🌐 Mailman 3 August 2007 - Python-list - python.org

wxpython TreeCtrl with os.listdir
by vedrandekovic＠v-programs.com Aug. 3, 2007

Aug. 3, 2007

Hello, Does anybody know how can I "insert" os.listdir items in wx python TreeCtrl and every item assign adequately icon on this example import wx class TestFrame(wx.Frame): def __init__(self): wx.Frame.__init__(self, None, title="simple tree with icons", size=(400,500)) il = wx.ImageList(16,16) # adequately icons self.fldridx = il.Add(wx.ArtProvider.GetBitmap(wx.ART_FOLDER, wx.ART_OTHER, (16,16))) # icon for os.listdir folder self.fldropenidx = il.Add(wx.ArtProvider.GetBitmap(wx.ART_FILE_OPEN,wx.ART_OTHER, (16,16))) # icon for os.listdir file self.fileidx = il.Add(wx.ArtProvider.GetBitmap(wx.ART_NORMAL_FILE, wx.ART_OTHER, (16,16))) # icon for os.listdir open folder self.tree = wx.TreeCtrl(self) self.tree.AssignImageList(il) root = self.tree.AddRoot("wx.Object") self.tree.SetItemImage(root, self.fldridx,wx.TreeItemIcon_Normal) self.tree.SetItemImage(root, self.fldropenidx,wx.TreeItemIcon_Expanded) self.AddTreeNodes(root, data.tree) # There must be os.listdir items self.tree.Expand(root) def AddTreeNodes(self, parentItem, items): for item in items: if type(item) == str: newItem = self.tree.AppendItem(parentItem, item) self.tree.SetItemImage(newItem, self.fileidx,wx.TreeItemIcon_Normal) else: newItem = self.tree.AppendItem(parentItem, item[0]) self.tree.SetItemImage(newItem, self.fldridx,wx.TreeItemIcon_Normal) self.tree.SetItemImage(newItem, self.fldropenidx,wx.TreeItemIcon_Expanded) self.AddTreeNodes(newItem, item[1]) def GetItemText(self, item): if item: return self.tree.GetItemText(item) else: return "" app = wx.PySimpleApp(redirect=True) frame = TestFrame() frame.Show() app.MainLoop() Regards, Vedran

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Re: Memory Leak with Tkinter Canvas (Python 2.5 Win32)
by frikk Aug. 3, 2007

Aug. 3, 2007

On Aug 3, 2:26 am, "Hendrik van Rooyen" <m...(a)microcorp.co.za> wrote: > "frikk" <fr...l.com> wrote: > > 1. ....... Am I somehow leaving > > objects laying around that aren't being deleted? Is create_rectangle > > not the appropriate function to use?) > > Try calling the canvas's delete method with the old rectangle before > making a new one. > > - Hendrik Hey guys- Both of your suggestions were perfect - I was just unaware I was actually creating new *object* instead of drawing on the canvas. noob mistake. Thanks again! -Blaine

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distutils and development workflow
by Brian Blais Aug. 3, 2007

Aug. 3, 2007

Hello, I was wondering how people organize their projects while they are developing, and packaging with distutils. For example, so many python packages let me download, then do "sudo python setup.py install" and they are put in the right place. The developers of those packages, however, probably don't have their working copies in their /usr/lib/python25/lib/site-packages directory, so where do they put them so that they work during development, and they also work when packaged with distutils? So far, I've been hacking the python path (just for me), but it isn't portable, so I'd like to learn how I am supposed to do it. thanks, Brian Blais -- Brian Blais bblais(a)bryant.edu http://web.bryant.edu/~bblais

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How to create python script which can create csv we file with relationship
by Sonu Aug. 3, 2007

Aug. 3, 2007

hello, i need to create script that can create a csv file as i want for example i have two table in database that are person ,country if i want to create csv file to person,then wht to do ,, how to connect database,how to create csv of interrelated field eg :in person table :country_id (which is primary key of country table)

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Re: File Handling & TRY/EXCEPT
by Alex Popescu Aug. 3, 2007

Aug. 3, 2007

"Robert Rawlins - Think Blue" <robert.rawlins(a)thinkbluemedia.co.uk> wrote in news:33119.3366124809$1186129744@news.gmane.org: > This is a multipart message in MIME format. > > ------=_NextPart_000_00B0_01C7D5B0.02EB8BA0 > Hello Guys, > > > > I'm looking for some advice on how best to handle file read/write > errors with try/except as i'm a little vague on this, I have a small > memory leak in my app and I'm starting to think its generated by my > log file write. For an example of the function look below. > > > > def addAppLog(self, event): > > try: > > logfile = > open('/pblue/new/Logs/Application.csv','a') > > > > now = datetime.datetime.now() > > > > logstring = '%s,%s \n' % (event, str(now)) > > > > logfile.write(logstring) > > except: > > self.addAppLog(event) > > else: > > logfile.close() > Shouldn't you always close the file? So, a finally block with if logfile: logfile.close() ./alex -- .w( the_mindstorm )p.

