Nicola Musatti a écrit :
On Feb 22, 9:03 am, Bruno Desthuilliers bruno.
[EMAIL PROTECTED] wrote:
Nicola Musatti a écrit :
[...]
So, yes, your big company is
likely to be safer with newbie C++ programmers than with Python newbie
programmers.
Sorry but I don't buy your arguments.
I
Diez B. Roggisch a écrit :
It's also some kind of a Rube Goldberg thingie...
http://en.wikipedia.org/wiki/Rube_Goldberg_machine
If you're into web applications, better to have a look at Pylons or
Django IMHO.
You are entitled to your opinion, but calling Zope a
Rube-Goldberg-machine is
Allen Peloquin a écrit :
I have a personal project that has an elegant solution that requires
both true multiple inheritance of classes (which pretty much limits my
language choices to C++ and Python) and type-based function
overloading.
Now, while this makes it sound like I have to resign
Doug Morse a écrit :
Hi,
My apologies for troubling for what is probably an easy question... it's just
that can't seem to find an answer to this anywhere (Googling, pydocs, etc.)...
I have a class method, MyClass.foo(), that takes keyword arguments. For
example, I can say:
x =
[EMAIL PROTECTED] a écrit :
My parser has found an expression of the form CONSTANT_INTEGER
OPERATOR CONSTANT_INTEGER. I want to fold this into a single
CONSTANT_INTEGER.
The OPERATOR token has an intValue attribute, '+' == 0, '-'== 1, etc.
In C I'd put functions Add, Subtract, ... into an
Jeff Schwab a écrit :
[EMAIL PROTECTED] wrote:
What you can't do (that I really miss) is have a tree of assign-and-test
expressions:
import re
pat = re.compile('some pattern')
if m = pat.match(some_string):
do_something(m)
else if m =
Jeff Schwab a écrit :
(snip)
This is apparently section 1.9 of the Python Cookbook:
http://www.oreilly.com/catalog/pythoncook2/toc.html
Martelli suggests something similar to the thigamabob technique I use
(he calls it DataHolder). It's really more like the xmatch posted by
Paul Rubin.
Paddy a écrit :
On 21 Feb, 23:33, [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote:
What you can't do (that I really miss) is have a tree of assign-and-test
expressions:
import re
pat = re.compile('some pattern')
if m = pat.match(some_string):
do_something(m)
[EMAIL PROTECTED] a écrit :
Hi all,
I have some data with some categories, titles, subtitles, and a link
to their pdf and I need to join the title and the subtitle for every
file and divide them into their separate groups.
So the data comes in like this:
data = ['RULES',
js a écrit :
Hi,
Have you ever seen Beautiful Python code?
Zope? Django? Python standard lib? or else?
Please tell me what code you think it's stunning.
FormEncode has some very interesting parts IMHO.
--
http://mail.python.org/mailman/listinfo/python-list
Monica Leko a écrit :
Suppose you have some HTML forms which you would like to validate.
Every field can have different errors. For example, this are the
forms:
username
password
etc
And you want to validate them with some class.
This is what the FormEncode package is for.
--
?? a écrit :
Howdy everyone,
This is a big problem puzzles me for a long time. The core question is:
How to dynamically create methods on a class or an instance?
class Foo(object):
pass
def bar(self, arg):
print in bar : self == % - arg == %s % (self, str(arg))
def baaz(self,
[EMAIL PROTECTED] a écrit :
(snip)
That reminds me: Is there a generic 'relation' pattern/recipie, such
as finding a computer that's paired with multiple users, each of who
are paired with multiple computers, without maintaining dual-
associativity?
Yes : use a relational database.
--
Mike a écrit :
I seem to fall into this trap (maybe my Perl background) where I want
to simultaneously test a regular expression and then extract its match
groups in the same action.
For instance:
if (match = re.search('(\w+)\s*(\w+)', foo)):
field1 = match.group(1)
field2 =
Tro a écrit :
Hi, list.
