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POWhy does globalising a boolean not work but globalising a dictionary does
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copied!<p>This is just a question wondering why this doesn't work. I have figured out a better way, but I don't know why previously it wasn't working.</p> <pre><code>global mydict mydict = {} </code></pre> <p>This seems to work fine, and has made the mydict dictionary global. I even print mydict and it works. However, doing this:</p> <pre><code>global bool bool = False </code></pre> <p>Does not seem to work. If trying to print bool in my code, I get:</p> <pre><code>UnboundLocalError: local variable 'bool' referenced before assignment </code></pre> <p>So why does it work for the dictionary and not the boolean?</p> <p>Oh, also, if anyone was wondering how I figured out a better way, I initialised a class and made bool global in the class by doing: self.bool = False which worked. I got it from this question: <a href="https://stackoverflow.com/questions/10775411/making-all-variables-global">Making all variables global</a></p> <hr> <p>EDIT: As requested, I'll post the necessary code:</p> <pre><code>import chatbot global mydict mydict = {} global haveamessage haveamessage = False class MyBot(chatbot.ChatBot): def __init__(self, username, password, site): chatbot.ChatBot.__init__(self,username,password,site) def on_message(self, c, e): print mydict print haveamessage if __name__ == '__main__': bot = MyBot("MyUsername", "MyPassword", "MySite") bot.start() </code></pre> <p>I'll try explain this code. Pretty much the chatbot module is to allow users to create bots in wikis on Wikia, a company that allows wikis to be created which anyone can edit. On a wiki there is a chat extension where users can talk to. This script allows a bot to join the chat and do commands. on_message() goes off when someone posts something in the Chat.</p> <p>So this prints:</p> <pre><code>{} Traceback (most recent call last): File "file.py", line 146, in <module> bot.start() File "/Library/Python/2.7/site-packages/chatbot.py", line 371, in start self.on_message(self.c, e) File "file.py", line 12, in on_message print haveamessage UnboundLocalError: local variable 'haveamessage' referenced before assignment </code></pre> <hr> <p>I'd like to clarify that the reason this isn't producing an error for all of you is because you are not in a Wikia chat. the function on_message() only runs when someone posts something in the Chat. For example, I may have:</p> <pre><code>def on_message(self, c, e): if e.text == 'hello': # e.text is what a user posts in the chat. e = event c.send('Hello!') # c.send simply sends back a message in the chat. c = connection </code></pre> <p>So when someone posts in chat hello, the Bot posts back Hello!</p>

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