Re: A replacement for lambda

I understand that there are a number of people who wish to remove lambda entirely from the language. Nevertheless, I find it a useful and powerful tool in actual development. Any replacement must support the following: *delayed evaluation*. I need a convenient (def is not always convenient) way o

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

On Saturday 30 July 2005 13:41, Peter Hansen wrote: > The last time I checked (as I recall), at least Wax and possibly Dabo > both either lagged well behind recent wxPython developments of provide > relatively limited support, leaving out a sizable and (to me) important > number of features from w

Re: Comparison of functions

On Sat, 30 Jul 2005 16:43:00 +, Adriano Varoli Piazza wrote: > If you want to treat numbers as strings, why not convert them before > sorting them? Because that changes the object and throws away information. Here is a list, containing one complex number converted to a string, and one stri

Re: [XML-SIG] xml-object mapping

On Thu, 2005-07-28 at 12:21 -0400, Tamas Hegedus wrote: > Hi! > > I am looking for an xml-object mapping tool ('XML Data Binding-design > time product') where I can define the mapping rules in 'binding files' > and the parser is generated automatically. > > Similar to the solution of Dave Kuhlm

Printing Docstrings Without Importing

I have a large project that is getting complex, and I would like to print the docstrings without importing the modules. The only Python utility I could find references is apparently defunct and hasn't been updated in 4 years. I don't care how spartan the output is - it could look exactly like pyth

Re: Wheel-reinvention with Python

On 7/30/05, Torsten Bronger <[EMAIL PROTECTED]> wrote: > You found a solution for you, which is a good thing. I don't want > to rule out to use Dabo myself. But in my institute I'd like to > present Python as a viable alternative to Delphi. In order to > convince people who are used to a homog

Re: Comparison of functions

On Sat, 30 Jul 2005 17:57:20 +, Adriano Varoli Piazza wrote: > Steven D'Aprano ha scritto: > >> Do you understand the difference between partial and total ordering, or >> weakly and strongly ordered? When you do understand them, come back and >> tell me again whether you still think lexicogra

Re: functions without parentheses

On Fri, 29 Jul 2005 20:54:42 +1000, Steven D'Aprano <[EMAIL PROTECTED]> wrote: >On Fri, 29 Jul 2005 06:37:52 +, Bengt Richter wrote: > >> I suggested in a previous thread that one could support such a syntax by >> supporting an invisible binary operator between two expressions, so that >> exam

Re: A replacement for lambda

Seth Nielson <[EMAIL PROTECTED]> writes: > Any replacement must support the following: *delayed evaluation*. > > I need a convenient (def is not always convenient) way of saying, > "don't do this now". That is why I use lambda. How's this: f{args} (curly braces instead of parens) is the same as f

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

Peter Hansen <[EMAIL PROTECTED]> writes: > The last time I checked (as I recall), at least Wax and possibly Dabo > both either lagged well behind recent wxPython developments of provide > relatively limited support, leaving out a sizable and (to me) > important number of features from what they wra

Re: Comparison of functions

Steven D'Aprano wrote: > Um, I didn't ask to compare complex numbers using comparison operators. I > asked to sort a list. And please don't tell me that that sorting is > implemented with comparison operators. That just means that the > implementation is confusing numeric ordering with sort order.

Re: Selection, picking with PyOpenGL?

Mike C. Fletcher wrote: > I think you're missing what's returned from the glRenderMode code (which > is non-standard OpenGL, to avoid the need for Python code using and > decoding structured pointers), from OpenGLContext: I was indeed. I was looking at the text description, which, like the Op

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

On 30 Jul 2005 12:06:43 -0700, Paul Rubin <"http://phr.cx"@nospam.invalid> wrote: > wxPython also depends on wxWidgets which lags behind GTK. Can you elaborate on that? It's been over a year since I last looked at GTK, but I do remember not being very impressed with how it looked on Windows and O