I've got a simple asyncore-based server. However, I've modified the asyncore
module to allow me to watch functions as well as sockets. The modified
asyncore module is in a specific location in my project and is imported as
usual from my classes.
Now I'd like to
Guillermo a écrit :
Hello,
This is my first post here. I'm getting my feet wet with Python and I
need to know how can I check whether a variable is of type dictionary.
What makes you say you need to know this ? Except for a couple corner
cases, you usually don't need to care about this. If
[EMAIL PROTECTED] a écrit :
Hello
can u plz tell how to send and read msg from device(telit-863-GPS) and
the coding is in python.
if this can happen then plz send the source code to my mail account
You'll find relevant code and examples here:
Sam a écrit :
Hello
if type(a) is dict:
print a is a dictionnary!
class MyDict(dict):
pass
a = MyDict()
type(a) is dict
= False
--
http://mail.python.org/mailman/listinfo/python-list
Guillermo a écrit :
Wow, I think I'm gonna like this forum. Thank you all for the prompt
answers!
Welcome onboard !-)
What makes you say you need to know this ? Except for a couple corner
cases, you usually don't need to care about this. If you told us more
about the actual problem (instead
Jeffrey Seifried a écrit :
(snip)
if type(a)==type({}):
print 'a is a dictionary'
This instanciates a dict, call type() on it, and discard the dict -
which is useless since the dict type is a builtin. Also, when you want
to test identity, use an identity test.
if type(a) is dict:
[EMAIL PROTECTED] a écrit :
And white to play. What does exec( open( 'modA.py' ).read() ) do?
RTFM
--
http://mail.python.org/mailman/listinfo/python-list
Guillermo a écrit :
Mamma mia! My head just exploded. I've seen the light.
So you only need to ·want· to have a protocol? That's amazing... Far
beyond the claim that Python is easy. You define protocols in writing
basically! Even my grandma could have her own Python protocol.
Okay, so I
[EMAIL PROTECTED] a écrit :
Hi, dear Python Masters!
I wanna ask about the Python and PDF creating.
I have many photos, and I wanna make some presentation from these
photos, a thumbnail like document with one image per one page.
If I wanna make one document now I do this:
I execute a
Andrew Rekdal a écrit :
I am trying to bring functions to a class by inheritance... for instance in
layout_ext I have..
--- layout_ext.py-
class Layout()
def...some function that rely on css in Layout.py
It shouldn't, definitively. The Layout instance should have a
Hendrik van Rooyen a écrit :
Hi,
I am surprised that it took me so long to bloody my nose on this one.
It must be well known - and I would like to find out how well known.
So here is a CLOSED BOOK multiple choice question - no RTFM,
no playing at the interactive prompt:
Given the
Alex a écrit :
(sni)
First of all thanks all for answering!
I have some environment check and setup in the beginning of the code.
I would like to move it to the end of the script.
Why ? (if I may ask...)
But I want it to
execute first, so the script will exit if the environment is not
Dave Kuhlman a écrit :
Arnaud Delobelle wrote:
4. Both points above follow from the fact that foo.bar is really a
function call that returns a (potentially) new object: in fact what
really happens is something like
Arnaud and Imri, too -
No. foo.bar is *not* really a function/method
Mel a écrit :
(snip)
(What Diez said.) From what I've seen, f.bar creates a bound method
object by taking the unbound method Foo.bar and binding its first
parameter with f.
Nope. it's Foo.__dict__['bar'] (that is, the function bar defined in the
namespace of class Foo) that creates a
Erik Max Francis a écrit :
Dave Kuhlman wrote:
Basically, the above code is saying that foo.foobar is not the same as
getattr(foo, 'foobar').
Python promises that the behavior is the same. It does not promise that
the _objects_ will be the same, which is what `is` determines. That is,
jmDesktop a écrit :
Hi, I would like to start using Python, but am unsure where to begin.
