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

Re: white space in expressions and argument lists
by John Salerno March 2, 2006

March 2, 2006

Fredrik Lundh wrote: > John Salerno wrote: > >> Guido listed a few rules that he'd like to see implemented in 2.5, and >> one of them was no more than one consecutive white space. I don't know >> how realistic some of those suggestions are, but they seem to be getting >> a little to restrictive. > > in his april 1st, 2005 paper ? > > http://www.artima.com/weblogs/viewpost.jsp?thread=101968 > > </F> > > > Yes, that's the one.

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looking for help about python-sane
by derek March 2, 2006

March 2, 2006

I m looking for help about python-sane, The follow sample code try to grab the image from the webcam through a /dev/video0 on linux, it works fine for the first 185 times, but it freeze the computer when i ~ 185, I dont know why? The computer become very busy when i > 160, very strange? I m using Ubuntu 5.10 Linux Thanks -----------------------code start------------------ #! /usr/bin/python import sane, time, Image def grabImage(_webcam): _webcam.mode='color' _webcam.start() img=_webcam.snap() return img for i in range(200): print 'i=', i sane.init() webcam = sane.open('v4l:/dev/video0') grabImage(webcam) webcam.close() sane.exit() time.sleep(1) ----------------------code end------------------- ---------------------output-------------------- i=0 i=1 i=2 .... i= 182 i= 183 i= 184 i= 185 Traceback (most recent call last): File "testSane.py", line 17, in ? grabImage(webcam) File "testSane.py", line 7, in grabImage _webcam.start() File "/usr/lib/python2.4/site-packages/sane.py", line 201, in start return self.dev.start() _sane.error: Error during device I/O

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Re: Pyserial never read
by luca72 March 2, 2006

March 2, 2006

Hello i how can set with pyserial the following data? > byte delay= 40000 > serial control line: > dtr = high > rts= low Thanks Luca

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filename variables
by cyborg4＠walla.co.il March 2, 2006

March 2, 2006

If in Windows XP I use: openstring= "test.py >foo.txt" os.system(openstring) it works. But if I use: file1='foo.txt' openstring= "test.py >"+file1 It gives an IOError about no such file or directory as \\mydidr\\foo.txt What does it mean ?

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Creating a text adventure
by DannyB March 2, 2006

March 2, 2006

I am in the process of learning Python. I have the basics down and I now want to test my abilitiy to use them in a (very) small project. I have the idea for a (very) small text based game mapped out in my head. It will include two rooms, random creatures (amounts and type) in each room and random chests in each room. The basic "battle system" giving the user the ability to run or attack. Creatures will have hp, attack, defense, and name attributes. The player will have the same. Treasure chests will be populated with random treasure. I'm not adding anything fancy - like I said its just a small project to gell my newfound knowledge. What I am looking for is a resource (preferably via the web) that will give me an idea of how to set things up. I'm not looking to add any libraries to the project (so no pygame or livewires). I'm just using 2.4.2. I'll add other things when I feel I have 'mastered' the fundamental concepts of Python. Thanks for your help!! :)

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RE: why? [win32com/WMI]
by Tim Golden March 2, 2006

March 2, 2006

[Sergey] | Yes, I had run it. | | And, just now I updated python, pythonwin and wmi.py to | latest version. And got: | | >>> a=wmi.WMI() | >>> a.Win32_Process.Create(CommandLine="notepad.exe") # | --- it works | >>> a.Win32_Process.new().Create(CommandLine="notepad.exe") | # it still fail | Traceback (most recent call last): | File "<stdin>", line 1, in ? | File "wmi.py", line 361, in __call__ | handle_com_error (error_info) | File "wmi.py", line 208, in handle_com_error | raise x_wmi, "\n".join (exception_string) | wmi.x_wmi: -0x7ffdfff7 - Exception occurred. | Error in: SWbemObjectEx | -0x7ffbefff - Generic failure | | Without 'new' everything works. And does everything I need from it. Yes, I think the simple answer is: don't use .new unless you're sure you need to. When I wrote the wmi module originally, I misunderstood the use of SpawnInstance_ (which is the method behind .new). To create a process, or a share, or anything which has a .Create method, use the .Create method. Use .new only for things like Win32_ProcessStartup, as in this example here: http://timgolden.me.uk/python/wmi_cookbook.html#run-process-minimised where the instance is created only to pass as a parameter into the .Create method of the Win32_Process. I've updated the module docstring for the next release, and have changed the cookbook examples which used .new where they shouldn't have, so thanks for highlighting the deficiency. | And, I have another question. Is there way to access WMI from linux? Not using this module, which is very Windows-specific; there was some work recently on WBEM (which is the industry standard behind WMI) on Linux, but I've not tried to use it myself: http://pywbem.sourceforge.net/ TJG ________________________________________________________________________ This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

