ttp://projects.amor.org/dejavu/wiki/UpgradeTo1.5
Documentation for 1.5:
http://projects.amor.org/docs/dejavu/1.5.0RC1/
Robert Brewer
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st reduce [len(dir(obj)) for obj in
all_obj].
2. Dynamic languages naturally more lang-maven oriented?
See http://osteele.com/archives/2004/11/ides
III. Programmable
=
1. Config and other "declarative" modes: No "XML sit-ups"
IV. Readable = Simple
===
affected, with no interface layer in-between to call list() for you. [I wonder how the PyPy folks feel about "iterators everywhere"...?]
Given my experience with Dejavu, I'd rather not see Python 3000 move to using iterators with abandon. IMO, it fixes a poor interface (iter) for 5%
pendency
tools" are distressingly common, and cost more than reinvention?
Robert Brewer
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SQL Server in SQLObject,
which both frameworks also use:
http://sqlobject.org/SQLObject.html#ms-sql-server
I use bare CherryPy with my own ORM, which handles SQL Server quite
well:
http://projects.amor.org/dejavu
Robert Brewer
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h + 1,
olddate.day)
will roll over any values which are out-of-bounds for their container.
Robert Brewer
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gt;>> print model.person
> >SELECT
> >person.*
> >FROM
> >[person] person
>
> The [bracket] syntax is unique to Microsoft.
> Everyone else, including Microsoft SQL Server,
> uses "double quotes" to protect special characters
> in identifiers.
E
t=Python
I'm pretty sure you should just email [EMAIL PROTECTED] with your
request.
Robert Brewer
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s on topics which I would not otherwise have read. ;)
Robert Brewer
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Benji York wrote:
> Robert Brewer wrote:
> > Actually, in this case we most definitely want to test
> > 2.4's "@" syntax. The decorator in question is an aliaser,
> > and therefore is one of the few
> > decorators which must be implemented differently
See the "expose" function at: http://www.cherrypy.org/file/trunk/cherrypy/__init__.py?rev=654
Robert Brewer
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2.4, or
3. Is there some better way to optionally test decorators, like using
eval, or
4. other...?
Robert Brewer
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cgi.FieldStorage, and override make_file to provide your
own file-like object that you can monitor as its "write" method is
called (see read_binary for the actual upload r/w code). The existing
FieldStorage class places the file size (gleaned from the Content-Length
request header) into sel
tly hoping for was that you'd read up on
CherryPy and discover it already does what you want. ;)
Robert Brewer
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P code)?
Do you *really* want to reinvent that wheel? ;) I'd suggest you start
with a threaded HTTP server from one of Python's many web frameworks.
Since I hack on CherryPy, I'll link you to its liberally-licensed
PooledThreadServer:
http://www.cherrypy.org/file/trunk/cherrypy/_cpht
the reference
server that comes with wsgiref (which is what they based their WSGI
server on). If there are any licensing or other issues keeping django
from using the CherryPy WSGI server, swing by
irc://irc.oftc.net/cherrypy and we'll get them worked out in a hurry.
Robert Brewer
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nfiguration entries are specifiable per-path, so
different portions of your site can use different encoding schemes.
Robert Brewer
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Paul Boddie wrote:
> "Robert Brewer" <[EMAIL PROTECTED]> wrote in message
> news:<[EMAIL PROTECTED]>...
> > Daniel Bickett wrote:
> > > I neglected to mention an important fact, and that is the
> > > fact that I am limited to Apache,
l a great option for you with Apache:
http://www.cherrypy.org/wiki/WSGIServers
http://www.cherrypy.org/wiki/BehindApache
Robert Brewer
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ve, so you can inspect program
variables as you like.
Start with that, and come back if you have any more questions. :)
Robert Brewer
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I overrode loadTestsFromName in a subclass, in order to be less
verbose in exactly the way I wanted, but the default works just as
well).
Robert Brewer
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,0k free,
> 27416k cached
>
> At this point, my computer becomes unusable.
>
> I'd like to know if I should buy some more memory (a few GB?)
> or if it is
> possible to make my code more memory efficient.
The first question I would ask is: what are you doing with "result", and
can the consumption of "result" be done iteratively?
Robert Brewer
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is.cx/publish/programming/charming_python_b12.html) and
generic functions (cf
http://dirtsimple.org/2004/11/generic-functions-have-landed.html).
