🌐 Mailman 3 May 2000 - Python-list - python.org

Error message
by John W. Baxter June 2, 2000

June 2, 2000

We've been muttering about error messages lately (partly in connection with the case threads). TypeError: not enough arguments for format string The most recent time I encountered this, the actual error was: TypeError: too much format string for arguments (I had put one too many %... thingies into the string for the data I wanted to deal with.) I'm just musing...I don't see a need for any changes here. --John -- John W. Baxter Port Ludlow, WA USA jwbnews(a)scandaroon.com

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A Python Beginner on Win32
by yuri_leikind＠my-deja.com June 2, 2000

June 2, 2000

Hi All, When I decide to know what Python is, I downloaded the installation for Win32, py152.exe, and ran it. It installed Python and Tcl/Tk. Okey. Then I tried to run IDLE to see what they mean by saying "Python GUI" . No way. It just doesn't want to find Tcl/Tk. It says: Traceback (innermost last): File "idle.py", line 3, in ? PyShell.main() File "I:\programs\Python\Tools\idle\PyShell.py", line 611, in main root = Tk() File "I:\programs\Python\Lib\lib-tk\Tkinter.py", line 886, in __init__ self.tk = _tkinter.create(screenName, baseName, className) TclError: Can't find a usable init.tcl in the following directories: {} ./lib/tcl8.0 I:/programs/Python/tcl8.0/library I:/programs/Python/Tools/library This probably means that Tcl wasn't installed properly. Whatever I did, copied tcl/tk to the places where python wanted to find the - nothing!!! Is there a GUI at all? Yuri Leikind Sent via Deja.com http://www.deja.com/ Before you buy.

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Wondering about Domingo's Rational Mean book
by Kirby Urner June 2, 2000

June 2, 2000

Have folks on sci.math already discussed http://www.etheron.net/usuarios/dgomez/Roots.htm to anyone's recollection? I'd be interested in comments and/or pointers to previous postings. I don't have the necessary background to evaluate the significance of this work, but the algorithms made interesting programming exercises. Using them, I was able to get: 3rd root of 2 is about: 65379522 --------- 51891761 3rd root of 10 is about: 91969780593702397138462508494860 --------------------------------- 42688590663356403236303435376201 You can push these things further. E.g. 10^(1/3) ~= 2196555918195778106276024585870817879185576760 ---------------------------------------------- 1019550942230358826790302872023722041913882251 I also liked his concise presentation of Halley's method, which gives me the floating point nth rooth of an integer. Here's a recursive version: def halley(P,n,d=10,x=1): # Source: http://www.etheron.net/usuarios/dgomez/Roots.htm # P -- find nth root of this number # n -- whole number root # d -- level of depth for recursion (default 10) # x -- initial value of x (default 1) if d>1: newx = ((n+1.0)*P*x + (n-1)*(x**(n+1)))/((n-1)*P + (n+1)*x**n) return halley(P,n,d-1,newx) else: return x Usage: >>> halley(10,3) # 3rd root of 10 to depth 10 2.1544346900318838 >>> halley(2,3) # 3rd root of 10 to depth 10 1.2599210498948732 >>> halley(12931021,7) # 7th root of 12931021 to depth 10 10.336898680701067 >>> halley(12931021,7,40) # same to depth 40 (more accurate) 10.374031092075427 Sorry if this is old hat on sci.math -- thought it was pretty cool myself. Kirby Cc: people(a)fluidiom.com (from whence I first learned of Domingo's work): ============= >From: "Robert Coulter" <rcoulter(a)mvrpc.org> >To: <people(a)fluidiom.com> >Subject: fluidiom: math stuff >Date: Tue, 9 May 2000 16:55:14 -0400 > >Anybody out there follow what this guy (Domingo Gomez Morin) is up to...? >Kirby? Allen? >Would this be useful in fluidiom ... *IS* this "New and Improved"? >He doesn't seem bashful even as he bashes cartesian thought... >so he oughta fit in OK around here. > >http://www.etheron.net/usuarios/dgomez/default.htm > >Core9

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Path to package
by ame＠swipnet.se June 2, 2000

June 2, 2000

Hello! I'm trying to create an CGI application which will use one of my package. In this package there are some HTML-files. If I have all files in the same directory, both my cgi application and the package, then the package will find the html-files. but if I separate them, like I want to, and put the cgi-file into cgi-bin and the package into site-packages, then the package will search for the html-file in the cgi-bin directory. How do I solve this? // Anders

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mxCGI Needed...Can't Find anywhere...
by junkster＠rochester.rr.com June 2, 2000

June 2, 2000

Folks, Can anyone point me in the right direction? I'm trying to find a copy of MxCGI, to be placed on a Win NT (NT 4), Web server, along with MxDateTime & MxODBC..... But all the links that I can find (i.e. The Vaults of Parans.) are being returned as invalid..... I know Starship went down, but does anyone know of a backup server that might contain recent versions of the said modules? - Benjamin junkster(a)rochester.rr.com Sent via Deja.com http://www.deja.com/ Before you buy.