I know how to look up a tutorial and learn the language, but not what
all technologies to use. I saw references to plain Python, Django,
and other things.
I want to use it for web building with
sam a écrit :
Some time ago (2004) there were talks about prototype-based languages
and Prothon emerged.
Can someone tell me why class-based OO is better that Prototype based,
For which definition of better ?-)
especially in scripting langage with dynamic types as Python is?
Here
sam a écrit :
Bruno Desthuilliers napisał(a):
Most of the arguments in favor of prototypes seems to come to, mainly:
1/ it lets you customize behaviour on a per-object base
2/ it removes the mental overhead of inheritance, classes etc
Point 1. is a non-problem in Python, since you can
john s. a écrit :
On Mar 24, 9:39 pm, Ryan Ginstrom [EMAIL PROTECTED] wrote:
On Behalf Of john s.
import os, sys, string, copy, getopt, linecache
from traceback import format_exception
#The file we read in...
fileHandle = /etc/passwd
srcFile = open(fileHandle,'r')
srcList =
Minor Gordon a écrit :
(snip otherwise intersting stuff)
Background: I'm in this to help write a story for Python and web
applications. Everyone likes to go on about Ruby on Rails, and as far as
I can tell there's nothing that approaches Rails in Python.
You may have missed Django and
sam a écrit :
Bruno Desthuilliers napisał(a):
In dynamically typed language when you create object A that is
inherited from another object B, than object A knows that B is his
predecessor. So
when you reference A.prop, then prop is looked in A first, then in B,
then in predecessors
Gabriel Rossetti a écrit :
Gabriel Rossetti wrote:
Hello,
I am using Partial Function Application in a class and I've come up
with a problem, when the method is called it tries to pass self to
the curried/partial function, but this should be the first argument in
reality, but since the
Tim Henderson a écrit :
Hello
I am writing an application that has a mysql back end and I have this
idea to simplify my life when accessing the database. The idea is to
wrap the all the functions dealing with a particular row in a
particular in a particular table inside a class. So if you
Thomas Dybdahl Ahle a écrit :
On Wed, 2008-03-26 at 23:04 +0100, Michał Bentkowski wrote:
Why does python create a reference here, not just copy the variable?
Python, like most other oo languages, will always make references for =,
unless you work on native types (numbers and strings).
Gabriel Rossetti a écrit :
Bruno Desthuilliers wrote:
Gabriel Rossetti a écrit :
(snip)
registerServiceAtomic = partial(__registerService, True)
registerServiceNonAtomic = partial(__registerService, False)
I should pass self when applying partial, but then I can't do that
since self
Justin Delegard a écrit :
So I am trying to pass an object's method call
I assume you mean to pass an object's method, since I don't get what
passing an object's method call could mean.
to a function that
requires a function pointer.
s/pointer/object/
There's nothing like a pointer in
[EMAIL PROTECTED] a écrit :
Hallo,
playing with the decorators from PEP 318 I found the elegant singleton
decorator.
def singleton(cls):
instances = {}
def getinstance():
if cls not in instances:
instances[cls] = cls()
return instances[cls]
Wilbert Berendsen a écrit :
If i do
import os
os.path.abspath(bla)
'/home/wilbert/bla'
it seems that just import os also makes available al os.path functions.
But is that always true?
Nope. Not all packages expose their sub-packages.
--
Gary Herron a écrit :
(snip)
One other word of warning. It is best to not use a variable named
string as Python has a builtin type of that name which would become
inaccessible if you redefine.
Good advice, except that the builtin string type is actually named
'str', not 'string' !-)
--
André a écrit :
On Mar 28, 6:39 am, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
On Mar 28, 1:58 am, Diez B. Roggisch [EMAIL PROTECTED] wrote:
(snip)
But to be honest: you are thinking much to far there - after all, it's
all *your* code, and inside one interpreter. A real isolation isn't
Duncan Booth a écrit :
[EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Surely an A isn't equal to every other object which just happens to
have the same attributes 'a' and 'b'?