Robert Brewer
System Architect
Amor Ministries
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> To me,
> instanceof seems like the infimum of all possible evils in this case.
>
n should I use?
Use datetime.datetime objects and subtract one from the other:
http://docs.python.org/lib/datetime-datetime.html
import datetime
time0 = datetime.datetime(2005, 5, 6, 23, 3, 44)
time1 = datetime.datetime(2005, 5, 7, 3, 3, 44)
td = time1 - time0
print 'time difference is %s seco
rking
> well enough to find it.
If by "didn't need TK" you mean "I don't want to have to learn Tk", try
Steve Ferg's EasyGUI:
http://www.ferg.org/easygui/
Robert Brewer
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'y for g',
> foo=lambda: return 'foo for g' )
Which are both prettier, until you actually try to use them:
>>> g( *args_from_somewhere, x='x for g', y='y for g', foo=lambda:
return 'foo for g' )
Traceback ( File
Bengt Richter wrote:
> The '::' unary suite operator should return an ordered dict
> subtype representing the bindings
Why ordered?
Robert Brewer
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His vitriol should at least warrant a temporary ban. No money need
change hands.
Top-posting-because-it-wasn't-worth-quoting,
Robert Brewer
MIS
Amor Ministries
[EMAIL PROTECTED]
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On
> Behalf
called Dejavu (http://www.aminus.org/rbre/python/) which
needs more use cases ;)
Or is there something special about webapps which you feel requires a
database module to be integrated with the app framework?
Robert Brewer
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st prize would be to have a datetime constructor that takes a
> DbiDate object as input, in the same way that mx does, but this does
> not seem to exist.
Try:
datetime.datetime.utcfromtimestamp(int(value))
I gave up on dbiDates completely, however, (since their range is so
limited) and use
se ;):
def is_string(item):
return isinstance(item, basestring)
def flatten(seq, atomic_test = is_string):
...
Perhaps atomic_test could allow a tuple or list of tests and combine
them...?
Robert Brewer
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under OS
> 10.3.8, if any
> of that makes a difference. Nothing there prevents hotshot
> from loading
> a file that's been made without the lineevents=1 argument.)
Sounds like you're hitting a known bug:
http://sourceforge.net/tracker/index.php?func=detail&aid=900092&group_id
=5470&atid=105470
Robert Brewer
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module
> (database.py
> file) in any PYTHONPATH directory.
>
> Are my observations correct? Is there something I ignored? Should
> this be posted somewhere else?
Short answer: don't use relative imports:
from some_package import database
http://docs.python.org/ref/import.html
Robert Brewer
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cess logic.
Now, getting into usability concerns (that framework and library authors tend
to obsess over ;) may be too advanced for your class at the moment. But that's
why recipes are recipes, not standard library modules: they're often biased
toward quick and dirty scripting, not usable, maintainable edifices.
Robert Brewer
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int-checking, which isn't available in
Python.
I ended up writing a daemon (running as root) which simply listens on a
local socket; when it receives any message, it HUPs spamd. Ugly but
effective.
Robert Brewer
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JRCondon wrote:
> Sean, if you are asking what I think you are asking (I don't
> think name hiding is the issue), you can use
>
> from module_name import *
Sshh! We're obviously going to great lengths to not tell him about
*.
;)
Robert Brewer
MIS
Amor Ministries
[EM
if anyone has recommendations for whose advice
to ignore first. ;) Detailed explanations of your choice would be much
appreciated, of course.
Robert Brewer
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Peter Maas wrote:
> Robert Brewer schrieb:
> >>I'm now confident that it is doable and keen on finding
> out. The usual
> >>question: what is the one and best way to do it? ;)
> >
> >
> > Python ASP (pywin32), but put as little code as possible in
Response)
%>
The only downside is that ASP expects a physical file for every URL, so
you'll either have lots of dumb copies of the stub, or a single
dispatcher (and the ugly URL's you wanted to avoid). With a little
planning, you can have the stubs auto-generated.
Database side: try them all and see which is best with your dataset. ;)
Robert Brewer
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]
base.create_special_property(C, DateColumn('start_date'))
Slightly off-topic: if you really want to make it pretty, add a custom
descriptor so you can write:
class C(A):
id = IntColumn(primaryKey=1,allowNull=0)
name = TextColumn(allowNull=0,size=50)
description = TextCo
e = os.path.normpath(os.path.dirname(sys.argv[0]))
Robert Brewer
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Peter Hansen wrote:
> Carl wrote:
> > What is the ultimate version control tool for Python if you
> > are working in a Windows environment?
