Property confusion

[kepes.krisztian]

Hi !

I don't understand something:

See that code:
class A(object):
__slots__=('x','a','__v')
def __init__(self):
self.__v=0
def g(self):
print "g"
return self.__v
def s(self,v):
self.__v=v
print "s"
GS=property(g,s)

a=A()
print a.g()
a.s(1)
print a.g()
#print a.GS
a.GS=2
print a.GS
print a.g()

It is working.
But when we remove slots, it is missing: the a.GS is not used as
property, it is access a local member. Why ?

class A(object):
def __init__(self):
self.__v=0
def g(self):
print "g"
return self.__v
def s(self,v):
self.__v=v
print "s"
GS=property(g,s)

a=A()
print a.g()
a.s(1)
print a.g()

#print a.GS
a.GS=2
print a.GS
print a.g()


Thanx for a help:
FT

 

[Peter Otten]

kepes.krisztian wrote:

[Same old question under a new subject]

If you don't receive an answer within a reasonable time span you should
consider rephrasing the problem, not just the header.

I tried the code you gave and could not perceive any difference in the
output of the two snippets. Maybe you can post an interactive session with
just the statements that produce different output? Or you rename one class,
to B, say, and add an assertion you expect to succeed but which fails, e.
g.:

class A(object):
#...
class B(object):
#...

assert A().some_attr == B().some_attr


Peter