RE: Strange error in Python code

 

 

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 <mailto:stormdragon2976@xxxxxxxxx>  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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