Supposing I have a class like this:
class wiimote(object):
def __init__(self):
self.leds = [0,0,0,0]
def updateLEDs(self):
do_stuff()#write correct output report to wiimote to toggle LEDs.
So basically what I want to do is that whenever the self.leds variable
is changed,
Luke Paireepinart [EMAIL PROTECTED] wrote
class wiimote(object):
def __init__(self):
self.leds = [0,0,0,0]
def updateLEDs(self):
do_stuff()#write correct output report to wiimote to toggle
LEDs.
So basically what I want to do is that whenever the self.leds
variable
Something in python disturbs me ,
when i write a for loop,
i am able to access the variable declared in that loop after the loop finishes
which i am not able to do in languages like c/c++ or java. Is it different in
python?
-
Ahhh...imagining that
On 4/24/07, ammar azif [EMAIL PROTECTED] wrote:
i am able to access the variable declared in that loop after the loop
finishes which i am not able to do in languages like c/c++ or java. Is it
different in python?
I'm not sure what you mean with different, but the loop-variable is
not
On Tue, 24 Apr 2007 00:09:21 +0100
Alan Gauld [EMAIL PROTECTED] wrote:
John DeStefano [EMAIL PROTECTED] wrote
I've run into an error that I've seen reported in several places,
but
none of the fixes seem to be working for me: when I try to import
Tkinter I get a configuration error:
Luke Paireepinart wrote:
Supposing I have a class like this:
class wiimote(object):
def __init__(self):
self.leds = [0,0,0,0]
def updateLEDs(self):
do_stuff()#write correct output report to wiimote to toggle LEDs.
So basically what I want to do is that whenever
Hello All,
I am very new to Python scripting. I have just started learning about Python.
I have a question regarding UserDict class.
UserDict class has a copy function which is defined as follows:
def copy(self):
if self.__class__ is UserDict:
return UserDict(self.data)
import
ammar azif wrote:
Something in python disturbs me ,
when i write a for loop,
i am able to access the variable declared in that loop after the loop
finishes which i am not able to do in languages like c/c++ or java. Is
it different in python?
Yes, it is different. In Python a block is
Hi,
I am using http to automate my Access point(AP) configuration where I sent
following strings to AP server through script.
params = urllib.urlencode
({'WRegion':USA,'ssid':wifi,'ap':ap,'ssid_enable':ssid_enable,*
'wire_mode':b+only,*
'w_channel':6,'lan_ac':everyone,'int_ac':everyone})
Above
Hi,
govind goyal wrote:
Hi,
I am using http to automate my Access point(AP) configuration where I sent
following strings to AP server through script.
params = urllib.urlencode
({'WRegion':USA,'ssid':wifi,'ap':ap,'ssid_enable':ssid_enable,*
'wire_mode':b+only,*
govind goyal wrote:
Hi,
I am using http to automate my Access point(AP) configuration where I
sent following strings to AP server through script.
params =
urllib.urlencode({'WRegion':USA,'ssid':wifi,'ap':ap,'ssid_enable':ssid_enable,*'wire_mode':b+only,*
Sorry about that kent. I just realized I emailed you directly.
Ezra
On 4/24/07, Kent Johnson [EMAIL PROTECTED] wrote:
ammar azif wrote:
Something in python disturbs me ,
when i write a for loop,
i am able to access the variable declared in that loop after the loop
finishes which i am
Ezra Taylor wrote:
Hello Kent:
How can we limit this functionality so that python
behaves similar to other know languages. Maybe I should be asking what
are the benifits of allow variables not being bound to a block of code.
Why is this a problem? Don't try to turn
Michael Lange [EMAIL PROTECTED] wrote:
Usually there is no need to pass extra arguments to configure.
My guess is that you missed to install Tcl / Tk and/or the Tcl/Tk development
packages before compiling python.