Re: showing help(M) when running module M standalone

Dan Sommers wrote: > On Sat, 30 Jul 2005 17:04:50 +0200, > Chris <[EMAIL PROTECTED]> wrote: > > >>hello, >>I have a small module which only contains some utility functions. when >>running this standalone I would like to show the module docs and each >>function docs, as if doing > > >> impo

Re: showing help(M) when running module M standalone

hello, thanks for all suggestions, if __name__ == '__main__': __name__ = 'MODULENAME' help(__name__) does actually work any even shows the modulename it should. chris -- http://mail.python.org/mailman/listinfo/python-list

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

Ed Leafe wrote: > There are also several classes in wxPython that Dabo has not wrapped, > primarily the lower-level drawing classes and some of the newer graphics > classes, mainly because they weren't needed for a database application > framework. However, if there's a need, we'll be glad to add

Re: rfc822 module bug?

On Sat, 2005-07-30 at 09:08 +, Nemesis wrote: > Hi all, > I found that the function parsedate_tz of the rfc822 module has a bug > (or at least I think so). > I found a usenet article (message-id: <[EMAIL PROTECTED]>) > that has this Date field: > > Date: Tue,26 Jul 2005 13:14:27 GMT +0200 My

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

On Saturday 30 July 2005 16:06, Jorge Godoy wrote: > If it is added, let us know.  I can't think of a better way to visualize > database reports in an easy and fast way.  Specially for BI. What specifically are you looking for? We are working on the report writing engine now, tying in ReportLab

Re: A replacement for lambda

On Fri, 29 Jul 2005 18:07:31 -0400, Mike Meyer <[EMAIL PROTECTED]> wrote: >I know, lambda bashing (and defending) in the group is one of the most >popular ways to avoid writing code. However, while staring at some Oz >code, I noticed a feature that would seem to make both groups happy - >if we can

Re: [path-PEP] Path inherits from basestring again

On Sat, 2005-07-30 at 08:01 -0600, Ivan Van Laningham wrote: > Tony Meyer wrote: > > > > >> (Those who are offended by sweeping generalisations should > > >> ignore this next bit) > > [...generalisation bit snipped...] > > > This is not only bullshit, it's elitist bullshit. "Windows users are > >

Re: A replacement for lambda

On Fri, 29 Jul 2005 18:07:31 -0400, Mike Meyer <[EMAIL PROTECTED]> wrote: >I know, lambda bashing (and defending) in the group is one of the most >popular ways to avoid writing code. However, while staring at some Oz >code, I noticed a feature that would seem to make both groups happy - >if we can

Re: functions without parentheses

On Sat, 30 Jul 2005 08:14:16 +0100, [EMAIL PROTECTED] (phil hunt) wrote: >On Fri, 29 Jul 2005 06:37:52 GMT, Bengt Richter <[EMAIL PROTECTED]> wrote: >> >>I suggested in a previous thread that one could support such a syntax by >>supporting an invisible binary operator between two expressions, > >

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

On Sat, 2005-07-30 at 12:06 -0700, Paul Rubin wrote: > Peter Hansen <[EMAIL PROTECTED]> writes: > > The last time I checked (as I recall), at least Wax and possibly Dabo > > both either lagged well behind recent wxPython developments of provide > > relatively limited support, leaving out a sizable

python SMTP server

Hi, i made a test with smtplib module a few days ago, for sending mails, and i was wondering if there's another module for running an SMTP server, so i could make a standalone script for sending mails without using an external SMTP server. I've been searching but i'm not sure if there are modules f

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

Ed Leafe wrote: > On Saturday 30 July 2005 16:06, Jorge Godoy wrote: > >> If it is added, let us know.  I can't think of a better way to visualize >> database reports in an easy and fast way.  Specially for BI. > > What specifically are you looking for? We are working on the report > writing e

