PLS HELP..I am working on socket programming as part of my final year
project. I want to know how to set a timeout on read api that reads
from a socket. Is it possible using SIGALRM signal?Will setting
O_NONBLOCK flag of the socket help? Is there any other way to do it?
--
Fredrik Lundh [EMAIL PROTECTED] writes:
PEP 348 addresses this by moving special exceptions out of the
Exception hierarchy:
http://www.python.org/peps/pep-0348.html
I see that suggestion was rejected (it needed changing the semantics
of except:). Also, PEP 348 was rejected and is a
Swaroop [EMAIL PROTECTED] writes:
PLS HELP..I am working on socket programming as part of my final year
project. I want to know how to set a timeout on read api that reads
from a socket. Is it possible using SIGALRM signal?Will setting
O_NONBLOCK flag of the socket help? Is there any other way
Paul Boddie [EMAIL PROTECTED] writes:
Sandboxed code is a real obvious one.
I don't disagree that this is true in general, but is that actually
covered in the design patterns book [1] or in other related literature?
It's been a while since I looked at the design patterns book and I
don't
Dennis Lee Bieber wrote:
On Fri, 03 Mar 2006 20:12:22 +, Luis P. Mendes
[EMAIL PROTECTED] declaimed the following in
comp.lang.python:
I'm beggining to suspect that the problem has to do with a discontinual
of service of the ISP. It provides me a dynamic IP address not a static
one.
On Sat, 04 Mar 2006 08:41:48 +0100, Fredrik Lundh wrote:
Paul Rubin wrote:
I'd like to suggest adding a builtin abstract class to Python called
AsynchronousException, which would be a subclass of Exception. The
only asynchronous exception I can think of right now is
KeyboardInterrupt, so
[EMAIL PROTECTED] wrote:
hi
wish to ask a qns on strip
i wish to strip all spaces in front of a line (in text file)
f = open(textfile,rU)
while (1):
line = f.readline().strip()
if line == '':
break
print line
f.close()
in textfile, i added
Paul Rubin wrote:
Fredrik Lundh [EMAIL PROTECTED] writes:
PEP 348 addresses this by moving special exceptions out of the
Exception hierarchy:
http://www.python.org/peps/pep-0348.html
I see that suggestion was rejected (it needed changing the semantics
of except:). Also, PEP 348 was
Does any one having working python 2.4 compiler can give some details
on how to set it up ?
I've read lot of different website, but some are outdated, others
referencing dead links, ...
I would just use an existing python 2.3 module (VC6) to python-2.4.
I think the best is to recompile it with
[EMAIL PROTECTED] wrote:
f = open(textfile,rU)
while (1):
line = f.readline().strip()
if line == '':
break
print line
f.close()
Be warned that your code doesn't read the whole file if that file contains
lines with only whitespace characters. If you
On 25 Feb 2006 18:06:15 -0800, rumours say that [EMAIL PROTECTED] might
have written:
Hello,
snip
I do not know how to mount or unmount drives on Windows. I think that
it could possibly be done with a DOS command (using os.system()).
mountvol is the command you want. I know it's in winxp, I
On 2 Mar 2006 17:53:38 -0800, rumours say that Sullivan WxPyQtKinter
[EMAIL PROTECTED] might have written:
I do not know if there is any lib specially designed to process the
strings in scipt language.
for example:
I hope to process the stringprint a,b,c,d,e in the formcommand
argumentlist and
pierlau napisał(a):
You can call methods/functions in a .dll using ctypes.
http://starship.python.net/crew/theller/ctypes/
I have tried with ctypes.
I acheived to load the library
it works when I use following instructions :
print windll.OPCDAAuto or print cdll.OPCDAAuto
(i see an
Roy Smith:
I like to create a top-level exception class to encompass all the
possible errors in a given module, then subclass that. This way, if you
want to catch anything to goes wrong in a call, you can catch the top-level
exception class without having to enumerate them all.
What do you
James Stroud:
Which suggests that try: except HTTPException: will be specific enough
as a catchall for this module.
The following, then, should catch everything you mentioned except the
socket timeout:
Your conclusion may be (almost) right in this case. I just don't like this
approach.
Peter Hansen:
Good code should probably have a very small set of real exception
handling cases, and one or two catchalls at a higher level to avoid
barfing a traceback at the user.
Good point.
