[Tutor] sys.platform in win XP 64 and vista 64?

[claxo]

Im correct in that sys.platform will return 'win32' even in 64bits XP-Vista 
(except for Cygwin builds)?
In the python docs for 2.4 - 2.5 I havent found conclusive data; the docs for 
2.6 seems to imply that.


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Re: [Tutor] Subject: Re: it is ok that object.__init__ gets called multiple times?

[claxo]

On Wed, 11 Jun 2008 20:47:48 -0400 Kent Johnson <[EMAIL PROTECTED]> wrote:
> This thread has both points of view:
> http://coding.derkeiler.com/Archive/Python/comp.lang.python/2004-12/4599.html
> 
> I think if you are using super() then your classes that inherit from
> object still need to call super().__init__(). If you are not using
> super I don't think it matters.
> 
> Kent

Yes, you are right. 
Thanks for the pointer Kent, the discussion there tells me the whys. 

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[Tutor] Subject: Re: it is ok that object.__init__ gets called multiple times?

[claxo]

>> In the following code the __init__ for C would end calling two times
object.__init__ .  >> Is this ok or I calling for trouble ?  >> To make
explicit some context:  >>object is the std python object >>super
is not suposed to be used in any subclass

>Why not? This seems to me the problem super is designed to solve. Googling
super + new classes I found http://fuhm.net/super-harmful/ There it seems
that super is not so simple to use, so I wanted to stay away.

>OTOH why are you calling object.__init__() ? I don't think that is
needed...  >Kent

I dont know what object may do in his __init__ method, so at least calling
object.__init__(self) seems sensible.  Also, the same page advises against
not calling object.__init__.  On the other side, today I have seen in
another thread ( New Style  Classes ) that wesley chun not pointed as
erroneous some new class code that doenst call object.__init__.  Im
confused.

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[Tutor] it is ok that object.__init__ gets called multiple times?

[claxo]

In the following code the __init__ for C would end calling two times 
object.__init__ .
Is this ok or I calling for trouble ?
To make explicit some context:
object is the std python object
super is not suposed to be used in any subclass

class A(object):
def __init__(self,**kwargs):
object.__init__(self,**kwargs)
self.m_a = kwargs['ka']

class B(object):
def __init__(self,**kwargs):
object.__init__(self,**kwargs)
self.m_b = kwargs['kb']

class C(A,B):
def __init__(self,**kwargs):
A.__init__(self,**kwargs)
B.__init__(self,**kwargs)



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Re: [Tutor] Logging with proper format

[claxo]

dont indent the line after '\', that means 0 indent

s = 'hello\
boy'


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Re: [Tutor] File Writing Permission?

[claxo]

> if os.name == "posix":
> fname = "~/" + fname
> infile = open(fname,"w")


you must expand '~' before open:

  fname = os.path.join('~',fname)
  fname = os.path.expanduser( fname )
   infile = open(fname,'w')
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