Re: python SMTP server

On Sat, 2005-07-30 at 14:44 -0700, Fernando M. wrote: > Hi, > i made a test with smtplib module a few days ago, for sending mails, > and i was wondering if there's another module for running an SMTP > server, so i could make a standalone script for sending mails without > using an external SMTP ser

Re: Comparison of functions

Steven D'Aprano wrote: > Python already allows you to compare "this is not a number" with the float > 5.0. Mathematically, that is meaningless, but I would bet money that > 99.9% of programmers would demand that they should be able to sort the > list ["this is not a number", 5.0]. Do you think that

Re: A replacement for lambda

Paul Rubin wrote: > How's this: f{args} (curly braces instead of parens) is the same as > f(lambda: args). > > Examples: > > launch_thread{targetfunc(a,b,c)} > b = Button{callback=pressed()} # Button remembers callback() > sign_of_a = ternary{a < 0, -1, 1} I'd consider this an inte

Re: A replacement for lambda

Peter Hansen <[EMAIL PROTECTED]> writes: > > sign_of_a = ternary{a < 0, -1, 1} > > I'd consider this an interesting idea if it weren't for the fact that > (at least with the fonts I generally use) I can barely make out the > difference between the {} and the () above. Ok, how about an escaped

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

On Saturday 30 July 2005 17:44, Jorge Godoy wrote: > Bar and line graphics, mainly.  In an easy and portable way.  Something > that calculates the axis scales automatically, that allows users to change > some information, add legends, put values in specific points and all those > things that are c

Re: A replacement for lambda

On Fri, Jul 29, 2005 at 10:14:12PM -0700, Tim Roberts wrote: > C++ solves this exact problem quite reasonably by having a greedy > tokenizer. Thus, that would always be a left shift operator. To make it > less than and a function, insert a space: > < Incidentally, I read in an article by Bj

Re: PEP on path module for standard library

Bengt Richter wrote: > > > > Say, how about > > if Pathobject('gui://message_box/yn/continue > processing?').open().read().lower()!='y': > raise SystemExit, "Ok, really not continuing ;-)" > > An appropriate registered subclass for the given platform, returned when the > Patho

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

Ed Leafe wrote: > I'll defer this to my partner, Paul McNett. He's spearheading the > reporting > module for Dabo, and may know of some tools that are already out there > that could generate the image, which Dabo could then display. There are some out there. There's one implementation that is

Escaping certain characters

Hello, I'd like to encode the string that outputs: Hello World! to 'Hello\x0aWorld!', and the string that outputs: Hello\World! to 'Hello\\World!'. Obviously, I want to be able to reverse the process. I'm going to assume this has already been solved in Python.. But how? -- http://mail.pytho

Re: Escaping certain characters

Jan Danielsson wrote: > Hello, > > I'd like to encode the string that outputs: > > Hello > World! > > to 'Hello\x0aWorld!', and the string that outputs: > > Hello\World! > > to 'Hello\\World!'. > > Obviously, I want to be able to reverse the process. > > I'm going to assume this has already

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

Cliff Wells wrote: > > But how stable is GTK on systems such as Windows and OS/X? That has > been what has kept me from using it. Most GTK apps I've used on Windows > (including the venerable GIMP) are nowhere near as stable as their Linux > counterparts (although this may not be entirely the fa

Re: Comparison of functions

On Sat, 30 Jul 2005 23:37:04 +1000, Steven D'Aprano <[EMAIL PROTECTED]> wrote: >On Sat, 30 Jul 2005 14:20:50 +0200, tiissa wrote: > >> Steven D'Aprano wrote: >>> Playing around with comparisons of functions (don't ask), I discovered an >>> interesting bit of unintuitive behaviour: >>> >>a = l

Re: functions without parentheses

On Sat, 30 Jul 2005 18:42:59 GMT, [EMAIL PROTECTED] (Bengt Richter) wrote: > or > arr = (ArrayElementAggregator() > 11 12 13 > 21 22 23 > ) What was that again about every other computer language wanting to be Lisp? ;-) Regards, Dan -- Dan Sommers