>
> I never liked coupling the two together like that. Instead
> I use tools like TortoiseCVS or (now) TortoiseSVN with a
> Subversion repository. These t
excel" and no frills; both IE
and Firefox will use Excel to open it. Works wonderfully. Let me know if
you need more details.
Robert Brewer
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ruly non-recursive
implementation would probably exist outside of whatever class you've got
this method in, and would keep its own pointer to the current node as it
traversed the tree.
Hope that helps,
Robert Brewer
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hip.python.net/crew/theller/py2exe/).
Then use:
net start daemonsvc
net stop daemonsvc
Robert Brewer
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*my* projects. ;)
One of my goals for Dejavu* (my ORM) is to abstract persistence to the
point that you can easily test your actual, live dataset against many
potential storage mechanisms (i.e. multiple DB's, but also shelve,
etc.). I need to finish the migration tools, but it's well
t any function in any module.
The curse is that you can then import any function in any module. ;)
Robert Brewer
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ph/thread/20050104.014254.b2978a88.en.html#20050104
.014254.b2978a88
That should hold you until the sprint ;)
Robert Brewer
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Alex Martelli wrote:
>
> Robert Brewer <[EMAIL PROTECTED]> wrote:
>
> > Bah. Nothing teaches you a new language like having your
> job depend upon
> > it. People who study languages merely for "personal growth"
> learn 50% of
> > the syn
ur job depend upon
it. People who study languages merely for "personal growth" learn 50% of
the syntax and 1% of the concepts, and then fritter that learning away
on inconsequential newsgroups the world over.
Alex Z, keep using and learning Python. Let it change your brain.
Robert
h
> a feature, I just don't know about it?
The feature is called "pychecker", and, although it isn't included in
the standard distribution, it's readily available:
http://pychecker.sourceforge.net/
Robert Brewer
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ltiple connections i have no real
> testing environment, so any advice which one to use for different
> usecases would be nice.
If your "use cases" involve cross-platform development (i.e. Linux and
Windows), pypgsql seems to fit the bill nicely.
Robert Brewer
MIS
Amor Mi
lename with the schema, something
like:
"select * from %s.%s;" % (schema, tblName)
It's possible the trailing semicolon is important to close the
statement.
The next thing to check would be permissions.
Robert Brewer
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output? Error message?
Does your update affect the membership of the record in the keyset?
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/ado270/
htm/mdconkeysetcursors.asp
Why are you using keysets at all?
Robert Brewer
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pdate
> a web-page?
If the file is local:
open(filename, 'w').write(content)
If the file is remote and you need to upload it via ftp, check out the
ftplib module in the standard library, for starters.
Robert Brewer
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welcomes framework developers. New code for additional
Storage Managers, analysis tools, or other portions will be gladly
reviewed for inclusion in future releases. Drop me an email if you
feel so inclined.
Robert Brewer
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http://naeblis.cx/rtomayko/2005/01/20/getters-setters-fuxors
"...Many people coming to Python can't believe no one uses IDEs. The
automatic assumption is that Python is for old grey beards who are
comfortable with vi and Emacs and refuse to accept breakthroughs in
programming productivity like IDE
Leif K-Brooks wrote:
> Robert Brewer wrote:
> > Try svn://casadeamor.com/dejavu/trunk if you want a truly
> Pythonic query
> > syntax. Wait a couple of days, and I'll have version 1.3 ready and
> > online at http://www.aminus.org/rbre/python -- lots of changes from
e'
changes that dictionary while you are iterating over it. Try either:
[e for e in vars().keys()]
or
e = None
[e for e in vars()]
or the generator expression if you have Python 2.4.
Robert Brewer
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k? I'm not a Windows guy... :-)
Use ADO unless you need to support older versions of Windows. It'll be a
lot faster and cleaner than ODBC.
Robert Brewer
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ouple of days, and I'll have version 1.3 ready and
online at http://www.aminus.org/rbre/python -- lots of changes from
1.2.6 which is there now, but at least you can read old docs online now
without svn.
Robert Brewer
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implementation time. So why bother? That's a horrid trade off
> when there are so many other real gains to be had.
