return Adder(self.x+other.x)
def __getattr__(self, name):
print(name)
raise AttributeError
like a sensible person.
Saul
On Monday, February 4, 2013 8:15:47 AM UTC-6, Peter Otten wrote:
> Saul Spatz wrote:
>
>
>
> > Now I have another question. If dunder methods are look
On Sunday, February 3, 2013 10:35:30 PM UTC-6, Steven D'Aprano wrote:
> On Sun, 03 Feb 2013 17:08:47 -0800, Saul Spatz wrote:
>
>
>
> > I don't understand what's going on at all. Can't I dynamically define
>
> > __getattr__? How should I go
To the good people on comp.lang.python:
I have the following Tkinter class (python 2.7.3):
from Tkinter import *
class ScrolledCanvas(Frame):
def __init__(self, master, width, height, bg, cursor):
Frame.__init__(self, master)
self.__nonzero__ = lambda: True
canv = self.canvas = Can
Thanks a lot; I didn't know about sys.executable. For the record, IDLE is
running pythonw.exe. I won't have a chance to test if this helps till
tomorrow, unfortunately.
--
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I've been using pymysql to connect to a database, and it has suddenly stopped
working on the one machine (a virtual server) where I really need it to work.
I have a function with hard-coded parameters to do the connection, and now I'm
getting an error that says, "Can't connect to MySQL server o
Thanks, that a great link.
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Yes, the tuple is certainly easier to read.
Thanks again.
--
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That doesn't work, I'm being stupid, The user might type anywhere in the
string, not just at the end. I need
return all([c in '1234567890abcdefABCDEF ' for c in after])
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Thanks so much, this is great. I want to validate that the user is entering a
string appropriate for bytes.fromhex. Here's how I modified your validate
funtion:
def validate(before, after):
print(before, "-->", after)
#return after.isdigit()
return after[-1] in '1234567890abcdefABC
I want to interface to the native validation of tk. If you don't know what
that is, you're unlikely to be able to help me.
--
http://mail.python.org/mailman/listinfo/python-list
In tcl/tk an Entry widget can be set to validate its contents with the validate
option. You have to give it a validatecommand (vcmd), which is a tcl script
that runs when some action triggers validation. Usually, the script would use
"percent substitutions" so the script would be something lik
Thanks very much. This is the elegant kind of solution I was looking for. I
had hoped there was a way to do it without even addressing the matter of
surrogates, but apparently not. The reason I don't like this is that it
depends on knowing that python internally stores strings in UTF-16. I e
Thanks. I agree with you about the generator. Using your first suggestion,
code points above U+ get separated into two "surrogate pair" characters
fron UTF-16. So instead of U=10 I get U+DBFF and U+DFFF.
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It works if you change it like so:
from tkinter import *
class ShowList(Frame):
def __init__(self, root):
Frame.__init__(self, root)
self.grid()
self.draw_widgets()
def draw_widgets(self):
cframe = Frame(self)
This is the third time I've tried to post this reply. If you see multiple
answers from me, that's why.
Your script will work if you change it like so:
from tkinter import *
class ShowList(Frame):
def __init__(self, root):
Frame.__init__(self, root)
self.g
It works if you change it like so:
from tkinter import *
class ShowList(Frame):
def __init__(self, root):
Frame.__init__(self, root)
self.grid()
self.draw_widgets()
def draw_widgets(self):
cframe = Frame(self)
Hi,
I'm just starting to learn a bit about Unicode. I want to be able to read a
utf-8 encoded file, and print out the codepoints it encodes. After many false
starts, here's a script that seems to work, but it strikes me as awfully
awkward and unpythonic. Have you a better way?
def codePoints
The documentation refers to the Demo directory in the source. I've downloaded
the source tarball for python 3.2 and there's no such directory. I downloaded
the source for python 2.7 to check, and the Demo directory is present. Has the
directory been moved, renamed or eliminated in 3.2? Thank
On Nov 25, 8:40 am, Jean-Michel Pichavant
wrote:
> Hy guys,
>
> I'm struggling matching patterns ending with a comma ',' or an end of
> line '$'.
>
> import re
>
> ex1 = 'sumthin,'
> ex2 = 'sumthin'
> m1 = re.match('(?P\S+),', ex1)
> m2 = re.match('(?P\S+)$', ex2)
> m3 = re.match('(?P\S+)[,$]', ex
Hi,
I've been trying to install PyQt on Windows XP Pro so that I can try
out eric ide. I used the binary windows installer for PyQt. I can
run eric as administrator, but not with my ordinary user account. By
running eric.bat with the --debug flag, I found that he crux of the
problem is that if
When I double-click on a file with a .pyw extension, nothing appears to
happen. Control panel shows that pythonw is associated with this extension,
and if I right-click on the filename, the program suggested to open it is
pythonw.exe. If I make a desktop shortcut with the target pythonw.exe
myScr
W. eWatson wrote:
I'm looking a program that I'm not real familiar with that uses an
after_cancel method and after_id variable. Are they related to some
particular widget and what is there function? Perhaps they are related
to a Cancel button on a widget?
http://www.pythonware.com/library/tk
Dietrich Bollmann wrote:
Hi,
I am trying to write a simple shell loop in Python.
My simple approach works fine - but the first output line after entering
something is always indented by one blank.
Is there any logic explanation for this?
How can I get rid of the blank?
Is there a smarter
I'm running python 2.5.x on Windows XP, and I installed 3.0, just to get
familiar with it. I have a directory with all my python projects in my
PYTHONPATH variable. When I try to run python 3.0, it detects a syntax
error (a print statement) in the first file in this directory, and
crashes. I
defn noob wrote:
if start == end:
return path
if not self.dictionary.has_key(start):
if start not in self.dictionnary:
return None
for node in self.dictionary[start]:
if node not in path:
newpath = find_path
format the strings:
http://www.python.org/doc/2.1.3/lib/typesseq-strings.html
[EMAIL PROTECTED] wrote:
Hi All,
How do I format printed data in python?
I could not find this in the Python Reference Manual:
http://docs.python.org/ref/print.html
Nor could I find it in Matloff's great tutorial:
h
Cédric Lucantis wrote:
Le Sunday 22 June 2008 16:07:37 Saul Spatz, vous avez écrit :
Hi,
I'm making a project into my first package, mainly for organization, but
also to learn how to do it. I have a number of data files, both
experimental results and PNG files. My project is organized
Hi,
I'm making a project into my first package, mainly for organization, but
also to learn how to do it. I have a number of data files, both
experimental results and PNG files. My project is organized as a root
directory, with two subdirectories, src and data, and directory trees
below them.
macoovacany wrote:
http://macoovacany.wordpress.com/
When I tried to run it, I got all kinds of syntax errors because of
non-ASCII characters; namely, you have fancy left and right single
and double quotes. Once I replaced these with the ASCII equivalents,
it worked fine. I suggest you use a
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