Hello,
> There is no package needed to read or write the new open document files.
> The files are merely a jar archive containing XML files. You can open
> and update them using jar as a subprocess and manipulate the XML files
> using your favorite XML libraries DOM/SAX/XPath/Etree/etc.
thanks f
Hi,
i search for a possibility to access OpenOffoce SpreadSheets from Python
with a reasonably new version of Python.
Can anybody point me to a package that can do this?
Best regards,
Torsten.
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Hello,
thanks a lot for your hint, it works fine.
>> I get an error for "a = Abc(4, 5)", seems the parameters are
>> forwarded to array's __init__ as they are.
>
> No, with CPython they're forwarded to __new__.
Not sure if i understand this correctly, if i derive from other
classes (like wxpyth
Hello,
i try to derive a class from array.array:
import array
class Abc(array.array):
def __init__(self, a, b):
array.array.__init__(self, 'B')
self.a = a
self.b = b
a = Abc(4, 5)
print a
print a.a
I get an error for "a = Abc(4, 5)", seems the parameters are
forw
Hi,
i'd like to test if an input string starts with a python expression
and also where that expression ends. An example:
a_func(3*7, '''abc''') +5 pls some more
The first part until (inclusive) the 5 should be found as an expression
and the length of that string should also be detected.
Backg
Hi,
sorry for posting in german before, that was a mistake.
I'd like to use a nested structure in memory that consists
of dict()s and list()s, list entries can be dict()s, other list()s,
dict entries can be list()s or other dict()s.
The lists and dicts can also contain int, float, string, ...
B
Hallo,
ich möchte im Speicher eine verschachtelte Struktur aufbauen in der
dict()s und list()s verwendet werden und tief ineinander verschachtelt sind.
D.h. mehrere lists und dicts können jeweils wieder lists und dicts
enthalten.
Ich möchte als Einträge hauptsächlich int, float und string verwen
Hello,
a = [1, 2, 3, 4, 5, 6]
for i, x in enumerate(a):
if x == 3:
a.pop(i)
continue
if x == 4:
a.push(88)
print "i", i, "x", x
I'd like to iterate over a list and change that list while iterating.
I'd still like to work on all items in that list, which is n
Hi,
in a python C module i may need to create a Thread to do some background
observations / calculations.
Are there any problems with Python doing something like this?
Is there some special support on sharing data?
I guess i can't call any Python functions from the thread, correct?
Thanks fo
Hi,
i want to write a Python module that interfaces a DLL that we use in the
office to do some measurement.
So i'd like to write a python module in C (which i did before some times).
But i'm not sure how i can create a module in a way that i can later do:
import measurement
import measurement.
Hi,
how is the rule in Python, if i pass objects to a function, when is this
done by reference and when is it by value?
def f1(a):
a = 7
b = 3
f1(b)
print b
=> 3
Integers are obviously passed by value, lists and dicts by reference.
Is there a general rule? Some common formulation?
Thank
Hello,
>> Basically, this here works but gives a warning:
>> RuntimeWarning: Parent module 'ext_abc' not found while handling
>> absolute import
>
>
>> here = os.path.abspath('.')
>
> (Unrelated to the main question, but you probably want to use
> os.path.dirname(os.path.abspath(__file__)) inst
Hi,
i try to write a plugin system that i want to use to let users extend
a module that i write.
Within the module there is an extension loader that loads an extension
module. This extension module should be able to import modules from
my system, which provides some extensions.
Basically, this
Hello James,
>> That way i'd have to structure the code like this:
>>
>> graphic/
>> __init__,py (GraphicObject)
>> square.py (Square)
>> circle.py (Circle)
>>
>> Does that make sense like this?
>
> This seems perfectly acceptable.
Thanks for that hint. Do you see a way that i could write i
Hi,
i have a question on how to structure a package best, would be great if
anybody could give me some hint on this:
Assuming i have a base class GraphicObject and derived from that some
classes like Square, Circle, ...
It looks natural to me to write in a code that uses the package:
import gra
Hi,
in a package i use these files:
module (dir)
__init__.py
submodule
__init__.py
qwe.py
qwe.py defines a class that derives from a class defined in submodule (and by
that in submodule/__init__.py.
Is it possible somehow to write in qwe.py to import submodule (though
__init__.py
Hi,
i found some examples when googling for the subject but nothing really
matched.
Is there a standard module available that lets me parse a syntax like "C"
with numbers, operators, braces, variables and function calls?
I'd like to use this to parse an own kind of configuration language
and pre
>> I wonder how i can make AClass() known in that package.
>>
>
> Why don't you put the contents of smod1.py in mod/smod1/__init__.py?
> It'll work this way.
Of course, thanks for that hint.
Best regards,
Torsten.
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Hi,
in a package i'd like to have a structure like this:
Files end with ".py", others are directories:
mod
__init__.py # sets __all__ = ['smod1']
smod1.py # contains AClass()
smod1
__init__.py # sets __all__ = ['abc', 'def']
abc.py
def.py
So i can now do:
i
Hi,
> If i call it without any parameters i get:
>
> opts {'verb': 'store_false'}
> args []
If i call it with parameter -v i get:
./script.py -v
opts {'verb': True}
args []
I wonder what's wrong here.
