Willie, tell Embolalia he broke something again.')\ndef f_remind(bot, trigger):\n    \"\"\"Give someone a message the next time they're seen\"\"\"\n    teller = trigger.nick\n    verb = trigger.group(1)\n\n    if not trigger.group(3):\n        bot.reply(\"%s whom?\" % verb)\n        return\n\n    tellee = trigger.group(3).rstrip('.,:;')\n    msg = trigger.group(2).lstrip(tellee).lstrip()\n\n    if not msg:\n        bot.reply(\"%s %s what?\" % (verb, tellee))\n        return\n\n    tellee = Nick(tellee)\n\n    if not os.path.exists(bot.tell_filename):\n        return\n\n    if len(tellee) > 20:\n        return bot.reply('That nickname is too long.')\n    if tellee == bot.nick:\n        return bot.reply(\"I'm here now, you can tell me whatever you want!\")\n\n    tz, tformat = get_user_time(bot, tellee)\n    timenow = datetime.datetime.now(tz).strftime(tformat)\n    if not tellee in (Nick(teller), bot.nick, 'me'):\n        bot.memory['tell_lock'].acquire()\n        try:\n            if not tellee in bot.memory['reminders']:\n                bot.memory['reminders'][tellee] = [(teller, verb, timenow, msg)]\n            else:\n                bot.memory['reminders'][tellee].append((teller, verb, timenow, msg))\n        finally:\n            bot.memory['tell_lock'].release()\n\n        response = \"I'll pass that on when %s is around.\" % tellee\n\n        bot.reply(response)\n    elif Nick(teller) == tellee:\n        bot.say('You can %s yourself that.' % verb)\n    else:\n        bot.say(\"Hey, I'm not as stupid as Monty you know!\")\n\n    dumpReminders(bot.tell_filename, bot.memory['reminders'], bot.memory['tell_lock'])  # @@ tell\n\n\ndef getReminders(bot, channel, key, tellee):\n    lines = []\n    template = \"%s: %s <%s> %s %s %s\"\n    today = time.strftime('%d %b', time.gmtime())\n\n    bot.memory['tell_lock'].acquire()\n    try:\n        for (teller, verb, datetime, msg) in bot.memory['reminders'][key]:\n            if datetime.startswith(today):\n                datetime = datetime[len(today) + 1:]\n            lines.append(template % (tellee, datetime, teller, verb, tellee, msg))\n\n        try:\n            del bot.memory['reminders'][key]\n        except KeyError:\n            bot.msg(channel, 'Er...')\n    finally:\n        bot.memory['tell_lock'].release()\n    return lines\n\n\n@rule('(.*)')\n@priority('low')\ndef message(bot, trigger):\n\n    tellee = trigger.nick\n    channel = trigger.sender\n\n    if not os.path.exists(bot.tell_filename):\n        return\n\n    reminders = []\n    remkeys = list(reversed(sorted(bot.memory['reminders'].keys())))\n\n    for remkey in remkeys:\n        if not remkey.endswith('*') or remkey.endswith(':'):\n            if tellee == remkey:\n                reminders.extend(getReminders(bot, channel, remkey, tellee))\n        elif tellee.startswith(remkey.rstrip('*:')):\n            reminders.extend(getReminders(bot, channel, remkey, tellee))\n\n    for line in reminders[:maximum]:\n        bot.say(line)\n\n    if reminders[maximum:]:\n        bot.say('Further messages sent privately')\n        for line in reminders[maximum:]:\n            bot.msg(tellee, line)\n\n    if len(bot.memory['reminders'].keys()) != remkeys:\n        dumpReminders(bot.tell_filename, bot.memory['reminders'], bot.memory['tell_lock'])  # @@ tell\n", "path": "willie/modules/tell.py"}]}