And why not ?-)
I would have thoughts the tests want to be
something like:
class A:
def __eq__(self,other):
sam a écrit :
Steven D'Aprano napisał(a):
I can see that Python and Javascript inheritance model is almost the
same. Both languages are dynamically typed. And it seems that using
classes in Python makes some things more complicated then it is
necessary (eg functions, methods and lambdas are
[EMAIL PROTECTED] a écrit :
Hey guys
I haev this homework assignment due today
Isn't it a bit too late to worry about it then ?
--
http://mail.python.org/mailman/listinfo/python-list
sprad a écrit :
I'm a high school computer teacher, and I'm starting a series of
programming courses next year (disguised as game development classes
to capture more interest). The first year will be a gentle
introduction to programming, leading to two more years of advanced
topics.
I was
sprad a écrit :
On Apr 1, 11:41 am, mdomans [EMAIL PROTECTED] wrote:
Python needs no evangelizing but I can tell you that it is a powerfull
tool. I prefer to think that flash is rather visualization tool than
programing language, and java needs a lot of typing and a lot of
reading. On the
hdante a écrit :
On Apr 1, 5:40 pm, Aaron Watters [EMAIL PROTECTED] wrote:
I've been poking around the world of object-relational
mappers and it inspired me to coin a corellary to the
the famous quote on regular expressions:
You have objects and a database: that's 2 problems.
So: get an
Aaron Watters a écrit :
I've been poking around the world of object-relational
mappers and it inspired me to coin a corellary to the
the famous quote on regular expressions:
You have objects and a database: that's 2 problems.
So: get an object-relational mapper:
now you have 2**3 problems.
sam a écrit :
Bruno Desthuilliers napisał(a):
Sam, seriously, why don't start with *learning* about Python's object
model ? Seriously ? Not that it's perfect, not that you have to like it
Ok -- thank you for your time and your strong opinions about current
solutions.
Don't
Jan Claeys a écrit :
(snip)
I learned about pointers while learning Pascal (and later embedded
assembler) using Borland's tools.
Later I learned C (and even later C++), and I've always been wondering why
those languages were making simple things so complicated...
Similar pattern here :
sam a écrit :
[EMAIL PROTECTED] napisał(a):
So, while I often use Python's lambdas, the imposed limitations is ok
to me since I wouldn't use it for anything more complex.
Also - as a side note - while the syntax is a bit different, the
resulting object is an ordinary function.
And
[EMAIL PROTECTED] a écrit :
def s(c):return[]if c==[]else s([_ for _ in c[1:]if _c[0]])+[c[0]]
+s([_ for _ in c[1:]if _=c[0]])
Anyone else got some wonders...?
Nothing as bad, but:
sig=lambda m:'@'.join(['.'.join([w[::-1] for w in p.split('.')]) for p
in m.split('@')])
--
[EMAIL PROTECTED] a écrit :
On Apr 1, 11:45 am, Ed Leafe [EMAIL PROTECTED] wrote:
Assuming that people get nothing back by participating in a
community, yes, it would be curious. My experience, though, is that I
get a lot more out of it than I could ever contribute. IOW, it's a
great example
sam a écrit :
Bruno Desthuilliers napisał(a):
Ok, I'm going to be a bit harsh, but this time I'll assume it.
Sam, you started this thread by asking about prototype vs class based
minor syntactic points that, whether you like them or not (and
I think I will get back to this discussion
Marco Mariani a écrit :
Bruno Desthuilliers wrote:
sig=lambda m:'@'.join(['.'.join([w[::-1] for w in p.split('.')]) for p
in m.split('@')])
Pff... you call that a quicksort?
Nope, only somewhat obfuscated Python. And it seems it's at least
obfuscated enough for you to believe
Luis M. González a écrit :
I have come to the same conclusion.
