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

need for binary floats (except performance)?
by kartik_vad＠yahoo.com Feb. 1, 2005

Feb. 1, 2005

Since the Decimal type can represent any given fractional number exactly, including all IEEE binary floating-point numbers, wouldn't it be advisable to use Decimals for all floating point numbers (except possibly for performance)? Thanks, Kartik.

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barchart for webpage needed
by dimitri pater Feb. 1, 2005

Feb. 1, 2005

Hello, I am looking for a Python tool to create graphs and charts on a webpage. Chartdirector is too expensive for me. A simple script for creating a barchart should be sufficient as a starting point. Thanks! Dimitri -- Please visit dimitri's website: www.serpia.com

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Python's idiom for function overloads
by Frans Englich Feb. 1, 2005

Feb. 1, 2005

Hello, Since Python doesn't have static typing, how is the same result as traditional function overloads results in acheived? With function overloads the "selection of code path depending on data type" is transparent and automatic since the typing system figure out what goes to what. But in Python, when one wants to be able to pass different data types into a single "entry point" for functionality, how is that best done? To in a function do an if statement with the type() function? Cheers, Frans

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Re: Java Integer.ParseInt translation to python
by ech0 Feb. 1, 2005

Feb. 1, 2005

buffer[0] = int(string,16) & 0xff that should work

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Re: getting data from a port in use
by Grant Edwards Feb. 1, 2005

Feb. 1, 2005

On 2005-02-01, Dana Marcusanu <dmarcusanu(a)yahoo.com> wrote: > I am trying to use Python to get the data received at a specific port (in > use) on my computer. What do you mean "in use"? You mean you want to evesdropt on data that's being sent to an existing connection? If so, you'll need to use something like the pcap library. > I already tried below code which seems to hang at the > statement accepting connections. I don't know what else I can try. Any > suggestions will be welcome. > > import socket, select, os > > PORT = 2005 > s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) > s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) > s.bind((socket.gethostname(), PORT)) > s.listen(1) > work_socket, addr = s.accept() > data = s.recv(1024) No matter what you're trying to do, this isn't right. Once the connection has been accepted, you have to read data from the socket returned by the accept() call. > print data > s.close() -- Grant Edwards grante Yow! Actually, what at I'd like is a little toy visi.com spaceship!!

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Vancouver Python/Zope/Plone: Creating OS X Cocoa Applications Using XML and Python
by Paul Prescod Feb. 1, 2005

Feb. 1, 2005

February 1, 2005 Creating OS X Cocoa Applications Using XML and Python, Dethe Elza This talk will cover the use of Renaissance and Python to develop programs for OS X, focussing on both rapid application development, and ease of maintenance. Renaissance is an XML dialect for describing Cocoa (or GNUstep) user interfaces, which can be used as an alternative to Apple's binary NIB format. It grew out of the GNUstep? project and is intended for use with Objective-C, but works seamlessly from Python with the PyObjC bridge. Hosted by ActiveState ("a division of Sophos") at 580 Granville St., Vancouver

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getting data from a port in use
by Dana Marcusanu Feb. 1, 2005

Feb. 1, 2005

Hi to all, I am trying to use Python to get the data received at a specific port (in use) on my computer. I already tried below code which seems to hang at the statement accepting connections. I don't know what else I can try. Any suggestions will be welcome. import socket, select, os PORT = 2005 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) s.bind((socket.gethostname(), PORT)) s.listen(1) work_socket, addr = s.accept() data = s.recv(1024) print data s.close() Thank you, Dana __________________________________ Do you Yahoo!? Meet the all-new My Yahoo! - Try it today! http://my.yahoo.com

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How do I delete the bound character which triggered callback?
by Mudcat Feb. 1, 2005

Feb. 1, 2005

Howdy, I have a simple combox that I have commands entered into which looks like this: """This is a list with the commands to be run in rotisserie fasion.""" self.comList = Pmw.ComboBox(self.boxFrame, labelpos=W, label_text='Command List: ', entry_width=20, selectioncommand=self.temp ) self.comList.pack(side=LEFT) self.comList.component('entry').bind(';', self.enterCommand) I have bound the ';' key because that is the terminating character in the protocol we are using, and once that is entered the entry is complete. Basically it skips the normal methond this box uses to capture commands. However, I can't get rid of it once the call is made. This is what I'm doing on the callback: def enterCommand(self, widget): # Get current list of commands, must convert to list comTuple = self.comList.get(0, END) commandsList = list( comTuple) # Get current command entered into the entry field currentCommand = self.comList.component('entry').get() currentCommand += ";" print currentCommand # Append new entry into current list and set the new list commandsList.append(currentCommand) self.comList.setlist( commandsList ) self.comList.component('entryfield').delete(0,END) At the end of this function I want to completely erase everything in the entryfield. However it erases everything but the bound key, ';'. Does anyone know how to erase that one as well? Thanks, Marc

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Re: Java Integer.ParseInt translation to python
by Paul Rubin Feb. 1, 2005

Feb. 1, 2005

"jose isaias cabrera" <jicman(a)cinops.xerox.com> writes: > I've looked through the internet (not long, though) but I have not > been able to find a python translation to > > buffer[0] = (byte)Integer.parseInt(string,16); > > Has anyone ported any java programs to python and has translated this? I think the Python equivalent would be: buffer[0] = chr(int(string, 16)) That is, you're trying to convert two hex digits into a single char, right?

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