473,394 Members | 1,759 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,394 software developers and data experts.

Re: Enhanced property decorator

On Aug 25, 8:45*pm, Daniel <miller...@gmail.comwrote:
I've often been frustrated by the inability of the built-in property
descriptor to handle anything other than a read-only property when
used as a decorator. Furthermore, read/write/delete properties take
their doc-string and property definition at a non-intuitive and
awkward place (after the getter/setter/delter functions). The
following are three possible solutions to this problem (inspired by
messagehttp://groups.google.com/group/comp.lang.python/msg/9a56da7ca8ceb7c7).
I don't like the solution in that thread because it uses apply() which
will go away in Python 3.
I didn't read the rest of the thread, but I think Python 2.6 may have
want you want:

class A(object):

@property
def my_prop(): return self._prop

@my_prop.setter
def my_prop(prop): self._prop = prop

@my_prop.deleter
def my_prop(): del self._prop
Aug 26 '08 #1
2 1837
On 25 Aug, 21:52, Benjamin <musiccomposit...@gmail.comwrote:
... I think Python 2.6 may have
want you want:

class A(object):

* * @property
* * def my_prop(): return self._prop

* * @my_prop.setter
* * def my_prop(prop): self._prop = prop

* * @my_prop.deleter
* * def my_prop(): del self._prop
Hmm, interesting. I wonder if it suppports setting the doc-string in a
similar way? I'll have to look into that. Thanks for pointing this
out.

~ Daniel
Aug 26 '08 #2
On Aug 25, 9:00*pm, Daniel <miller...@gmail.comwrote:
On 25 Aug, 21:52, Benjamin <musiccomposit...@gmail.comwrote:
... I think Python 2.6 may have
want you want:
class A(object):
* * @property
* * def my_prop(): return self._prop
* * @my_prop.setter
* * def my_prop(prop): self._prop = prop
* * @my_prop.deleter
* * def my_prop(): del self._prop

Hmm, interesting. I wonder if it suppports setting the doc-string in a
similar way? I'll have to look into that. Thanks for pointing this
out.
It takes the getter's docstring as usual.
>
~ Daniel
Aug 27 '08 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

30
by: Ron_Adam | last post by:
I was having some difficulty figuring out just what was going on with decorators. So after a considerable amount of experimenting I was able to take one apart in a way. It required me to take a...
22
by: Ron_Adam | last post by:
Hi, Thanks again for all the helping me understand the details of decorators. I put together a class to create decorators that could make them a lot easier to use. It still has a few glitches...
4
by: Colin J. Williams | last post by:
Is there some way that the user can access the docstring specified for a property? Please see the example below: # propDocTest class A(object): def __init__(self, value): self.value= value...
8
by: lab3terch | last post by:
I have built an enhanced button control which I want to use to capture the number of times the button has been clicked. I have added the new control to a test program but cannot get it to work. The...
0
by: lab3terch | last post by:
I have built an enhanced button control which I want to use to capture the number of times the button has been clicked. I have added the new control to a test program but cannot get it to work. The...
0
by: lab3terch | last post by:
I am using Visual Studio.NET 2003 and have built a enhanced button control (enhbutton) to capture the number of times the button has been clicked. I did the code and did a build. I then added a test...
11
by: king kikapu | last post by:
Hi to all, i am trying to use properties in Python and i am sure i have made something wrong with the below code but i just cannot see what it is. Can anyone please help me on this ? The...
4
by: thomas.karolski | last post by:
Hi, I would like to create a Decorator metaclass, which automatically turns a class which inherits from the "Decorator" type into a decorator. A decorator in this case, is simply a class which...
0
by: Ben Finney | last post by:
Daniel <millerdev@gmail.comwrites: The fact that the 'property' function works as a decorator (in, as you point out, some cases only) is a happy accident. The 'property' function isn't...
14
by: Rafe | last post by:
Hi, I've encountered a problem which is making debugging less obvious than it should be. The @property decorator doesn't always raise exceptions. It seems like it is bound to the class but...
0
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
0
by: emmanuelkatto | last post by:
Hi All, I am Emmanuel katto from Uganda. I want to ask what challenges you've faced while migrating a website to cloud. Please let me know. Thanks! Emmanuel
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However,...
0
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can...
0
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven...
0
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.