Re: Escaping certain characters

Robert Kern wrote: [---] > In [3]: s.encode('string_escape') > Out[3]: 'Hello\\nWorld!' > > In [4]: Out[3].decode('string_escape') > Out[4]: 'Hello\nWorld!' > > Not *quite* what you asked for, but it ought to be close enough. That'll do just fine. Many thanks! -- http://mail.python.org/mailman/

Re: showing help(M) when running module M standalone

On Sat, 30 Jul 2005 22:02:49 +0200, Chris <[EMAIL PROTECTED]> wrote: > I tried that, problem is that __all__ containts strings... Oops. I should have looked before I lept. Sorry, Dan -- Dan Sommers -- http://mail.python.org/mailman/listinfo/python-list

Dabo in 30 seconds?

Ed Leafe wrote in response to the "Python vs. Access VBA" thread: > You might want to look at Dabo, which is a database application > framework for Python. In about 30 seconds you can create an application > that queries a database, displays the results, and allows for > editing/updating/

Re: showing help(M) when running module M standalone

On Sat, 30 Jul 2005 22:02:49 +0200, Chris <[EMAIL PROTECTED]> wrote: > I tried that, problem is that __all__ containts strings... Okay, that's twice I've lept before I looked. How about this: for a in __all__: print globals()[a].__doc__ HTH, Dan -- Dan Sommers

Re: Friend wants to learn python

I would recommend starting with www.freenetpages.co.uk/hp/alan.gauld . He has a particularly good way of communicating the basics of Python. Also available in a book if he needs that. PDF available from the website. www.bookpool.com has a large selection of books on Python. The "Python: How to Pro

shelve: writing out updates?!

Shelve uses dbm and pickle to make a persistent object store. The "db" in "dbm" stands for "database" and while I didn't expect full ACID capability, I'd have thought there'd be at least some minimum gesture towards durability of updates. But say that s is a shelve object. If I say s[whateve

Re: pySerial Windows write problem

Thanks heaps for the help, guys! I bit the bullit and am now leaving the serial ports open all of the time. I still think it is a driver/hardware problem. When the ports go South even a reboot of the laptop the program is running on won't fix it. The hardware is all brand new, so it should have

Re: shelve: writing out updates?!

Paul Rubin wrote: > Shelve uses dbm and pickle to make a persistent object store. The > "db" in "dbm" stands for "database" and while I didn't expect full > ACID capability, I'd have thought there'd be at least some minimum > gesture towards durability of updates. But say that s is a shelve > obj

Re: Dabo in 30 seconds?

On Saturday 30 July 2005 21:16, EP wrote: > Ed Leafe wrote in response to the "Python vs. Access VBA" thread: > > You might want to look at Dabo, which is a database application > > framework for Python. In about 30 seconds you can create an application > > that queries a database, displays the r

Re: A replacement for lambda

Paul Rubin wrote: > Christopher Subich <[EMAIL PROTECTED]> writes: > >>My personal favourite is to replace "lambda" entirely with an >>"expression comprehension", using < and > delimeters. > > > But how does that let you get more than one expression into the > anonymous function? It doesn't. F

Re: A replacement for lambda

Scott David Daniels wrote: > What kind of shenanigans must a parser go through to translate: > < > > this is the comparison of two functions, but it looks like a left- > shift on a function until the second with is encountered. Then > you need to backtrack to the shift and convert it to a pa

Re: A replacement for lambda

Paolino wrote: > why (x**2 with(x))<(x**3 with(x)) is not taken in consideration? Looks too much like a generator expression for my taste. Also, syntax could be used with 'for' instead of 'with' if PEP343 poses a problem, whereas (expr for params) is identically a generator expression. > If 'w

Re: A replacement for lambda

Paddy wrote: > Christopher Subich <[EMAIL PROTECTED]> writes: > >>Basically, I'd rewrite the Python grammar such that: >>lambda_form ::= "<" expression "with" parameter_list ">" > > > I do prefer my parameter list to come before the expression. It would > remain consistant with simple function d

Re: Dabo in 30 seconds?

