RE: Strange error in Python code

Hi,
I am very confused.  I thought the vars were getting initialized in the
__init__(self, now = time.time(), clicks = 1): part.  That's why I had
pass in that method.  However, your suggestion fixed the problem I was
having.  I had to move both variables though.  So now it reads:
    def __init__(self):
        self.clicks = 0
        self.now = time.time()
The thing that confuses me is I have written code with variables
declared in the () before and they worked.  Why would this time be
different?
Thanks
Storm



-- 
Thoughts of a Dragon:
http://www.stormdragon.us/
What color dragon are you?
http://quizfarm.com/quizzes/new/alustriel07/what-color-dragon-would-you-be/



On Sun, 2009-12-13 at 12:30 -0500, Ken Perry wrote:
>  
> 
>  
> 
> You need to put self.clicks =0 in the __init__ function because you’re
> trying to do this
> 
>  
> 
> None+=1
> 
>  
> 
> You have to initialize it first 
> 
>  
> 
>  
> 
>  If you were just setting it like
> 
>  
> 
> Self.clicks=0 
> 
>  
> 
> Then you could do it in the function but that would not be what you
> want.  So initialize it and your done.
> 
>  
> 
> Note you don’t need __init__ if you are just doing pass
> 
>  
> 
>  
> 
>  
> 
> 
> From: programmingblind-bounce@xxxxxxxxxxxxx
> [mailto:programmingblind-bounce@xxxxxxxxxxxxx] On Behalf Of Storm
> Dragon
> Sent: Sunday, December 13, 2009 11:26 AM
> To: programmingblind@xxxxxxxxxxxxx
> Subject: Re: Strange error in Python code
> 
> 
> 
>  
> 
> Hi,
> Lol it seems so obvious now. Forgetting to put self.variable can be
> detrimental.
> I got all of that fixed and am still getting an error about no
> attribute called now, but it is there, I double checked.  Here's the
> revised code:
> import time
> class countPresses:
>     def __init__(self, now = time.time(), clicks = 1):
>         pass
> 
>     def clickCount(self):
>         if time.time() <= self.now + 0.75:
>             self.clicks += 1
>         self.now = time.time()
>         if self.clicks > 2: self.clicks = 1
>         return self.clicks
> 
> test = countPresses()
> print str(test.clickCount())
> print str(test.clickCount())
> 
>  
> 
> 
>  
> -- 
> Thoughts of a Dragon:
> http://www.stormdragon.us/
> What color dragon are you?
> http://quizfarm.com/quizzes/new/alustriel07/what-color-dragon-would-you-be/
> 
> On Sun, 2009-12-13 at 07:30 -0800, R Dinger wrote:
> 
> 
> 
>  
> 
> 
>         Your calls to clickCount do not have parens e.g. clickCount(),
>         which is required for a function call.  Also you have an
>         undefined local variable in click count named now, which is
>         used prior to having a value. 
>         
>           
>         
>         Richard 
>         
>         
>                 ----- Original Message ----- 
>                 
>                 From: Storm Dragon 
>                 
>                 To: programmingblind@xxxxxxxxxxxxx 
>                 
>                 Sent: Sunday, December 13, 2009 6:15 AM 
>                 
>                 Subject: Strange error in Python code 
>                 
>                  
>                 
>                 Hi,
>                 I may have gone about this the wrong way. I wanted a
>                 simple way to tell if a button has been pressed twice.
>                 My class gives a strange error though.  I wrote a
>                 quick bit of code to test it.  It just calls the
>                 method twice in succession so it should get 1 then 2
>                 for output.  Instead, it says:
>                 <bound method countPresses.clickCount of
>                 <__main__.countPresses instance at 0x7f0a97e78c68>
>                 Here's the code:
>                 import time
>                 class countPresses:
>                     def __init__(self, clicks = 1, now = time.time()):
>                         pass
>                 
>                     def clickCount(self):
>                         if now + 0.75 >= time.time():
>                             self.clicks += 1
>                         now = time.time()
>                         if self.clicks > 2: self.clicks = 1
>                         return self.clicks
>                 
>                 test = countPresses()
>                 print str(test.clickCount)
>                 print str(test.clickCount)
>                 
>                 Thanks
>                 Storm
>                 
>                  
>                 
>                 
>                  
>                 -- 
>                 Thoughts of a Dragon:
>                 http://www.stormdragon.us/
>                 What color dragon are you?
>                 
> http://quizfarm.com/quizzes/new/alustriel07/what-color-dragon-would-you-be/
>                 
>                 
>                 
>                 
>                 
>                  
>

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