Especially since you can already do it explicitly with Raymond
Hettinger's cookbook recipe:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/277940
Robert Bre
ry when records are written to.
Just to clarify, you want shared-read until a write, at which point you
want to lock just the item being written? Or would page or table locking
be acceptable at that point?
Robert Brewer
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Brane wrote:
> can someone please give me some info regarding subject
http://sourceforge.net/projects/mysql-python
Ask a broad question...
Robert Brewer
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ib/module-os.path.html>.
I suspect you will also want to look at os.walk() eventually:
for root, dirs, files in os.walk(path):
for dir in dirs:
do_something_with(dir)
Robert Brewer
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Simon Wittber wrote:
> Is there a legitimate use for classic classes that I am not aware of?
As was pointed out to me when I asked on this list just a short while
ago ;) classic classes can be faster.
Robert Brewer
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filename = value.filename
except AttributeError:
filename = None
if filename:
# Store filename, filedata as a tuple.
self.requestParams[key] = (filename, value.value)
else:
for subValue in form.getlist(key):
self.requestParams[key] = su
Martin MOKREJŠ wrote:
> Robert Brewer wrote:
> > Martin MOKREJŠ wrote:
> >
> >> I have sets.Set() objects having up to 20E20 items,
> >>each is composed of up to 20 characters. Keeping
> >>them in memory on !GB machine put's me quickly into swap.
&g
one as a value. The items in a set are unique.
>
> How can I write them efficiently to disk?
got shelve*?
Robert Brewer
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* the "shelve" module in the standard library, that is.
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ng recvall would just duplicate that, I
think. But that's desirable IMO.
Robert Brewer
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.
So, you could write WSGI consumers of them, but they wouldn't be
WSGI-specific in my mind. If they were, they'd just add to the "several
systems" you were lamenting... ;)
Robert Brewer
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_getitem__(self, key)
def setdefaultvalue(self, value):
self._default = value
self._call_default = isinstance(value, ftypes)
...or:
def setdefaultvalue(self, value, call_callables=True):
self._default = value
self._call_default = callable(value) and call_callables
Robert Brewer
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of startup/shutdown functions
6. Registry of active user interfaces
I think the first three are all good candidates for a standard. If we
had a standard, thread-safe Application object, the rest could be
registerable plugins for that. You'd basically register callbacks for
app.startup an
_get__(self, obj, objtype=None):
if obj is None:
return self# Return whatever you like here
if self.fget is None:
raise AttributeError, "unreadable attribute"
return self.fget(obj)
That might be one way to get what you want.
Robert Brewer
MIS
Amor Ministries
[EMAIL
You can do this with lambdas with my LambdaDecompiler inside:
http://www.aminus.org/rbre/dejavu/codewalk.py
If you want to extend it to full functions, be my guest. ;)
There's also a commercial decompiler out there called "decompyle", and
they even have a web service. http://www.crazy-co
t;
> Thank you, and please make all answers simple enough to be understood
> by a highschool student and his father :) .
Even after all the IPO hype, the map integration, and the Suggest beta,
Google is STILL your friend:
http://www.google.com/search?q=windows+console+remain+open
In other
was just talking about @require decorators:
http://blog.ianbicking.org/already-under-our-noses.html
@require(int, int)
def gcd(a, b):
...
If we made a "checker" module for such things in the stdlib, we could
write most of that:
from checker import *
@args((list, itemsno
>>> from path import sys
Traceback (most recent call last):
File "", line 1, in ?
ImportError: No module named path
In your example ("from _mechanoid_Common import Common"), import can't
find any module named "_mechanoid_Common" in site-packages, PYTHONPATH,
or other known sources.
Robert Brewer
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. Ditto for closures. A more realistic example:
term = input("Enter the amount to add")
e = expr(x): x + term
...MUCH code passes, maybe even a new process or thread...
d = a + e(3)
Robert Brewer
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The big issue with leaving this question so generic is that the answers are
legion. So I'll just keep it short and make my own shameless plug: try Cation
for the Web interface and Dejavu for the data layer, both developed by yours
truly. ;) http://www.aminus.org/rbre/python or...
svn://c
bdas for (even if I have to
transform Python bytecode into another language to do it at the moment ;).
Robert Brewer
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ambdas.
That's been the only serious use case I've had for lambdas: a way to have an
Expression object, in effect. If we had a more rigorous syntax specifically for
first-class expressions, lambda could go away forever in my book.
