[Tutor] 3 simple, pithy and short questions (fwd)
dyoo at hkn.eecs.berkeley.edu
Fri Nov 21 15:45:07 EST 2003
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---------- Forwarded message ----------
Date: Fri, 21 Nov 2003 05:27:32 +0100
From: Tadey <tayiper at volja.net>
To: Danny Yoo <dyoo at hkn.eecs.berkeley.edu>
Subject: 3 simple, pithy and short questions
I discovered in-built help as late as now (or I know there was some help,
but didn't know how to use it eficiently), so it is really helpfull ...
though sometimes a little indistinct for "pure" begginer ...
So I have a few very simple, pithy and short questions:
1.) Where is the difference between "processing" some functon (let say
"str" function) like str(a) and like a.__str__() ??
See two examples below:
>>> a = "ww"
2.) What hash function does ?? I noticed, that in case if some random
string is assigned to variable, it returns some long/huge number ....
See example below:
>>> b = "r"
3.) About __getattribute__ function: In help it is "represented" by
a.getattribute('name') <=> a.name But whatever I typed, I couldn't get
some "reasonable" output, meaning I always got an error message ...
>>> a= ("ww", "rr", "gggg")
Error: attribute name must be a string
Error: string object has no atrribute "rr"
Error: function takes exactly 1 argument (0 given)
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