A catchall seems like a bad idea, since it also catches AttributeErrors
and other bugs in the
Paul Rubin http://[EMAIL PROTECTED]:
We have to get Knuth using Python.
Perhaps a MIX emulator and running TeXDoctest on his books will convince
him..
--
René Pijlman
--
http://mail.python.org/mailman/listinfo/python-list
[EMAIL PROTECTED] wrote:
Does any one having working python 2.4 compiler can give some details
on how to set it up ?
I've read lot of different website, but some are outdated, others
referencing dead links, ...
I would just use an existing python 2.3 module (VC6) to python-2.4.
I think
Steven D'Aprano:
ExpectedErrors = (URLError, IOError)
ErrorsThatCantHappen =
try:
process_things()
except ExpectedErrors:
recover_from_error_gracefully()
except ErrorsThatCantHappen:
print Congratulations! You have found a program bug!
print For a $327.68 reward, please send the
Rene Pijlman [EMAIL PROTECTED] writes:
With low coverage, yes. But unit testing isn't the answer for this
particular problem. For example, yesterday my app was surprised by an
httplib.InvalidURL since I hadn't noticed this could be raised by
robotparser (this is undocumented). If that fact
Rene Pijlman [EMAIL PROTECTED] wrote:
A catchall seems like a bad idea, since it also catches AttributeErrors
and other bugs in the program.
All of the things like AttributeError are subclasses of StandardError. You
can catch those first, and then catch everything else. In theory, all
fortepianissimo wrote:
Say I have the following package organization in a system I'm
developing:
A
|B
|C
|D
I have a module, say 'foo', that both package D and B require. What is
the best practice in terms of creating a 'common' package that hosts
'foo'? I want
Another option would be FarPy GUIE: http://farpy.holev.com
--
http://mail.python.org/mailman/listinfo/python-list
Jorge Godoy:
Rene Pijlman:
my app was surprised by an
httplib.InvalidURL since I hadn't noticed this could be raised by
robotparser (this is undocumented).
It isn't undocumented in my module. From 'pydoc httplib':
That's cheating: pydoc is reading the source :-)
What I meant was, I'm
Roy Smith:
In theory, all exceptions which represent problems with the external
environment (rather than programming mistakes) should derive from
Exception, but not from StandardError.
Are you sure?
The class hierarchy for built-in exceptions is:
Exception
+-- StandardError
|
I'm not sure if this is how I'm supposed to post, but I saw a thread entitled,
Help with os.spawnv, that I wanted to respond to.
I believe if you change the variable pyScript from:
E:\\Documents and
Settings\\Administrator\\Desktop\\Ian\\GIS\\Python\\subProcess2.py
to
'E:\Documents and
Kent Johnson [EMAIL PROTECTED] writes:
What I do is run always from the base directory (violates your first
requirement). I make a util package to hold commonly used code. Then B and D
both use
from util import foo
In Python 2.5 you will be able to say (in D, for example)
from ..util
About a year ago I dev'ed a host app in Python (2.3 at that time) to control
a KUKA KR16 robot. Comm was over OPC. The OPC 2.0 server was inst'ed on the
KRC2. What I was needed to do, was to install the appropriate (i.e. delivere
together w/ the server) client software and to take Mark Hammonds
[EMAIL PROTECTED] schrieb:
Is there a way to hide a python instance from the Task Manager process
list?
Try sony's rootkit. Or any other.
Diez
--
http://mail.python.org/mailman/listinfo/python-list
A lot of the complexity of design patterns in Java falls away
in Python, mainly because of the flexibility you get with dynamic
typing.
For a Pythonic Perspective on Patterns, Python Programming Patterns
by Thomas W. Christopher is definitely worth tracking down. It
looks like it is out of
In article [EMAIL PROTECTED],
Rene Pijlman [EMAIL PROTECTED] wrote:
Roy Smith:
In theory, all exceptions which represent problems with the external
environment (rather than programming mistakes) should derive from
Exception, but not from StandardError.
Are you sure?
The class
Paul Novak 写道:
A lot of the complexity of design patterns in Java falls away in
Python, mainly because of the flexibility you get with dynamic typing.
I agree with this very much !
In java or C++ or all such static typing and compiled languages , the
type is fixed on
in the compile phrase ,
Paul Novak :
A lot of the complexity of design patterns in Java falls away in
Python, mainly because of the flexibility you get with dynamic typing.
I agree with this very much !