Robert Brewer
MIS
Amor Ministries
[EMAIL PROTECTED]
#x27;function as expression' look like?
Or simply:
accepts_func( (f(a) + o(b) - o(c) for a, b, c) )
...but that would give whomever writes the parser a headache. ;)
Robert Brewer
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metaclass (or other solution)
working, then go back to __private names if you want. At the moment, it's
confusing the issue greatly.
But why don't you just dynamically set attributes (like 'mode') instead of
methods (like '_get_mode')? Will some of these be read-only?
Robert Brewer
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be to
immediately follow your API class definition with a call like:
from myframework import captools
class API(object):
def foo():
pass
captools.enable(API)
...the choice comes down IMO to what you think will be the most
usable/maintainable by those who follow you.
Rob
attach methods to instances of API,
then just do it in API.__init__():
class API(object):
def __init__(self, keyring):
for name, method in capabilities(keyring).iteritems():
setattr(self, name, method)
Can you show us some code? <:)
Robert Brewer
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DB-API wrappers running on Win2k, how about doing that
locally and then writing a quickie socket server which your linux client can
connect to?
Robert Brewer
MIS
Amor Ministries
[EMAIL PROTECTED]
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/* ob_size */
"method-wrapper", /* tp_name */
Robert Brewer
MIS
Amor Ministries
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Fredrik Lundh wrote:
> well, since I'm not in the ego-stroking business, what if I
> promise never to
> reply to posts by you, robert, and alex?
?? I'll take your replies anytime. You're a long way from all noise and
no signal. I'm happy to learn what I can from
answers, when not
> attacks, are often very insightful. If you find a
> good solution to this problem, please let me know.
Wait; you mean there *isn't* a technological solution to every social
issue? Bah. Guess I'll quit IT and go into marketing after all.
;)
Robert Brewer
MIS
Bengt Richter wrote:
> >>> m=type('',(),{})()
> >>> m.title = 'not so fast ;-)'
> >>> m.title
> 'not so fast ;-)'
Now THAT is a cool object trick. :)
FuManChu
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t."""
try:
return dict.__getitem__(self, key)
except KeyError:
return []
def iterchains(self):
"""C.iterchains() -> an iterator over the (key, chain) pairs of
C."""
return dict.iteritems(self)
...the one-liners flow effortlessly. ;)
Robert Brewer
MIS
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Chris Lasher wrote:
> That's odd that there's no built-in method to do this. It seems like
> it would be a common task. Is there any way to request a feature like
> this from the RE module keepers, whomever they may be?
The best way to request such a feature would be to write a patch. ;)
FuManCh
#x27;m naively guessing you've got a typo. Feel free to
correct me. ;)
>>> class struct(object):
... def __init__(self, **kwargs):
... self.__dict__.update(kwargs)
...
>>> var = "varA"
>>> obj = struct(**{str(var): "Hello&qu
James Stroud wrote:
> The thread "why not arrays" got me thinking. I would really
> like to inherit
> from a list so that I can add methods based on its contents,
> say if I filled
> it with a type of object and wanted to iterate over all
> objects. I have built
> a wrapper around a list like
red.
Dejavu welcomes your use and feedback as an application developer.
Dejavu also welcomes framework developers. New code for additional
Storage Managers, analysis tools, will be gladly reviewed for inclusion
in future releases. Drop me an email if you feel so inclined.
Robert Brewer
MIS
Am
cs.python.org/lib/built-in-funcs.html
Otherwise, you'll have to explain a bit more--that's my best guess as to
what your issue is.
Robert Brewer
MIS
Amor Ministries
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Terry Reedy wrote:
> "Petr Prikryl" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>
> >Summary: In my opinion, the C-like prefix
> >increment and decrement operators (++i and --i)
>
> You could propose to the author of Pychecker that he include,
> if possible, an option to check
v.1200 32 bit (Intel)]
on win32.
>>> import re
>>> s = "abbababbabbaaa"
>>> i[0] = -1
>>> def sub(match):
... i[0] += 1
... return str(i[0])
...
>>> re.sub("b", sub, s)
'a01a2a34a56aaa'
Robert Brewer
MIS
Amor Ministries
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; you only change to
server mode when you actually load a file from the server.
Numerous other buglets fixed over the weekend. Thanks for the feedback,
all!
Robert Brewer
MIS
Amor Ministries
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