ORMs make easy things easier, but difficult things impossible...
Not my experience with SQLAlchemy. Ok, I still not had an occasion to
test it against stored procedures, but when it comes to complex queries,
it did the trick so
[EMAIL PROTECTED] a écrit :
Does python install fairly easily for a non-root user?
I have an ssh login account onto a Linux system that currently
provides Python 2.4.3 and I'd really like to use some of the
improvements in Python 2.5.x.
So, if I download the Python-2.5.2.tgz file is it
Jarek Zgoda a écrit :
Bruno Desthuilliers napisał(a):
Now my own experience is that whenever I tried this approach for
anything non-trivial, I ended up building an ad-hoc,
informally-specified bug-ridden slow implementation of half of
SQLAlchemy. Which BTW is not strictly an ORM
Paul Rubin a écrit :
Brian Vanderburg II [EMAIL PROTECTED] writes:
I've checked out some ways to get this to work. I want to be able to
add a new function to an instance of an object.
Ugh. Avoid that if you can.
Why so ? OO is about objects, not classes, and adding methods on a
Peter Otten a écrit :
(snip)
Anyway, here is one more option to add too the zoo:
class A(object):
... def __init__(self, f, x):
... self._f = f
... self.x = x
... @property
... def f(self):
... return self._f.__get__(self)
... def __del__(self):
[EMAIL PROTECTED] a écrit :
(snip)
I think I agree with all of the positive, supporting posts about
Python. I would just like to add that Python (and PyGame) are open
source
And run on most common platforms AFAIK.
and so your students can download it at home and have fun
exploring it on
[EMAIL PROTECTED] a écrit :
Am I the only one that thinks this would be useful? :)
I'd really like to be able to use python 3.0's print statement in
2.x.
nitpick mode=pedantic
FWIW, the whole point is that in 3.0, print stop being a statement to
become a function...
/nitpick
--
[EMAIL PROTECTED] a écrit :
Hello, I was hoping to get some opinions on a subject. I've been
programming Python for almost two years now. Recently I learned Perl,
but frankly I'm not very comfortable with it. Now I want to move on
two either Java or C++, but I'm not sure which. Which one do
andrew cooke a écrit :
Hi,
This is my first attempt at new classes and dynamic python, so I am
probably doing something very stupid... After reading the how-to for
descriptors at http://users.rcn.com/python/download/Descriptor.htm I
decided I would make an object that returns attributes on
Hrvoje Niksic a écrit :
(snip)
As others explained, descriptors are called for descriptors found in
class attributes, not in ones in instance attributes.
(snip)
However, if you know what you're doing, you can simply customize your
class's __getattribute__ to do what *you* want for your
andrew cooke a écrit :
On Apr 15, 4:06 am, Bruno Desthuilliers bruno.
[EMAIL PROTECTED] wrote:
The canonical solution is to use a custom descriptor instead of a property:
(snip code)
i tried code very similar after reading the first replies and found
that it did not work as expected
Hrvoje Niksic a écrit :
Bruno Desthuilliers [EMAIL PROTECTED]
writes:
However, if you know what you're doing, you can simply customize your
class's __getattribute__ to do what *you* want for your objects.
op
But bear in mind that, beside possible unwanted side-effectn, you'll
get a non
Jumping Arne a écrit :
I'm going to try to write some imange manipulation code (scaling, reading
EXIF and IPTC info) and just want to ask if PIL is *THE* library to use?
I looked at http://www.pythonware.com/products/pil/ and noticed that the
latest version is from Dec 2006.
In my
erikcw a écrit :
Hi,
I'm working on a web application where each user will be creating
several projects in there account, each with 1,000-50,000 objects.
Each object will consist of a unique name, an id, and some meta data.