In java or C++ or all such static typing and compiled languages , the
type is fixed on
in the compile phrase , so
I have made and recently posted a libary I made to do Modular
Arithmetic and Prime numbers on my website at
http://www.geocities.com/brp13/Python/index.html . I am currently in a
crypotology class, and am working on building a RSA public key
cryptology system for a class project. I am building
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Thank you all for your suggestions.
Luis P. Mendes
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.1 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org
iD8DBQFECb5AHn4UHCY8rB8RAmeLAKCmSVfTvgQ94NPnJlD2QqdbMwVFXACdGFAh
On 3 Mar 2006 17:33:31 -0800
sturlamolden [EMAIL PROTECTED] wrote:
1. Time is money. Time is the only thing that a scientist
cannot afford to lose. Licensing fees for Matlab is not an
issue. If we can spend $1,000,000 on specialised equipment
we can pay whatever Mathworks or Lahey charges as
hi
i have a file with
xxx.xxx.xxx.xxx:yyy
xxx.xxx.xxx.xxx:yyy
xxx.xxx.xxx.xxx:yyy
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx:yyy
i wanna split on : and get all the yyy and print the whole line out
so i did
print line.split(:)[-1]
but line 4 and 5 are not printed as there is no : to
[EMAIL PROTECTED] wrote:
print line.split(:)[-1]
but line 4 and 5 are not printed as there is no : to split. It should
print a blank at least.
how to print out lines 4 and 5 ?
eg output is
yyy
yyy
yyy
yyy
if : in line:
print line.split(:)[-1]
else:
print
what's the
On Fri, 3 Mar 2006 07:19:34 -0500, Peter Decker [EMAIL PROTECTED]
wrote:
I started with wxPython and struggled with it for a long time. I was
able to get the job done, but using it never seemed natural. Then I
found the Dabo project, whose ui module wraps wxPython into a much
more Pythonic,
Paul Rubin http://[EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Fredrik Lundh [EMAIL PROTECTED] writes:
PEP 348 addresses this by moving special exceptions out of the
Exception hierarchy:
http://www.python.org/peps/pep-0348.html
I see that suggestion was rejected (it needed
Terry Hancock [EMAIL PROTECTED] wrote:
In fact, if I had one complaint about Python, it was the
with a suitable array of add-ons caveat. The proprietary
alternative had all of that rolled into one package (abeit
it glopped into one massive and arcane namespace), whereas
there was no Python
I have discoved that the mod function isn't quite right in dealing with
powers, but, I'll have it fixed shortly.
--
http://mail.python.org/mailman/listinfo/python-list
Tuvas [EMAIL PROTECTED] wrote:
...
to make sure. For simpler than going to the website, I used the ranint
I assume you mean random.randint here.
function to pick a random prime number, then ran it through the miller
rabin primality test. It's a probabalistic test, which means it isn't
Is there an *easy* way to make an object immutable in
python? Or perhaps I should say one obvious way to do it?
Oughtn't there to be one?
I've found a thread on how to do this[1], which essentially
says something like redefine __setattr__, __delattr__,
__hash__, __eq__, __setitem__, delitem__
There is a range of folks doing scientific programming. Not all of them
are described correctly by your summary, but many are. The article is
aimed not at them, but rather at institutions that develop engineered
Fortran models using multipuurpose teams and formal methods. I
appreciate your
Well, the RSA element's never going to encrypt more than a small, 1
block system except under rare occasions, the primary encryption will
be AES128. Thanks for the help though!
--
http://mail.python.org/mailman/listinfo/python-list
[EMAIL PROTECTED] wrote:
hi
i have a file with
xxx.xxx.xxx.xxx:yyy
xxx.xxx.xxx.xxx:yyy
xxx.xxx.xxx.xxx:yyy
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx
xxx.xxx.xxx.xxx:yyy
i wanna split on : and get all the yyy and print the whole line out
so i did
print line.split(:)[-1]
but line 4 and 5
sturlamolden wrote:
Typically a scientist need to:
1. do a lot of experiments
2. analyse the data from experiments
3. run a simulation now and then
unless you are a theorist! in that case, I would order this list backwards.
1. Time is money. Time is the only thing that a
Okay, the bug in my code has been fixed, it should work alot better
now... I thought I had tested the power function, but I appearently
wasn't even close... But now it works just fine.