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Re: why? [win32com/WMI]
by Sergey March 2, 2006

March 2, 2006

"Tim Golden" <tim.golden(a)viacom-outdoor.co.uk> wrote in message news:mailman.2606.1141304051.27775.python-list@python.org... [Sergey] >| >import wmi >| >c = wmi.WMI (computer="srv", user="Admin(a)zzz.ru", password="****") >| >pid, retval = c.Win32_Process.Create (CommandLine="notepad.exe") >| >| Wonderful... It works. >Also, in case you haven't, have a look at the cookbook page: >http://timgolden.me.uk/python/wmi_cookbook.html >which has several useful examples. Yes, I had run it. And, just now I updated python, pythonwin and wmi.py to latest version. And got: >>> a=wmi.WMI() >>> a.Win32_Process.Create(CommandLine="notepad.exe") # --- it works >>> a.Win32_Process.new().Create(CommandLine="notepad.exe") # it still fail Traceback (most recent call last): File "<stdin>", line 1, in ? File "wmi.py", line 361, in __call__ handle_com_error (error_info) File "wmi.py", line 208, in handle_com_error raise x_wmi, "\n".join (exception_string) wmi.x_wmi: -0x7ffdfff7 - Exception occurred. Error in: SWbemObjectEx -0x7ffbefff - Generic failure Without 'new' everything works. And does everything I need from it. And, I have another question. Is there way to access WMI from linux?

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Re: Removing .DS_Store files from mac folders
by Ben Cartwright March 2, 2006

March 2, 2006

David Pratt wrote: > OSError: [Errno 2] No such file or directory: '.DS_Store' Ah. You didn't mention a traceback earlier, so I assumed the code was executing but you didn't see the file being removed. > >> for f in file_names: > >> current_file = os.path.basename(f) > >> print 'Current File: %s' % current_file > >> > >> # Clean mac .DS_Store > >> if current_file == '.DS_Store': > >> print 'a DS_Store item encountered' > >> os.remove(f) How are you creating file_names? More importantly, does it contain a path (either absolute or relative to the current working directory)? If not, you need an os.path.join, e.g.: import os for root_path, dir_names, file_names in os.walk('.'): # file_names as generated by os.walk contains file # names only (no path) for f in file_names: if f == '.DS_Store': full_path = os.path.join(root_path, f) os.remove(full_path) --Ben

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logging to a text widget
by Alexandre Guimond March 2, 2006

March 2, 2006

Hi. I'm using the logging package. I would like to send my log messages to a Text widget creating using Tkinter. I was wondering if there was a logging handler class that would do this. It seems that the standard handlers do not support this. Has anyone tried to do this? Thx for any help, alex

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RE: why? [win32com/WMI]
by Tim Golden March 2, 2006

March 2, 2006

[Sergey] | "Tim Golden" <tim.golden(a)viacom-outdoor.co.uk> wrote in | message news:mailman.2569.1141231029.27775.python-list@python.org... | [Sergey] | | >import wmi | >c = wmi.WMI (computer="srv", user="Admin(a)zzz.ru", password="****") | >pid, retval = c.Win32_Process.Create (CommandLine="notepad.exe") | | Wonderful... It works. Also, in case you haven't, have a look at the cookbook page: http://timgolden.me.uk/python/wmi_cookbook.html which has several useful examples. TJG ________________________________________________________________________ This e-mail has been scanned for all viruses by Star. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

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