🌐 Mailman 3 April 2006 - Python-list - python.org

bonobo bindings?
by Patrick Jacquot April 30, 2006

April 30, 2006

Hi group! Did anybosy here have some success using the bonobo bindings to interact with nautilus? -- Patrick

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setting file permissions on a web server
by John Salerno April 30, 2006

April 30, 2006

I always read about how you need to set certain file permissions (for cgi files, for example), but it's never been clear to me *how* you do this. I know you can run the line chmod 755 scriptname.py but *where* do you run this? Is this done on your personal system, or on the server? What if you are using Windows? If it's done on the server, how do you do it? The only way I've figured out so far how to do this is to upload my cgi files to my server, then within my FTP program I right-click the file and change its permission number that way, but that seems an inefficient way to do it, especially having to do it each time. Is there a way to put the above line within the script perhaps, so that the script sets its permission automatically? Or do certain editors allow you to save files with a predetermined permission? Aside from my right-clicking method, I don't know how else to do it.

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Re: Unpacking of query result
by DarkBlue April 30, 2006

April 30, 2006

Thank you Mission accomplished. Have a nice sunday Db

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Re: Unpacking of query result
by DarkBlue April 30, 2006

April 30, 2006

Hello Following part of an database query works fine : self.cur=con1.cursor self.cur.execute('select a,b,c,d from t1') for (a,b,c,d) in self.cur: print a,b,c,d but how to do this: self.cur.execute(sql_select_text_put_in_at_runtime) for (whatever_was_in_the_select_text_part_of_the_query) in self.cur: print 'returned result set' Will it be necessary to parse the sql string and find any possible return columns or is there a better way so that the query can be used generically , that is without knowing at coding time what or how many columns will be returned ? Thanks Db

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time conversions [hh:mm:ss.ms <-> sec(.ms)
by kpp9c April 30, 2006

April 30, 2006

Hi, I was looking at python & datetime and hoping that it would already have a method/func to translate time formats. I need to translate seconds to hh:mm:ss.ms and vice versa and would like the ability to do some basic arithmetic in these formats. I think that there just has to be a package or module out there that already does this with reasonable speed and accuracy. Sadly, i do indeed need both reasonable speed and accuracy since i will be adding up huge masses of small events (around 10 to 60 ms milliseconds in length) to create cloud like textures for real time audio/video at high sampling rates. i googled for hh:mm:ss.ms + python and didn't find much... best, -kp--- [mac os x w/ python 2.4.1]

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OpenOffice UNO export PDF help needed
by Sells, Fred April 30, 2006

April 30, 2006

I've geen googling for 3 days now, and cannot find out how to do this. I'm trying to use OpenOffice 2.0 and UNO to generate PDF documents. I'm using windows, but will have to make it work under Linux for production. I've been able to set the parameters and call the exportToPdf method, but the exported file is not PDF but an .odt document, I can change suffix from pdf to odt and double click on it and open it as openoffice. The project is sort of a custom mail-merge, but there is little data used to produce a lengthy contract and attachments. The whole thing needs to be done via a cgi script or a servlet. below is a java code snippet, submitted with apologies, I'm using that rather than python because I found better examples and my java IDE helps me out. I originally started out to do python, and will eventually shift back to it once I get this working public void writePDF(XTextDocument doc, String stringUrl) { String stringConvertType ="PDF Creator";// args[ 1 ]; PropertyValue propertyvalueHidden[] = new PropertyValue[ 0 ]; XStorable xstorable =( XStorable ) UnoRuntime.queryInterface( XStorable.class, doc ); // Preparing properties for converting the document PropertyValue propertyvalue[] = new PropertyValue[ 2 ]; propertyvalue[ 0 ] = new PropertyValue(); propertyvalue[ 0 ].Name = "Overwrite"; propertyvalue[ 0 ].Value = new Boolean(true); propertyvalue[ 1 ] = new PropertyValue(); propertyvalue[ 1 ].Name = "Filter"; propertyvalue[ 1 ].Value = "writer_pdf_Export"; //propertyvalue[ 1 ].Value = "impress_pdf_Export"; //also tried "PDF Creator" xstorable.storeToURL( stringUrl+".pdf", propertyvalue ); //also tried storeAsUrl, same result --------------------------------------------------------------------------- The information contained in this message may be privileged and / or confidential and protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by replying to this message and deleting the material from any computer. ---------------------------------------------------------------------------