The number of objects will grow and shrink as the user works with
[EMAIL PROTECTED] a écrit :
(snip - already answered)
def fact(n):
total = 0
n = int(n)
while n 0:
total *= n
n -=1
return total
You may be interested in a very different way to get the same result:
from operator import mul
def
andrew cooke a écrit :
bruno:
Ho, and yes : one day, you'll get why it's such a good thing to unite
functions and methods !-)
me:
PS Is there anywhere that explains why Decorators (in the context of
functions/methods) are so good? I've read lots of things saying they
are good, but no
[EMAIL PROTECTED] a écrit :
On Apr 17, 12:34 pm, Michael Torrie [EMAIL PROTECTED] wrote:
Another thing to consider is that referencing a member of a class or
instance already *is* a dictionary lookup. It's how python works. Thus
dictionaries are optimized to be fast. Since strings are
[EMAIL PROTECTED] a écrit :
so I’m trying to create a class that inherits from str, but I want to
run some code on the value on object init. this is what I have:
Others already gave you the technical solution (use __new__, not
__init__). A couple remarks still:
1/
class Path(str):
globalrev a écrit :
in C?? java etc there is usually:
procedure 1
procedure 2
procedure 3
main {
procedure 1
procedure 2
procedure 3
}
i dont get the mainloop() in python.
The 'main' function (resp. method) in C and Java has nothing to do with
a mainloop - it's just the program
Wilbert Berendsen a écrit :
Hi, is it possible to manipulate class attributes from within a decorator
while the class is being defined?
I want to register methods with some additional values in a class attribute.
But I can't get a decorator to change a class attribute while the class is
Guillermo a écrit :
Hi there,
How can I turn a string into a callable object/function?
Depends on what's in your string.
I have a = 'len', and I want to do: if callable(eval(a)): print
callable, but that doesn't quite work the way I want. :)
Works here:
Python 2.5.1 (r251:54863, May 2
hdante a écrit :
Summarizing the discussion (and giving my opinions), here's an
algorithm to find out what language you'll leard next:
1. If you just want to learn another language, with no other
essential concern, learn Ruby.
2. If you want to learn another language to design medium to
GD a écrit :
Please remove ability to multiple inheritance in Python 3000.
Please dont.
Multiple inheritance is bad for design, rarely used and contains many
problems for usual users.
Don't blame the tool for your unability to use it properly.
Every program can be designed only with
azrael a écrit :
Hy guys,
A friend of mine i a proud PERL developer which always keeps making
jokes on python's cost.
s/proud/stupid/
Please give me any arguments to cut him down about his commnets
like :keep programing i python. maybe, one day, you will be able to
program in VisualBasic
Carl Banks a écrit :
On Apr 22, 10:36 am, George Sakkis [EMAIL PROTECTED] wrote:
On Apr 22, 10:22 am, Carl Banks [EMAIL PROTECTED] wrote:
Java (for example) allows a class to share behavior with only one
other class, and that *severely* limits the opportunities to minimize
redundancy.
Not
barbaros a écrit :
Hello everybody,
I am building a code for surface meshes (triangulations for instance).
I need to implement Body objects (bodies can be points, segments,
triangles and so on), then a Mesh will be a collection of bodies,
together with their neighbourhood relations.
I also need
kdwyer a écrit :
On Apr 23, 12:16 pm, Simon Strobl [EMAIL PROTECTED] wrote:
(snip)
#!/usr/bin/python
import sys
frqlist = open('my_frqlist.txt', 'r')
(snip)
frq = {}
for line in frqlist:
line = line.rstrip()
frequency, word = line.split('|')
frq[word] = int(frequency)
(snip)
Andrew Lee a écrit :
(snip)
as a rule of thumb .. if you are using isinstance in a class to
determine what class a parameter is ... you have broken the OO contract.
Nope.
Remember, every class ought to have a well defined internal state and a
well defined interface to its state.
I don't
Scott SA a écrit :
Hi,
I'm using the @classemethod decorator for some convenience methods
and for some reason, either mental block or otherwise, can't seem to
figure out how to elegantly detect if the call is from an instance or
not.
