Mark attribute as read-only

[Florian Lindner]

Hello,
how can I mark a attribute of a class as read-only (for non classmembers)?
Yes, stupid question, but the docu gave me no help.

Thanks,

Florian

 

[Steven Bethard]

how can I mark a attribute of a class as read-only (for non classmembers)?
Yes, stupid question, but the docu gave me no help.

Declare it as such in the documentation.

If you want to provide error messages, you could alternatively define a
property:

py> class C(object):
.... def _getx(self):
.... return self._x
.... x = property(fget=_getx)
.... def __init__(self, x):
.... self._x = x
....
py> c = C(4)
py> c.x
4
py> c.x = 6
Traceback (most recent call last):
File "<interactive input>", line 1, in ?
AttributeError: can't set attribute

STeVe