On Saturday 30 July 2005 06:16 pm, EP wrote: > Ed Leafe wrote in response to the "Python vs. Access VBA" thread: > > You might want to look at Dabo, which is a database application > > framework for Python. In about 30 seconds you can create an application > > that queries a database, displays

Re: Dabo in 30 seconds?

James Stroud <[EMAIL PROTECTED]> writes: > My advice is to choose something, one thing, that is REAL standard, > and in the standard library (e.g. Tkinter). And go for it. Learn it > inside and out--it will always be there for you. It is the green, > green grass of home, not that greener grass on t

Re: Dabo in 30 seconds?

On Saturday 30 July 2005 23:29, James Stroud wrote: > I am going to go ahead and throw out Dabo with all of the others that claim > quick development of an application. You try them and then you get bugs, > bugs, bugs. Or they don't compile without 16000 dependencies. Forget it. My > advice is to

Re: HTML Scraping??

There are several HTML scraping examples that ship with pyparsing, including a URL extractor, temperature display, and NTP server extractor (this last is probably closest to your question). Download pyparsing at http://pyparsing.sourceforge.net. -- Paul -- http://mail.python.org/mailman/listinf

Passing a log handle to a module? Help needed with logging module and

Hi all, So I have a slice of code which calls other python code. I have started to take a real liking to the logging module, but I want to extend this into the called python code. I have no idea how to pass the handle from the calling code into the modules.. So basically here is what I do.. --

Re: A replacement for lambda

[EMAIL PROTECTED] (Bengt Richter) writes: > On Fri, 29 Jul 2005 18:07:31 -0400, Mike Meyer <[EMAIL PROTECTED]> wrote: >>I know, lambda bashing (and defending) in the group is one of the most >>popular ways to avoid writing code. However, while staring at some Oz >>code, I noticed a feature that wo

Asking the user a question and giving him a default answer he can edit

I'm trying to figure out the python readline module to see if it will do this. Basically, I've got a bunch of questions to ask a user, the vast majority of which, the answer will only vary by the last few characters. What I'd like to do is every time the user is asked a question, give him the defa

Re: keylogger in Python

yo, thanks for the great input. And the only reason i want to create a python based keylogger is because there is none. Just a fun project... But im gonna do some more research on the keyboard drivers and stuff like that and to learn how to attach my python porgrams into the sub-processes so that i

Re: Wheel-reinvention with Python

Torsten Bronger <[EMAIL PROTECTED]> writes: > Hallöchen! > Calvin Spealman <[EMAIL PROTECTED]> writes: >> The choice is GUI toolkits is largely seperate from >> Python. Consider that they are just bindings to libraries that are >> developed completely seperate of the language. GUI is should be >>

Re: multiple inheritance super()

"Michele Simionato" <[EMAIL PROTECTED]> writes: I think you're replying to me, but you didn't include any indication so I can't be sure. > If I understand correcly you have a situation like this: > > Base > > | > > Parent1 Mixin > | | > | | > Children1 > > Base > > | > > Paren

How to convert a string like '777' to an octal integer like 0777?

Hi, This may be a rudimentary question: How to convert a string like '777' to an octal integer like 0777, so that it can be used in os.chmod('myfile',0777)? I know the leading zero is important in os.chmod. KB -- http://mail.python.org/mailman/listinfo/python-list

Re: How to convert a string like '777' to an octal integer like 0777?