Well, the point is that a classmethod *always* receive the
Torsten Bronger a écrit :
Hallöchen!
[EMAIL PROTECTED] writes:
On 23 avr, 19:39, [EMAIL PROTECTED] [EMAIL PROTECTED]
wrote:
Are there any completely free developent tools for python scripts
like IDLE. I have used IDLE , but I want to try out others
also. I saw stuff like PyCrust, but I
barbaros a écrit :
On Apr 23, 10:48 am, Bruno Desthuilliers bruno.
[EMAIL PROTECTED] wrote:
My question is: can it be done using inheritance ?
Technically, yes:
class OrientedBody(Body):
def __init__(self, orient=1):
Body.__init__(self)
self.orient = 1
Now if it's the right
Paul McNett a écrit :
def avg(*args):
return sum(args) / len(args)
There are some dangers (at least two glaring ones) with this code,
though, which I leave as an exercise for the reader.
try:
avg(toto, 42)
except TypeError, e:
print this is the first one : %s % e
try:
avg()
except
Torsten Bronger a écrit :
Hallöchen!
Bruno Desthuilliers writes:
[...]
and it ends multi-line strings at single quotes.
it chokes on unbalanced single quotes in triple-single-quoted
strings, and on unbalanced double-quotes in triple-double-quoted
strings, yes. Given that I never use triple
Brian Munroe a écrit :
Ok, so thanks everyone for the helpful hints. That *was* a typo on my
part (should've been super(B...) not super(A..), but I digress)
I'm building a public API. Along with the API I have a few custom
types that I'm expecting API users to extend, if they need too. If I
Lie a écrit :
On Apr 25, 2:12 am, [EMAIL PROTECTED]
[EMAIL PROTECTED] wrote:
(...)
FWIW, I'd personnaly write avg as taking a sequence - ie,
not using varargs - in which case calling it without arguments would a
TypeError (so BTW please s/Value/Type/ in my previous post).
The problem with
Mark Bryan Yu a écrit :
This set of codes works:
x = range(5)
x.reverse()
x
[4, 3, 2, 1, 0]
But this doesn't:
x = range(5).reverse()
print x
None
This works just as expected - at least for anyone having read the doc.
Please explain this behavior. range(5) returns a list from 0 to 4
[EMAIL PROTECTED] a écrit :
I'm parsing a simple file and given a line's keyword, would like to call
the equivalently named function.
There are 3 ways I can think to do this (other than a long if/elif
construct):
1. eval()
2. Convert my functions to methods and use getattr( myClass, method
Roy Smith a écrit :
(snip)
The reasoning goes along the lines of, reverse in place is an expensive
operation, so we don't want to make it too easy for people to do. At
least that's the gist of what I got out of the argument the many times it
has come up.
IIRC, it's more along the line of
Scott SA a écrit :
On 4/24/08, Bruno Desthuilliers ([EMAIL PROTECTED]) wrote:
It is a series of convenience methods, in this case I'm interacting
with a database via an ORM (object-relational model).
out of curiosity : which one ?
I'm rapidly becoming a django junkie^TM
(snip
n00m a écrit :
for listmember in mylist:
print listmember + .shp, eval(listmember)
eval and exec are almost always the wrong solution. The right solution
very often implies a dict or attribute lookup, either on custom dict or
on one of the available namespaces (globals(), locals(), or a
Magdoll a écrit :
Hi,
I know this is potentially off-topic, but because python is the
language I'm most comfortable with and I've previously had experiences
with plone, I'd as much advice as possible on this.
I want to host a site where people can register to become a user. They
should be
Peter Otten a écrit :
korean_dave wrote:
This allows me to see output:
---begin of try.py
print Hello World
--end of try.py
This DOESN'T though...
--begin of try2.py
def main():
return Hello
main() # add this
--end of try2.py
Can someone explain why???
Python doesn't call the main()
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