I guess you are right, I will have to work on a better system to be
cryptologically secure. But, at least I have
ok, that does it! [EMAIL PROTECTED] a lot!
sorry first of all for my adding to the confusion when i jumped to
comment on that ``-u`` option thing---of course, **no -u option** means
**buffered**, positively, so there is buffering and buffering problems,
**with -u option** there is **no buffer**,
On 3/4/06, Bill Maxwell [EMAIL PROTECTED] wrote:
Dabo does look really nice, but seems like it has a ways to go yet.
I downloaded it a couple of weeks ago, and the very first thing I wanted
to do doesn't seem to be supported. I tried to create a simple
application with a Notebook control
Since this is a container that needs to be immutable, like a tuple,
why not just inherit from tuple? You'll need to override the __new__
method, rather than the __init__, since tuples are immutable:
class a(tuple):
def __new__(cls, t):
return tuple.__new__(cls, t)
cheers,
Jess
--
Rene Pijlman wrote:
Paul Rubin http://[EMAIL PROTECTED]:
We have to get Knuth using Python.
Perhaps a MIX emulator and running TeXDoctest on his books will convince
him..
Or maybe Python written for MIX...
-Roman
--
http://mail.python.org/mailman/listinfo/python-list
I noticed, that in just about all emacs programs on the web (elisp
code), it comes with this template text as its preamble:
;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License as
;; published by the Free Software
To be clear, in this simple example I gave you don't have to override
anything. However, if you want to process the values you place in the
container in some way before turning on immutability (which I assume
you must want to do because otherwise why not just use a tuple to begin
with?), then
hi,
This seems like a difficult question to answer through testing, so I'm
hoping that someone will just know... Suppose I have the following
generator, g:
def f()
i = 0
while True:
yield i
i += 1
g=f()
If I pass g around to various threads and I want them to always be
msoulier wrote:
I find that DP junkies don't tend to keep things simple.
+1 QOTW. There's something about these political threads that seems
to bring out the best quotes. b^)
--
http://mail.python.org/mailman/listinfo/python-list
Rene Pijlman a écrit :
Jorge Godoy:
Rene Pijlman:
my app was surprised by an
httplib.InvalidURL since I hadn't noticed this could be raised by
robotparser (this is undocumented).
It isn't undocumented in my module. From 'pydoc httplib':
That's cheating: pydoc is reading the source :-)
Hello all, I am taking a class in scientific programming at the local
college. My problem is that the following difference produces round off
errors as the value of x increases. For x = 19 the diference goes to
zero.I understand the problem, but am curious as to whether their
exists a solution. I
It seems that WSGI support starts to flourish is there some document or
a web site that tracks what's out there, some place to pick and choose
WSGI components?
--
http://mail.python.org/mailman/listinfo/python-list
Because you wrote curentText - note the missing t.
:)
You mean the missing 'r'
:)
--
http://mail.python.org/mailman/listinfo/python-list
[EMAIL PROTECTED] wrote:
hi,
This seems like a difficult question to answer through testing, so I'm
hoping that someone will just know... Suppose I have the following
generator, g:
def f()
i = 0
while True:
yield i
i += 1
g=f()
If I pass g around to
Whoops I forgot to list the reference.
Also, I just finished reading the old thread, so I see some
damage-control may be needed.
On Sat, 4 Mar 2006 11:52:59 -0600
Terry Hancock [EMAIL PROTECTED] wrote:
[1]
http://news.hping.org/comp.lang.python.archive/28916.html
And more specifically, I'm
On Mar 4, 2006, at 5:55 AM, Dennis Lee Bieber wrote:
On Fri, 3 Mar 2006 22:05:19 -0500, David Treadwell
[EMAIL PROTECTED] declaimed the following in
comp.lang.python:
My ability to think of data structures was stunted BECAUSE of
Fortran and BASIC. It's very difficult for me to give up my
use python
use ADSL
use windows XP
i want to record the time when i get on the internet and off the
internet
into a txt file
HOW?
--
http://mail.python.org/mailman/listinfo/python-list
For one of my grad school classes, I'm writing a paper on Dynamic
Languages. What a wonderfully vague topic (but at least it'll let me
write about Python).
Anyway, I want to talk about things like typing disciplines (weak,
strong, etc.),class vs. prototype, JIT technologies in dynamic
Hi,
Is their a colourized editor/shell that allows you to cut and paste the
colourized text?