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How to read information from tables in HTML?
by ZelluX Aug. 3, 2007

Aug. 3, 2007

Hi, all I'm confronted with some trouble when dealing with html files. The html files contain javascript and some information stored in tables. And it seems that they're not well-formed, when parsed with minidom, it will say "mismatched tag". Then how can i get information from those files? Is there any useful library for me? Many thanks ;-)

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Re: Error with Tkinter and tkMessageBox
by Fabio Z Tessitore Aug. 3, 2007

Aug. 3, 2007

Il Fri, 03 Aug 2007 12:38:09 +1000, John McMonagle ha scritto: > Fabio Z Tessitore wrote: >> I've tried to use Twm and SURPRISE! it works!!! >> >> Can you say why? How can I fix the prob with Gnome? >> >> Thanks > > I don't know why it doesn't work correctly on the version of gnome which > you are running (I run KDE). Perhaps the question needs to be posed to > a gnome group ? Thank you, very much, John. Best wishes. Bye

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suppress pop up windwo
by diego Aug. 3, 2007

Aug. 3, 2007

I'm automating the generation of PDF out of Excel sheets through win32com. I nearly accomplished everything I wanted, but one problem is still left: when I calling the print job through following code: xl.Selection.PrintOut(Copies=1,Collate=True) then a window pops up, where I have to input the name of the pdf I want to generate. Is there way to pass this filename to this window? (I'm using 'Jaws PDF Creator" as printer.) Thanks in advance for your help! Diego

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Re: replacement for execfile
by Steven D'Aprano Aug. 3, 2007

Aug. 3, 2007

On Sat, 28 Jul 2007 15:17:56 +0000, Alex Popescu wrote: > Hi all! > > From another thread (and the pointed PEP) I have found that execfile > will not be present in Py3k. So, I am wondering what will be its > replacement? Considering that most probably Py3k will keep eval and > exec, this will still be possible (indeed requiring manual loading of > the file string), so I would really appreciate some enlightning comments > on this. (1) Don't use eval, exec or execfile. (2) If you're an expert, don't use eval, exec or execfile. (3) If you're an expert, and are fully aware of the security risks, don't use eval, exec or execfile. (4) If you're an expert, and are fully aware of the security risks, and have a task that can only be solved by using eval, exec or execfile, find another solution. (5) If there really is no other solution, you haven't looked hard enough. (6) If you've looked REALLY hard, and can't find another solution, AND you're an expert and are fully aware of the security risks, THEN you can think about using eval, exec or execfile. > Background: > Basically this question is related to my learning process/working > project. In this, I have the need to allow the final user to provide a > configuration like script, but built using my API (and whatever other > normal Python code they want). I hope this is running on their own computer, not yours. If they're running it on a multi-user system, I hope they don't care about security, because they probably don't have any now. > For this, having execfile was a nice surprise Oh yes, I bet it was, in more ways than one. > as I was able to automatically expose the API (so the end user > doesn't need to bother about imports) and also easily execute it in the > context I wanted. Let's see that I understand you... you're expecting the users to write working Python code, but you think "import module" is too hard for them? Anyway, with all the disclaimers above, execfile is trivial: def execfile_(filename, globals_=None, locals_=None): if globals_ is None: globals_ = globals() if locals_ is None: locals_ = globals_ text = file(filename, 'r').read() exec text in globals_, locals_ -- Steven.

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Re: Bug in execfile?
by Peter Otten Aug. 3, 2007

Aug. 3, 2007

Fernando Perez wrote: > I'm finding the following behavior truly puzzling, but before I post a bug > report on the site, I'd rather be corrected if I'm just missing somethin > obvious. > > Consider the following trivial script: > > from math import sin, pi > wav = lambda k,x: sin(2*pi*k*x) > print wav(1,0.25) > The above runs just fine from a prompt, or even interactively via > execfile(). Now, consider calling it by using this instead: > > #!/usr/bin/env python > def runscript(fname): > """Run a file by calling execfile().""" > execfile(fname) > runscript('execfilebugscript.py') > If I run the above, calling the first script 'execfilebugscript.py' and > the second 'execfilebug.py', I get this: > NameError: global name 'sin' is not defined > I'm really, really puzzled by this. From reading the execfile() docs, I > had the hunch to change the call to: > > execfile(fname,{}) > > and now the problem disappears, so I can keep on working. If you execfile() a script names not known in the context of a function are looked up in the global namespace, but assignments set names in the local namespace. Consider execfile(filename) for a file x = 42 def f(): print x f() x and f are put into the local namespace, but x is not local to the function f and therefore looked up in f's globals. Now if you call execfile() in the global namespace of the client script the global and local namespace are identical >>> globals() is locals() True so x although put into the local namespace will still be found when looked up in the global namespace. That is the same situation as in your workaround execfile(filename, {}). This however is not the case if you call execfile() inside a function. Here global and local namespace differ. In your example, when you put another execfile() into the global namespace of the client script the sin() imported there is the only one that your wav() function sees. You can verify that by putting def sin(phi): return "I'm not math.sin()" instead of if 1: .... into execfilebug.py. Can the current behaviour of execfile() be changed into a more intuitive one? Not with only two namespaces. You'd probably need something similar to closures, and I don't think the necessary work would be worth the effort. Peter

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