KB wrote: > Hi, > > This may be a rudimentary question: > > How to convert a string like '777' to an octal integer like 0777, > so that it can be used in os.chmod('myfile',0777)? > > I know the leading zero is important in os.chmod. There is no law that says constant arguments to os.chmod have

Re: multiple inheritance super()

Mike Meyer: > I think you're replying to me, but you didn't include any indication > so I can't be sure. Oops, sorry, yes, I was replying to you. > These two are cases of what I was talking about when I referred to the > Church-Turing thesis. Well, let me put it in this way. If a language can i

Re: Wheel-reinvention with Python

Hallöchen! Mike Meyer <[EMAIL PROTECTED]> writes: > Torsten Bronger <[EMAIL PROTECTED]> writes: > >> Calvin Spealman <[EMAIL PROTECTED]> writes: >> >>> The choice is GUI toolkits is largely seperate from >>> Python. Consider that they are just bindings to libraries that >>> are developed complete

Re: Dabo in 30 seconds?

On Sat, 2005-07-30 at 20:29 -0700, James Stroud wrote: > I am going to go ahead and throw out Dabo with all of the others that claim > quick development of an application. You try them and then you get bugs, > bugs, bugs. Or they don't compile without 16000 dependencies. Forget it. My > advice i

Re: [path-PEP] Path inherits from basestring again

On Sat, 30 Jul 2005 19:01:49 +0200, Reinhold Birkenfeld <[EMAIL PROTECTED]> wrote: >phil hunt wrote: > >> def normalizePath(p, *pathParts): >>""" Normalize a file path, by expanding the user name and getting >>the absolute path.. >>@param p [string] = a path to a file or directory >>

Re: Wheel-reinvention with Python

On Sat, 30 Jul 2005 16:51:13 +0200, Torsten Bronger <[EMAIL PROTECTED]> wrote: >Hallöchen! > >[EMAIL PROTECTED] (phil hunt) writes: > >> [...] >> >> How about sometihing with the same API as Tkinter (so no need to >> relearn), but which looks prettier? Would that fix your gripes? > >I haven't learn

Re: shelve: writing out updates?!

On 30 Jul 2005 17:48:39 -0700, Paul Rubin wrote: >Shelve uses dbm and pickle to make a persistent object store. The >"db" in "dbm" stands for "database" and while I didn't expect full >ACID capability, What is ACID? > I'd have thought there'd be at least some minimum >

Re: shelve: writing out updates?!

On Sat, 30 Jul 2005 17:57:17 -0700, Robert Kern <[EMAIL PROTECTED]> wrote: >Paul Rubin wrote: >> Shelve uses dbm and pickle to make a persistent object store. The >> "db" in "dbm" stands for "database" and while I didn't expect full >> ACID capability, I'd have thought there'd be at least some min

Re: Wheel-reinvention with Python

Hallöchen! [EMAIL PROTECTED] (phil hunt) writes: > On Sat, 30 Jul 2005 16:51:13 +0200, Torsten Bronger <[EMAIL PROTECTED]> wrote: > >> [EMAIL PROTECTED] (phil hunt) writes: >> >>> [...] >>> >>> How about sometihing with the same API as Tkinter (so no need to >>> relearn), but which looks prettier

Re: Wheel-reinvention with Python

On Sun, 2005-07-31 at 00:59 -0400, Mike Meyer wrote: > I don't particularly like Tkinter, but it seems to me that it's pretty > much won. It seems to be installed on every desktop platform along > with Python. That means that if I want to distribute GUI apps, I'm > going to cause the least headach

Re: The state of OO wrappers on top of wxPython (was Re: Wheel-reinvention with Python)

On Sat, 2005-07-30 at 16:52 -0700, Bugs wrote: > Cliff Wells wrote: > > > > But how stable is GTK on systems such as Windows and OS/X? That has > > been what has kept me from using it. Most GTK apps I've used on Windows > > (including the venerable GIMP) are nowhere near as stable as their Linux

Re: shelve: writing out updates?!

phil hunt wrote: > Obviously it's good when stuff is well documented. > > I wonder if the barrier to good documentation is set too high? > If i wanted to add some documentation here, I'd have to download the > current source for the latest Python documentation, download, > install and learn th

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