🌐 Mailman 3 February 2005 - Python-list - python.org

Re: variable declaration
by Michael Tobis Feb. 1, 2005

Feb. 1, 2005

Given the behavior, the documentation is gratifyingly correct. Given that the syntax is legal, though, the behavior is not what one would intuitively expect, and is therefore unPythonic by (rather dramatically) violating the principle of least surprise. It's also, to me, understandable why it's difficult for the language design to avoid this behavior. This little discovery of mine sheds some considerable light on the awkwardness of what you guys will deign to call "declarations". This being the case, I can understand the resistance to "declarations" in Python. I had thought, until the current conversation and this experiment, that the globals statement, er, declaration was just another executable, especially given all the stress on Python's being purely executable. I still see "global" and "@" as expressions of the same fundamental problem, even though decorators are not implemented as declarations. They both take effect in a non-intuitive sequence and they both affect the reference rather than the referent. This points out the problem that Python has in qualifying references rather than referents. Since BDFL is contemplating some optional typing, does this also imply qualifying the references? Maybe you wizard types can agree that there is a useful abstraction that I'm talking about here, whether you wish to call it "declarations" or not, and try to factor out some sort of consistent strategy for dealing with it, perhaps in P3K. (I will try to be in a position to help someday, but I have a long way to go.) Language features that modify references rather than referents appear to be problematic. Python clearly chafes at these. Yet there are at least a few compelling reasons to want them. -- mt

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Remove HTML tags (except anchor tag) from a string using regular expressions
by Nico Grubert Feb. 1, 2005

Feb. 1, 2005

Hello, I want to remove all html tags from a string "content" except <a ...>xxx</a>. My script reads like this: ### import re content = re.sub('<([^!>]([^>]|\n)*)>', '', content) ### It works fine. It removes all html tags from "content". Unfortunately, this also removes <a ...>xxx</a> occurancies. Any idea, how to modify this to remove all html tags except <a ...>xxx</a>? Thanks in advance, Nico

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MDaemon Warning - virus found: Returned mail: see transcript for details
by Post Office Feb. 1, 2005

Feb. 1, 2005

******************************* WARNING ****************************** Este mensaje ha sido analizado por MDaemon AntiVirus y ha encontrado un fichero anexo(s) infectado(s). Por favor revise el reporte de abajo. Attachment Virus name Action taken ---------------------------------------------------------------------- file.zip Email-Worm.Win32.Mydoom.m Removed ********************************************************************** The original message was received at Tue, 1 Feb 2005 16:53:42 +0100 from python.org [96.182.125.158] ----- The following addresses had permanent fatal errors ----- <python-list(a)python.org> ----- Transcript of the session follows ----- ... while talking to python.org.: 554 <python-list(a)python.org>... Message is too large 554 <python-list(a)python.org>... Service unavailable

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Re: Building Python with Tcl/Tk on Cygwin_NT-5.1
by Kartic Feb. 1, 2005

Feb. 1, 2005

Dean, It has been quite sometime since I did that. I had installed Tcl/TK in a non-standard location on my Freebsd box. So, for Python to compile _tkinter, in the configure script I passed the location of the Tcl/Tk includes and libs. So, you will have to find out where in the Cygwin tree the tcl includes and libraries are installed. On my Freebsd box, I did: CFLAGS="-I/usr/local/tcl/include" \ # that is a - capital i LDFLAGS="-L/usr/local/tcl/lib" \ ./configure \ .... rest of configure options. (put this in something like do-conf) and at the prompt type sh do-conf. OR you can use the --with-libs='lib1 ...' option for the configure script. You will to give the path to your TCL libraries against this option. Do a configure --help to see the available configure options with some help strings. But like Jason mentioned, why don't you use the stock Python install that comes with Cygwin; it is tkinter enabled and works just fine? (unless you have a compelling reason to install from source) Thanks, --Kartic

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import doesn't work as i want
by Olivier Noblanc ATOUSOFT Feb. 1, 2005

Feb. 1, 2005

Hello, In the botom of this post you will see my source code. The problem is when i launch main.py that doesn't make anything why ? Thanks olivier noblanc Atousoft http://www.logiciel-erp.fr I have main.py : --------------------------------- import wx import inc.importlist ---------------------------------- inc/importlist.py ------------------------------------ import wx.grid import getdata import time import sys ----------------------------------- inc/wxgrid.py ------------------------------------- # -*- coding: cp1252 -*- #starta = time.time() import wx import getdata class MyFrame(wx.Frame): def __init__(self, *args, **kwds): # begin wxGlade: MyFrame.__init__ kwds["style"] = wx.DEFAULT_FRAME_STYLE wx.Frame.__init__(self, *args, **kwds) self.grid_1 = wx.grid.Grid(self, -1, size=(1, 1)) self.__set_properties() self.__do_layout() # end wxGlade def __set_properties(self): # begin wxGlade: MyFrame.__set_properties self.SetTitle("frame_1") self.SetSize((400, 400)) # end wxGlade self.grid_1.CreateGrid(len(db.data), len(db.fields)) # met les labels des colonnes index = 0 for item in db.fields: self.grid_1.SetColLabelValue(index, item[0]) index += 1 # remplissage des données. for row in range(len(db.data)): for col in range(len(db.data[row])): values = db.data[row][col] self.grid_1.SetCellValue(row,col,str(values)) # mise en forme et affichage def __do_layout(self): # begin wxGlade: MyFrame.__do_layout sizer_1 = wx.BoxSizer(wx.VERTICAL) sizer_1.Add(self.grid_1, 1, wx.EXPAND, 0) self.SetAutoLayout(True) self.SetSizer(sizer_1) self.Layout() # end wxGlade # end of class MyFrame if __name__ == "__main__": app = wx.PySimpleApp(0) wx.InitAllImageHandlers() frame_1 = MyFrame(None, -1, "") app.SetTopWindow(frame_1) frame_1.Show() #startb = time.time() - starta #print startb app.MainLoop() --------------------------------------- inc/getdata.py ---------------------------------------------- import MySQLdb class Eb_db: def __init__(self): try: connection = MySQLdb.connect(host="dellced", user="ats", passwd="", db="atsmedicdatabase" ) cursor = connection.cursor() cursor.execute( "SELECT * FROM PATIENT " ) except MySQLdb.OperationalError, message: errorMessage = "Error %d:\n%s" % ( message[ 0 ], message[ 1 ] ) return else: self.data = cursor.fetchall() self.fields = cursor.description cursor.close() connection.close() -----------------------------------------