That was it: I had both Tcl and Tk installed, but not the development
packages
Make leds a property:
class wiimote(object):
def __init__(self):
self._leds = [0, 0, 0, 0]
def _set_leds(self, leds):
self._leds = leds
self._updateLEDs()
def _get_leds(self):
return self._leds
leds = property(_get_leds, _set_leds)
On 4/24/07, Ketan Joshi [EMAIL PROTECTED] wrote:
If so, why isn't this function defined as:
def copy(self):
import copy
return copy.copy(self)
The if-case in your code makes sure that the property __class__ is of
UserDict-inheritance. I believe it's there in case of multiple
Luke Paireepinart wrote:
I know I could use a __setattr__ but then I'd have to access the leds
using a dictionary with an 'LED' key mapped to the status array.
It's not necessarily a bad thing for my own use, but it seems like
it'd be off-putting to other people using my library.
I don't
hello all,
i have a gui app that uses functions to respond to gui events.
like
def on_start_button_clicked(self, stuff):
do this or that.
now there is one function that i have a kinda nested if else
conditions that i need to stop if necessary
if value == 1:
if next_val == 4:
do
-- Forwarded message --
From: Andre Engels [EMAIL PROTECTED]
Date: 24 apr. 2007 17:18
Subject: Re: [Tutor] how to stop a function
To: shawn bright [EMAIL PROTECTED]
2007/4/24, shawn bright [EMAIL PROTECTED]:
hello all,
i have a gui app that uses functions to respond to gui
shawn bright wrote:
now there is one function that i have a kinda nested if else
conditions that i need to stop if necessary
if value == 1:
if next_val == 4:
do this or that
else:
here i need the function to just die
do somthing here
is there something i can
jeeze, thanks, sorry, stupid question.
On 4/24/07, Kent Johnson [EMAIL PROTECTED] wrote:
shawn bright wrote:
now there is one function that i have a kinda nested if else
conditions that i need to stop if necessary
if value == 1:
if next_val == 4:
do this or that
No, the above code should work with classinstance.leds. Maybe you are
confusing __setattr__ - which affects attributes like .leds - with
__setitem__ which is used for classinstance['leds']
Ah, yes. You hit the hail on the nead there, Kent. Thanks for
clarifying that for me.
Is this
Thanks to everybody for the replies. I got some nice pointers.
I know my design is nasty, but that is because I am learning...Putting
object orientation in the mix, I have this question:
I have an object, person, which is assosiated with some statistical
data. Say for each person object, I need
Luke Paireepinart wrote:
I can see how some people might be surprised to know that changing
classinstance.leds automagically sends a communication packet to the wii
remote without their knowledge, but if they're aware of the side-effect,
it seems to be a more elegant way of doing things to
On 4/24/07, shawn bright [EMAIL PROTECTED] wrote:
is there something i can do to make this happen?
Use the keyword return.
--
- Rikard - http://bos.hack.org/cv/
___
Tutor maillist - Tutor@python.org
http://mail.python.org/mailman/listinfo/tutor
Luke Paireepinart [EMAIL PROTECTED] wrote
Is this properties method acceptable Python form or is it more
proper to
have modifying member functions like Alan said?
Properties is fine and was one of the options that I suggested.
However I didn't mean you should have modifying member
functions
My apologies for asking a trivial question about programming practice.
As mentioned in the online tutorial
(http://docs.python.org/tut/node6.html#SECTION00670),
functions which lack a return statement ('procedures') actually return None.
For such functions, I assume it's preferred
ammar azif [EMAIL PROTECTED] wrote
Something in python disturbs me ,
when i write a for loop, i am able to access the variable
declared in that loop after the loop finishes which i am
not able to do in languages like c/c++ or java.
That's a very recent change to C/C++ (1999
Ezra Taylor wrote:
How can we limit this functionality so that
python
behaves similar to other know languages.
There are many other languages that work like Python.
Including the original versions of C and C++...