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Re: Need help removing list elements.
by John Machin April 30, 2006

April 30, 2006

On 30/04/2006 12:22 AM, Max Erickson wrote: > nuffnough(a)gmail.com wrote in > news:1146316090.540227.278230@j73g2000cwa.googlegroups.com: > >> But this gives me "IndexError: list out of range > > You are making the list shorter as you are iterating. By the time your > index is at the end of the original list, it isn't that long any more. If you are hell-bent on conditionally deleting items from a list in situ, you need to do it backwards: for i in xrange(len(alist)-1, -1, -1): if not_interested(alist[i]): del alist[i] > Creating a new list and appending the elements you want to keep avoids > the problem. Or you can just use a list comprehension(untested): > > returned_lines=[line for line in open("lines.txt", 'rb') Call me crazy, but I wouldn't open the file in BINARY mode :-) > if line != ""] > > or just > > returned_lines=[line for line in open("lines.txt") if line] For a modicum of extra effort, the condition "if line.strip()" throws away lines containing only whitespace. However I don't see the point of creating a list of lines, then throwing out only *some* of the uninteresting ones. IMHO the OP might be better advised to read the file one line at a time, ignoring blank/empty/comment lines, then *validate* the remainder. Hint: with the semi-squished-list approach, you can't report the original line number of any erroneous line without extra effort. The OP might be even better advised to (read the source of, use) an existing config file parser module. Hope some of this helps, John

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Re: Can we create an_object = object() and add attribute like fora class?
by Pierre Rouleau April 30, 2006

April 30, 2006

Fredrik Lundh wrote: > Pierre Rouleau wrote: > > >>I can understand the design decision not to give object a __dict__, but >>I wonder if i'd be a good idea to have a class that derives from object >>and has a __dict__ to be in the standard library. > > > so you can replace one line of code in some of your programs with > an import statement ? > ok... I should have said "something like the built-in object type" instead of "standard library"... -- Pierre Rouleau

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Can we create an_object = object() and add attribute like for a class?
by Pierre Rouleau April 29, 2006

April 29, 2006

Hi all, Is there any reason that under Python you cannot instantiate the object class and create any attributes like you would be able for a normal class? Python 2.4.2 (#67, Sep 28 2005, 12:41:11) [MSC v.1310 32 bit (Intel)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> a = object() >>> a.data = 1 Traceback (most recent call last): File "<stdin>", line 1, in ? AttributeError: 'object' object has no attribute 'data' >>> >>> class Object: ... pass ... >>> a = Object() >>> a.data = 1 >>> print "a.data = ", a.data a.data = 1 >>> >>> class Object2(object): ... pass ... >>> b = Object2() >>> b.data = 2 >>> b.data 2 I also tried with Python 2.4.3 with the same results. Being able to do it would seem a natural way of declaring namespaces. -- Pierre Rouleau

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Re: midi input
by kpp9c April 29, 2006

April 29, 2006

http://www.mxm.dk/products/public/pythonmidi mxm rocks! i used to use it this to create midi files so i know it works... but now it has grown to big for my small brain, & have no clue how to actually use it... i keep hoping for a small tutorial and some more docs...., this partially due to the bizarre mysteries and dark science of the midi file format and how it actually works with time. I would love to be able to use this again... I just need to figure out how to change real human time into something that midi can use. If i could specify a tempo base (tempo of say 60) and have it go up a scale in quarter notes or something.. i could maybe figure it out from there. I just want to be able to specify notes like csound or something does: start_time, duration, freq etc.... but i think that this also will do realtime stuff and you can monitor/filter/pipe incoming midi data as well. I just don't know how to do that either.... another possibility is to look at csound or cmix or pd or supercollider all of which are free, mostly open source, and available on linux good luck on your quest!

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