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implicit conversion
by Benjamin Schmeling Feb. 1, 2005

Feb. 1, 2005

Hi, I am working on exposing a bigint class to python. Now I've got the problem that methods which take an bigint as an parameter do not accept Python longs. For example: import _PythonLiDIA x=123L; c=_PythonLiDIA.bigint(); _PythonLiDIA.gcd(c,x); Traceback (most recent call last): File "test.py", line 132, in ? _PythonLiDIA.gcd(a,x); Boost.Python.ArgumentError: Python argument types in _PythonLiDIA.gcd(bigint, long) did not match C++ signature: gcd(LiDIA::bigint, LiDIA::bigint) I don't know how to achieve implicit conversion at this point, turning an long automatically into an bigint. The other way round, turning an bigint into long can be realized by defining __long__. Can someone help me please? Benjamin

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Re: PyCon signature advertising
by Roy Smith Feb. 1, 2005

Feb. 1, 2005

In article <mailman.1690.1107267215.22381.python-list(a)python.org>, "Mike C. Fletcher" <mcfletch(a)rogers.com> wrote: > Steve Holden wrote: > ... > > > I appreciate that not everyone has control over their .sig, > > ... > > Take control of your sigs, my sisters and brothers! Viva la > Revolution! Follow the Steve into the heat and light of PyCon. You can > achieve enlightenment if only you go to the District on the Eastern Edge > of the new continents when the spring arrives. It is only there that > all will be revealed. It is only there that you shall find peace. > > Joy to the Python world! > Mike And the smallest child asked: Why is this language different from all other languages?. In all other languages, we are driven to declare our variables in a static manner, as surely as the compiler compels us to know their types ahead of time, and be forced to invoke the power of the reinterpret_cast whenever we need to deviate from the straight path laid out for us. Why do we not in this language? In all other languages, we may indent as we please, depending on the twin angels of the curly-brace and the semicolon to discern the true meaning from the meanderings of our code across the pages of our printouts. Why do we indent with tabs as rigidly as the rows of corn in our fields in this language? In all other languages, we omit explicit references to self, trusting to context to determine the scope of our variables. Why in this language do we speak our own name with overbearing monotony each time we refer to an instance variable? In all other languages, we are forced to choose between object orientation and procedural code and bear the burden of our choice all through the long days of the project lifecycle. Why in this language are we free to mix paradigms, even to the point of using functional programming constructs only whenever they seem cool and useful without fear of retribution from the methodology police? Then the smallest child was silent, and the old man began to speak.

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Re: PyCon signature advertising
by Steve Holden Feb. 1, 2005

Feb. 1, 2005

Mike C. Fletcher wrote: > Steve Holden wrote: > .... > >> I appreciate that not everyone has control over their .sig, > > > .... > > Take control of your sigs, my sisters and brothers! Viva la > Revolution! Follow the Steve into the heat and light of PyCon. You can > achieve enlightenment if only you go to the District on the Eastern Edge > of the new continents when the spring arrives. It is only there that > all will be revealed. It is only there that you shall find peace. > > Joy to the Python world! > Mike > > ________________________________________________ > Mike C. Fletcher > Designer, VR Plumber, Coder > http://www.vrplumber.com > http://blog.vrplumber.com > PyCon is coming... > That's the spirit! Of course, a URL wouldn't hurt ;-) backing-away-smiling-ly y'rs - steve -- Meet the Python developers and your c.l.py favorites March 23-25 Come to PyCon DC 2005 http://www.python.org/pycon/2005/ Steve Holden http://www.holdenweb.com/

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PyCon signature advertising
by Steve Holden Feb. 1, 2005

Feb. 1, 2005

You will note that I have changed my signature for newsgroups to include a plug for PyCon. I would very much appreciate any similar changes that c.l.py readers felt able to make to help get the word out that PyCon is *the* place to be for Python users and developers. I appreciate that not everyone has control over their .sig, and that some people find advertising of this crassly commercial nature a little distasteful. If either of these is the case, please simply ignore this message (though you should, of course, still come to PyCon :-) Every little helps, however, and I'd like my third (and final) year as chairman to see the biggest and (much more importantly) best PyCon ever. I hope to meet as many of you as possible in DC, March 23-25 (and during the four-day sprint preceding the main event). regards Steve -- Meet the Python developers and your c.l.py favorites Come to PyCon!!!! http://www.python.org/pycon/2005/ Steve Holden http://www.holdenweb.com/

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[OT] post-structuralist object oriented system
by PA Feb. 1, 2005

Feb. 1, 2005

For your entertainment: "Lua’s Story of O" http://alt.textdrive.com/lua/19/lua-story-of-o Cheers -- PA, Onnay Equitursay http://alt.textdrive.com/

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