Idle, SPE, Eclipse, and pythonwin all seem to nicely colourize both
command line input as well as editor windows but when I cut and paste
(in this case, into OpenOffice Writer), even the paste-special
On 4 Mar 2006 10:14:56 -0800
[EMAIL PROTECTED] wrote:
Since this is a container that needs to be immutable,
like a tuple, why not just inherit from tuple? You'll
need to override the __new__ method, rather than the
__init__, since tuples are immutable:
class a(tuple):
def __new__(cls,
Your file looks like a list of IP adresses. You can use the urllib and urllib2 modules to parse IP adresses.import urllib2for line in open(fileName.txt): addr, port = urllib2.splitport(line)
print (port != None) and '' or portCyril
--
http://mail.python.org/mailman/listinfo/python-list
I guess we think a bit differently, and we think about different
problems. When I hear, immutable container, I think tuple. When I
hear, my own class that is an immutable container, I think, subclass
tuple, and probably override __new__ because otherwise tuple would be
good enough as is.
I'm
Terry Hancock [EMAIL PROTECTED] wrote:
...
I also am not trying to alter the Python language. I am
trying to figure out how to most easily fix __setattr__ etc
to act immutably, *using* the existing features.
I can already do what I want with some 25-30 lines of code
repeated each time I
[EMAIL PROTECTED] wrote:
use python
use ADSL
use windows XP
i want to record the time when i get on the internet and off the
internet
into a txt file
HOW?
http://en.wikipedia.org/wiki/Water_clock
HTH
Gerard
--
http://mail.python.org/mailman/listinfo/python-list
On Sat, 4 Mar 2006 14:23:10 -0500
David Treadwell [EMAIL PROTECTED] wrote:
On Mar 4, 2006, at 5:55 AM, Dennis Lee Bieber wrote:
On Fri, 3 Mar 2006 22:05:19 -0500, David Treadwell
[EMAIL PROTECTED] declaimed the following
in comp.lang.python:
3. I demand a general-purpose toolkit, not a
Rene Pijlman wrote:
Steven D'Aprano:
ExpectedErrors = (URLError, IOError)
ErrorsThatCantHappen =
try:
process_things()
except ExpectedErrors:
recover_from_error_gracefully()
except ErrorsThatCantHappen:
print Congratulations! You have found a program bug!
print For a $327.68
They have used a lot of time and money to find bugs in Python too:
http://www.theregister.co.uk/2006/03/03/open_source_safety_report/print.html
0.32 defects per 1,000 lines of code in LAMP, it says.
I hope they will show such Python bugs, so Python developers can try to
remove them. From the
James Stroud [EMAIL PROTECTED] wrote:
Reraise = (LookupError, ArithmeticError, AssertionError) # And then some
try:
process_things()
except Reraise:
raise
except:
log_error()
Why catch an error only to re-raise it?
To avoid the following handler[s] -- a pretty
Tuvas [EMAIL PROTECTED] writes:
I have made and recently posted a libary I made to do Modular
Arithmetic and Prime numbers on my website at
http://www.geocities.com/brp13/Python/index.html . I am currently in a
crypotology class, and am working on building a RSA public key
cryptology system
Christian Stapfer [EMAIL PROTECTED] writes:
I guess it means the following:
Terminating exceptions are exceptions that
terminate the *thrower* of the exception.
Are you sure? I didn't read it that way. I'm not aware of there ever
having been a detailed proposal for resumable exceptions in
sam [EMAIL PROTECTED] writes:
Hello all, I am taking a class in scientific programming at the local
college. My problem is that the following difference produces round off
errors as the value of x increases. For x = 19 the diference goes to
zero.I understand the problem, but am curious as to
James Stroud [EMAIL PROTECTED] writes:
try:
process_things()
except Reraise:
raise
except:
log_error()
Why catch an error only to re-raise it?
This falls under http://c2.com/cgi/wiki?YouReallyArentGonnaNeedThis
No, without the reraise, the bare except: clause would
Rene Pijlman wrote:
James Stroud:
Which suggests that try: except HTTPException: will be specific enough
as a catchall for this module.
The following, then, should catch everything you mentioned except the
socket timeout:
Your conclusion may be (almost) right in this case. I just don't
Cyril Bazin wrote:
Your file looks like a list of IP adresses.