And other languages that don't have explicit loop
On the debug control, what is the difference between go, over, and out?
Thank you,
J.T.
___
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Thanos Panousis [EMAIL PROTECTED] wrote
data. Say for each person object, I need an object variable called
hairColor. This haircolor variable has to be filled through an SQL
query, so the object must have some way to access a database cursor.
The cool thing would be that all person objects
My opinion is that one should not create or set a variable if its
value is not used. In the case mentioned, you know what the return
value will be, so there seems to be no reason to keep it.
2007/4/24, Cecilia Alm [EMAIL PROTECTED]:
My apologies for asking a trivial question about programming
Thanos Panousis wrote:
I have an object, person, which is assosiated with some statistical
data. Say for each person object, I need an object variable called
hairColor. This haircolor variable has to be filled through an SQL
query, so the object must have some way to access a database cursor.
OK, that's my opinion too.
Thanks!
2007/4/24, Andre Engels [EMAIL PROTECTED]:
My opinion is that one should not create or set a variable if its
value is not used. In the case mentioned, you know what the return
value will be, so there seems to be no reason to keep it.
2007/4/24, Cecilia Alm
J.T. Hurley wrote:
On the debug control, what is the difference between go, over, and out?
What debug control are you using?
Debuggers usually have three kinds of stepping. The names vary but the
concepts are the same:
step in - execute the next line of code; if it is a subroutine call,
stop
Cecilia Alm [EMAIL PROTECTED] wrote
functions which lack a return statement ('procedures') actually
return None.
For such functions, I assume it's preferred to not catch None in a
variable.
You can catch it if you like, but since functions with no return
*always* return None there is
J.T. Hurley [EMAIL PROTECTED] wrote
On the debug control, what is the difference between go, over,
and out?
Cabeat, I haven't checked, but from memory:
go = Run the program from the current point onwards
until you hit the next break point or until it ends.
over = step over the function on
Am I wrong in my memory? When I was a wee lad prior to 99 for sure),
I thought I would initialize my loops with:
for (int x=0; x 10; x++) {
}
I am rapidly veering off topic.
On 4/24/07, Alan Gauld [EMAIL PROTECTED] wrote:
Correcting my own post!
Alan Gauld [EMAIL PROTECTED] wrote
That's
I checked the SQLAlchemy and SQLObject projects, but they are not
really relevant to what I am doing(moreover they are more than I can
chew just yet:).
I managed to get a class variable to hold a cursor via something like
class person:
cursor = MySQLdb.connect(stuff).cursor()
BUT when I
Kent: I'm using IDLE's built-in debugger.
Alan: I just tried it out, and you were spot-on.
Thank you both for your assistance. I think I've got the hang of it
now. It'll certainly speed me up now that I don't have to step through
each function.
Thanks again,
J.T.
Thanos Panousis [EMAIL PROTECTED] wrote in
I managed to get a class variable to hold a cursor via something
like
class person:
cursor = MySQLdb.connect(stuff).cursor()
BUT when I make a function inside my class called myConnect, where I
do error checking and so on, I can't make it
Ben Sherman schreef:
Am I wrong in my memory? When I was a wee lad prior to 99 for sure),
I thought I would initialize my loops with:
for (int x=0; x 10; x++) {
}
If that was in C, it must have been a special feature of your compiler.
--
If I have been able to see further, it was only
Ben Sherman [EMAIL PROTECTED] wrote
Am I wrong in my memory? When I was a wee lad prior to 99 for
sure),
I thought I would initialize my loops with:
for (int x=0; x 10; x++) {
You certainly could in C++ but I'm less sure about C.
You certainly couldn't do that in C prior to ANSI C
(in
Kent Johnson wrote:
J.T. Hurley wrote:
On the debug control, what is the difference between go, over, and out?
What debug control are you using?
Debuggers usually have three kinds of stepping. The names vary but the
concepts are the same:
step in - execute the next line of code; if it
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