Best regards,
Torsten.
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Hi,
i use the module optparse to parse the command line:
--example
#! /usr/bin/python
import optparse
parser = optparse.OptionParser()
parser.add_option("-v", "--verbose",
dest = 'verb',
help = 'be loud',
action = 'store_true',
Hello,
> This way __new__ is not called, if i remove __init__ then
> there are too many parameters to __new__, if i add a parameter
> to __new__ then it says that __new__ does not take arguments.
I just found an article that describes it better, this example works:
class C2(object):
def __ne
Hi,
i have some questions related to new style classes, they look
quite useful but i wonder if somebody can give me an example
on constructors using __new__ and on using __init__ ?
I just see that when using it i can't give parameters to __new__
and when i additionally define __init__ then __new_
Hi,
in an extension module i'd like to create a very large PyString.
As the string is very large i'd first like to create the string
and let Python allocate the space for it and then fill it from
my code.
But the only interface that i can find in Python/stringobject.h
is:
PyAPI_FUNC(PyObject *)
Hi,
is there some description available to overwrite the import
hook? By googling i found out so far that i need to overwrite
__builtins__.__import__ with something else.
Can i also do this with a C function that is provided when
using an embedded python interpreter? So my own C program
provide
Hi,
i write an extension module in C at the moment. This
module does some work on some own data types that
consist of some values.
The functions that can change the data are written in C.
The question came up if this is by itself thread safe,
if some two or more threads try to change these data
Hi,
i write an extension module in C at the moment.
I want to define some constants (integer mainly,
but maybe also some strings).
How do i do that best within this extension module
in C? Do i supply them as RO attributes?
What's the best way for it?
Thanks for hints,
Torsten.
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Hi,
when i write an extension module in C and return a Py_Object*
that i've built with Py_BuildValue, do i need to use Py_INCREF
on that before i return it to python from my extension module
or not?
Thanks for hints,
Torsten.
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Hi,
thank you all for your explanations.
That's really great and helps me a lot.
Thanks,
Torsten.
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Hi,
> Could you give us a more concrete use case? My suspicion is that
> anything complicated enough to be passed to a method to be modified will
> probably be more than a simple int, float, str or tuple... In which
> case, it will probably have methods to allow you to update it...
yes, to be m
Hi,
thank you all for your explanations.
I still wonder why a concept like "references" was not
implemented in Python. I think it is (even if small)
an overhead to wrap an object in a list or a dictionary.
Isn't it possible to extend Python in a way to use
real references? Or isn't that regard
Hi,
i'd like to pass a reference or a pointer to an object
to a function. The function should then change the
object and the changes should be visible in the calling
function.
In perl this would be something like:
sub func {
$ref = shift;
$$ref += 123; # change
}
$a = 1;
func(\$a);
is so
Hallo,
ich mÃchte eine Funktion schreiben, der ich eine Referenz
auf einen String Ãbergeben kann und die dann einige Ãnderungen
am String vornimmt.
In Perl wÃrde ich also ein \$string Ãbergeben und in der Funktion
auf $$string zugreifen.
Geht sowas auch in Python?
Ich habe von "global" gelesen,
Hi,
along with my distribution SuSE 9.1 came python 2.3.3.
I'd like to update to 2.4 now, is this an easy thing to do
or will lots of installed modules refuse to work then?
Is there an easy way to find out what i need to update?
Thanks for any hints,
Torsten.
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Hi,
sorry for being unclear and thanks for your answers.
Yes, i'd like to use a flat-file database AND access rights.
One way i thought of would be to handle the access rights
in the script that i write. But to let some other module
handle it would also be great. If for example i could embed
so
Hi,
i'd like to write a script that makes use of a database.
It would be great if the database would store all its data
in a file, that would be great for data exchange.
It would also be great if i could use SQL, as i have some
experience in that.
Also, i NEED access rights to certain parts of
Hi Adal,
can you send me your mail address? I think the one in your
posting is a spam stopper.
Cheers,
Torsten.
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Hi,
thank you very much for that detailled description.
I will try to get as far as i can with this information and
get back to you if i have any questions.
Thanks a lot,
Torsten.
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Hi,
> Do a group-google search for *tkinter table*. That shows up quite a few
> hits.
thanks for that hint, but nearly every hit shows the Table of contents
for Tkinter", which is not what i search for.
My question here is rather in detail about Tkinters Table and if it can
show resizable column
Hi,
i'd like to build an executable file that is linked with
a python library and executes a script via PyRun_SimpleString
or similar functions.
Is there a static library of python available, so the users
don't need to install python?
What about DLL modules, do i just need to compile them
as a
Hi,
i want to write an application where i need a Table to
display some values.
The table should display a list of objects, so to say,
a column for each attribute of the object.
I'd also like the user to be able to change the width
of each column, like in Excel.
I'd prefer to use Tkinter, but i
Hi David,
thanks for the explanation. That is very helpful to me.
Best regards,
Torsten.
David Bolen wrote:
> Torsten Mohr <[EMAIL PROTECTED]> writes:
>
>> i tried to find the file and line in the C sources of python
>> where the command "import" is im
Hi,
i tried to find the file and line in the C sources of python
where the command "import" is implemented. Can anybody give
me some hint on this?
Thanks,
Torsten.
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