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IDLE & Win 95
by gary_thomson＠yahoo.com June 2, 2000

June 2, 2000

I've installed Python 1.5.2 and Tcl/Tk on my machine. I wanted to use IDLE. Downloaded it from the net and overwrote the IDLE folder in the Tools directory. When I go to IDLE (Python GUI) in the Start menu, nothing happens. Similarly double clicking idle.pyw. What makes this more mysterious is that I managed to do this at work (under Windows 98) without any problems. IDLE is cool! Hence I'd like to be able to work with it at home. can anyone see what I need to do to get it working? TIA Gary Thomson garyt(a)garyt.force9.co.uk Try MindProbe. Let your PC read your mind Visit http://www.garyt.f9.co.uk

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Using strings with ' in them in SQL-queries
by thomas＠cintra.no June 2, 2000

June 2, 2000

Hi, I need to insert strings with ' in them in query-strings. I`m using the PostgreSQL-database. If I try stuff like this : db = _pg.connection(....) db.query('insert into test (id, name) value (1, 'fdsfds''fdsf') ') That works ok. But the string I need to insert I get from a variable. I cannot seem to use a variable in the query-string. Is there any way around this? How can I handle characters in strings that may comprimise the requirements of a valid sql-statement?? Thomas

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Installing numpy
by Duncan Smith June 1, 2000

June 1, 2000

I'm trying to install Numerical-15.2 after successfully installing Distutils-0.1.3. But I get the following: >>> running install running build running build_py not copying Lib\ArrayPrinter.py (output up-to-date) not copying Lib\FFT.py (output up-to-date) not copying Lib\LinearAlgebra.py (output up-to-date) not copying Lib\MLab.py (output up-to-date) not copying Lib\Matrix.py (output up-to-date) not copying Lib\Numeric.py (output up-to-date) not copying Lib\Precision.py (output up-to-date) not copying Lib\RandomArray.py (output up-to-date) not copying Lib\UserArray.py (output up-to-date) running build_ext cl.exe /nologo /Ox /MD -IC:\PROGRAM FILES\PYTHON\include\python1.5 -IC:\PROGRAM FILES\PYTHON\include -IInclude /c /FoSrc/_numpymodule.obj /TcSrc/_numpymodule.c Traceback (innermost last): File "C:\Program Files\Python\Pythonwin\pywin\framework\scriptutils.py", line 310, in RunScript exec codeObject in __main__.__dict__ File "C:\Program Files\Python\Numerical-15.2\setup.py", line 58, in ? ext_modules = [('_numpy', File "C:\PROGRAM FILES\PYTHON\distutils\core.py", line 97, in setup dist.run_commands () File "C:\PROGRAM FILES\PYTHON\distutils\core.py", line 526, in run_commands self.run_command (cmd) File "C:\PROGRAM FILES\PYTHON\distutils\core.py", line 575, in run_command cmd_obj.run () File "C:\Program Files\Python\Numerical-15.2\setup.py", line 41, in run install.Install.run (self) File "C:\PROGRAM FILES\PYTHON\distutils\command\install.py", line 282, in run self.run_peer ('build') File "C:\PROGRAM FILES\PYTHON\distutils\core.py", line 886, in run_peer self.distribution.run_command (command) File "C:\PROGRAM FILES\PYTHON\distutils\core.py", line 575, in run_command cmd_obj.run () File "C:\PROGRAM FILES\PYTHON\distutils\command\build.py", line 54, in run self.run_peer ('build_ext') File "C:\PROGRAM FILES\PYTHON\distutils\core.py", line 886, in run_peer self.distribution.run_command (command) File "C:\PROGRAM FILES\PYTHON\distutils\core.py", line 575, in run_command cmd_obj.run () File "C:\PROGRAM FILES\PYTHON\distutils\command\build_ext.py", line 150, in run self.build_extensions (self.extensions) File "C:\PROGRAM FILES\PYTHON\distutils\command\build_ext.py", line 213, in build_extensions include_dirs=include_dirs) File "C:\PROGRAM FILES\PYTHON\distutils\msvccompiler.py", line 103, in compile self.spawn ([self.cc] + cc_args) File "C:\PROGRAM FILES\PYTHON\distutils\ccompiler.py", line 431, in spawn spawn (cmd, verbose=self.verbose, dry_run=self.dry_run) File "C:\PROGRAM FILES\PYTHON\distutils\spawn.py", line 37, in spawn _spawn_nt (cmd, search_path, verbose, dry_run) File "C:\PROGRAM FILES\PYTHON\distutils\spawn.py", line 70, in _spawn_nt raise DistutilsExecError, \ DistutilsExecError: command 'cl.exe' failed: No such file or directory Anyone know where I'm going wrong? Cheers.

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Re: [Python-Dev] What's that sound?
by Paul Prescod June 1, 2000

June 1, 2000

"Barry A. Warsaw" wrote: > > Or a big foot hurtling its way earthward? The question is, what's > that thing under the shadow of the big toe? I can only vaguely make > out the first of four letters, and I think it's a `P'. Look closer, big-egoed-four-stringed-guitar-playing-one. It could just as easily be a J. And you know what you get when you put P and J together? -- Paul Prescod - ISOGEN Consulting Engineer speaking for himself "I want to give beauty pageants the respectability they deserve." - Brooke Ross, Miss Canada International

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Python sighting in the wild: Red Hat's Anaconda GUI installer
by Warren Postma June 1, 2000

June 1, 2000

I noticed while installing Red Hat Linux version 6.2 that their entire installation system is written in Python. Way to go Red Hat. I guess the Snakes thing should have tipped me off. Technically, installer programs are "embedded systems". It's a demanding place to put any technology, and it speaks volumes for Python that Anaconda doesn't just work, it works well. I'm convinced that Linux + Python is going to be a real killer in the embedded systems world. Now if only I could get Linux+Python+TinyX all on one 1.44 mb floppy. (Anyone seen the QNX technology demo 1.44 mb floppy?) Warren Postma

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