You can use the urllib and urllib2 modules to parse IP adresses.
import urllib2
for line in open(fileName.txt):
addr, port = urllib2.splitport(line)
print (port != None) and '' or port
Is this what you want to happen
On Mar 4, 2006, at 4:33 PM, Paul Rubin wrote:
sam [EMAIL PROTECTED] writes:
Hello all, I am taking a class in scientific programming at the local
college. My problem is that the following difference produces
round off
errors as the value of x increases. For x = 19 the diference goes to
I'm doing something a little wierd in one of my projects. I'm
generating a C source file based on information extracted from python's
header files. Although I can just generate the file and check the
result into source control, I'd rather have the file generated during
the install process
Jay Parlar wrote:
Anyway, I want to talk about things like typing disciplines (weak,
strong, etc.),class vs. prototype, JIT technologies in dynamic
languages, interactive interpreters, etc.
There are a few classic papers on a number of these topics, but I'll
leave it to the papers mentioned
James Stroud [EMAIL PROTECTED] writes:
approach. Basically this is reverse engineering the interface from the
source at the time of writing the app.
This is using the source as documentation, there is no law against
that.
That's completely bogus. Undocumented interfaces in the library
Ok, ok, there was a mistake in the code. (Of course, it was done on prupose in order to verify if everybody is aware ;-)I don't know why it is preferable to compare an object to the object None using is not.
== is, IMHO, more simple. Simple is better than complex. So I use ==. The correct program
I think you're getting caught by the classic and/or trap in Python,
trying to avoid using a simple if statement.
What do you mean by the classic and/or trap? Can you give an example
please?
Petr Jakes
--
http://mail.python.org/mailman/listinfo/python-list
Hello All,
I am trying to integrate the ftpclient (in ftplib) with an application that
has been written I C/C++.
I am able to delete,send change working directories etc. When I receive data
back from the server i.e. Retrieve files, get a directory listing) I want to
pass a callback function to the
Okay, I don't know if your farmiliar with the miller-rabin primality
test, but it's what's called a probabalistic test. Meaning that trying
it out once can give fake results. For instance, if you use the number
31 to test if 561 is prime, you will see the results say that it isn't.
Mathematically,
Paul Rubin wrote:
James Stroud [EMAIL PROTECTED] writes:
approach. Basically this is reverse engineering the interface from the
source at the time of writing the app.
This is using the source as documentation, there is no law against
that.
That's completely bogus. Undocumented interfaces
[EMAIL PROTECTED] wrote:
I'm doing something a little wierd in one of my projects. I'm
generating a C source file based on information extracted from python's
header files. Although I can just generate the file and check the
result into source control, I'd rather have the file generated
James Stroud [EMAIL PROTECTED] writes:
My suggestion was to use some common sense about the source code and
apply it.
The common sense to apply is that if the source code says one thing
and the documentation says another, then one of them is wrong and
should be updated. Usually it's the source
kpd wrote:
Hello,
I have written a C++ library that I've then wrapped with Pyrex.
Any suggestions to the best-in-class tool to create documentation for
the libraries?
I would love to document things in one spot (could be the code) and
generate html and PDF from there.
Doxygen
Okay, I'm working on devoloping a simple, cryptographically secure
number, from a range of numbers (As one might do for finding large
numbers, to test if they are prime). My function looks like this:
def cran_rand(min,max):
if(minmax):
x=max
max=min
min=x
I'm trying to write a function that takes an arbitrary object and
method.
The function applies the method to the object (and some other stuff).
I get error Test instance has no attribute 'method'
How can I make this work?
def ObjApply (object,method):
object.method ()
class Test:
swisscheese wrote:
I'm trying to write a function that takes an arbitrary object and
method.
The function applies the method to the object (and some other stuff).
I get error Test instance has no attribute 'method'
How can I make this work?
def ObjApply (object,method):
You don't need to pass the object along with the method. The method is
bound to the object. Simply call the method by itself:
def ObjApply(method):
method()
class Test:
def test1 (self): print Hello
def test2 (self):
ObjApply(self.test1)
ta = Test ()
Cyril Bazin wrote:
Ok, ok, there was a mistake in the code.
(Of course, it was done on prupose in order to verify if everybody is
aware ;-)
I don't know why it is preferable to compare an object to the object
None using is not.
== is, IMHO, more simple. Simple is better than complex.. So I
Petr Jakes wrote:
I think you're getting caught by the classic and/or trap in Python,
trying to avoid using a simple if statement.
What do you mean by the classic and/or trap? Can you give an example
please?
Sure, see my subsequent reply to Cyril, elsewhere in this thread.
(In summary,
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