Mailman 3 February 2014 - Tutor

Scripting Calligra sheets with Python
by Jim Byrnes Jan. 31, 2022

Jan. 31, 2022

I am trying to script Calligra Sheets (formerly KSpread) with python. I have gotten some of the included example scripts to run so I know python scripting is running. I found the following snippet on their website: import KSpread sheet = KSpread.view().sheet() # swap text of B5 and C6 t1 = sheet.text("B5") t2 = sheet.text(6,3) sheet.setText("B5", t2) sheet.setText(6, 3, t1) # swap value of D7 and E8 v1 = sheet.value("D7") v2 = sheet.value(8,5) sheet.setValue("D7", v2) sheet.setValue(8, 5, v1) Error: 'str' object has no attribute 'text' File "file:///usr/share/kde4/apps/sheets/scripts/extensions/myswap.py", line 4, in <module> This error message appeared in a dialog box. I've taught myself some Python but I don't understand what is happening here. Shouldn't t1 be a sheet object? What would cause it to be a str instead? Thanks, Jim

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HELP I need help with Python Setup or to reach Marilyn Davis
by carolynn fryer July 12, 2015

July 12, 2015

I am at the point where I am just spinning my wheels. I tried to get help with logging on but so far I am just getting frustrated. I have a problem that I brought up the first night in class but couldn't seem to get help then. Sorry if I am at the point where I am totally frustrated and I need HELP. PLEASE. I did not turn in homework because of the fact that I can not run anything without getting a syntax error. I tried setting up a path for python environment variables and a few other things but I am getting no where. Can you give me some suggestions why I can't run anything. I have windows 7 on my home computer, and windows 8 on my laptop and they are both doing the same thing. So it has to be something I am doing or not doing. I really do not like being behind/late in anything so that is making me even more frustrated. I suppose I am even more frustrated and afraid to ask because I kink of got a slap in the face last time I took a course here and the instructor would not help. But that was a way different situation, I simply could not understand his English and then he told me he did not have any patience. Excuse me but I just about died when he, an INSTRUCTOR told me that. I worked at Stanford for 25 years and to hear an instructor say those words was unthinkable. Anyway you can maybe understand my reluctance to ask for help but I need help. Any suggestions?? When I use one of the computers at school everything works just fine. Except I can not get my own computer to log on when I am there. So again that is why I said it is my system and something in my set up that I don't have. Sorry for the long note, I was just letting out a little frustration. LOL Thx for any suggestions, Carolynn Fryer ps: I know this is not the proper way to get ahold of you but I could not find nor have time to find any other way. The UCSC system is not very user friendly

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Wave module
by Alex Krycek Feb. 12, 2015

Feb. 12, 2015

Hello, I'm trying to join two .wav files with the wave module. But when I try to use wave.open(filename, "rb") I receive the following error: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "F:\PortablePython1.0\lib\wave.py", line 483, in open return Wave_read(f) File "F:\PortablePython1.0\lib\wave.py", line 162, in __init__ self.initfp(f) File "F:\PortablePython1.0\lib\wave.py", line 143, in initfp self._read_fmt_chunk(chunk) File "F:\PortablePython1.0\lib\wave.py", line 264, in _read_fmt_chunk raise Error, 'unknown format: %r' % (wFormatTag,) wave.Error: unknown format: 85 I read somewhere that there are various wave formats, only some supported by Python. Is this true? If so, is there any way I can convert my wave files into a supported kind? Thanks!

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help me
by hind fathallah March 10, 2014

March 10, 2014

hi can you answer this question for me plz Modify the Guess My number program from this chapter so that the player has only five guesses. If the player run out of guess, the program should end the game and display an appropriately chastising message.

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When to use multiprocessing Managers?
by James Chapman March 3, 2014

March 3, 2014

Hello tutors I'm curious about managers and when to use them. For example, I see they offer a Queue() for sharing a Q between processes, but if I create a Q in the parent process and pass it down to child processes, then they can put messages into that Q just fine, and I presume the same thing for other objects available under the managers package. So unless the other process is on a different machine, is there a reason to use a manager? Does anyone have any use case examples or snippets I could look at even? Thanks in advance James

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win32api & win32gui help
by Joe Bennett Feb. 28, 2014

Feb. 28, 2014

Looking for a good simple remedial course on getting my python script to talk to a Windows program. The author of the windows program has documented the api here: http://www.logger32.net/help/Logger32/Using%20the%20Logger32%20External%20I… I'm struggling to understand how to implement the messages with win32api/ gui... I've taken a stab at it here with my goal being that I just want to 'register' with the program and receive the response from it. So far I'm still scratching my head over this... I get a response for 'hwnd' but have not been able to get any confirmation that RegisterMessage, PostMessage and GetMessage are working, configured properly or...what... Running this all in WIN7 with ActivePython 2.6.6... import win32api import win32gui hwnd = win32gui.FindWindowEx(0, 0, 0, "Logger32") print "hwnd= ", hwnd message = win32api.RegisterWindowMessage("Logger32 3") win32api.PostMessage(hwnd,message,1,99999) test = win32gui.GetMessage(hwnd,0,0) print "GetMessage: ", test Thanks!!!! -Joe KA3NAM

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running unittests on multiple OS, including non-Posix
by Albert-Jan Roskam Feb. 28, 2014

Feb. 28, 2014

Hi, I would like to run my unittests (--> nose) on multiple platforms. I also would like to test different python versions and implementations on each platform (--> tox [2]). These platforms also include Windows, so Travis CI or Docker is not an option. I was thinking about using Vagrant [3] to fire up VirtualBox [4] VMs for each platform-to-be-tested, then either (a) fire up nose or tox through SSH or (b) (the easy way) prepare each VM such that nose/tox is fire up right when the OS starts (ie., edit .bashrc, autoexit.bat or whatever it is called for the OS at hand. But this all feels like reinventing the wheel. Can you recommend a package or strategy to use? [1] https://pypi.python.org/pypi/nose/ [2] https://pypi.python.org/pypi/tox [3] http://www.vagrantbox.es/ [4] https://www.virtualbox.org/ Regards, Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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Reg: How to read string from a static text box from a GUI made in VC++
by Shweta Kaushik Feb. 28, 2014

Feb. 28, 2014

Hi, I am writing a script to automate GUI which is designed in VC++. How to read strings from a static box using python(pywinauton). Can you provide function details? Thanks & Regards, Shweta Kaushik HCL Technologies Ltd. Mob: +91 9500042351 Extn: 51904 ::DISCLAIMER:: ---------------------------------------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects. ----------------------------------------------------------------------------------------------------------------------------------------------------

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Re: [Tutor] Python help
by James Chapman Feb. 28, 2014

Feb. 28, 2014

The answer lies in this page: http://docs.python.org/3.3/library/stdtypes.html#string-methods -- James On 28 February 2014 11:44, James Chapman <james(a)uplinkzero.com> wrote: > The answer lies in this page: > http://docs.python.org/3.3/library/stdtypes.html#string-methods > > > -- > James > > > On 28 February 2014 08:15, Ben Finney <ben+python(a)benfinney.id.au> wrote: >> Tone Lite <tonelitebeats(a)gmail.com> writes: >> >>> I am having trouble coming up with a solution to this exercise and any >>> help would be appreciated, thanks! I have attached the code below. >> >> The code you present appears to be the exercise. Are you asking for >> someone to write the solution for you? That isn't what we do here. We'll >> help you, but that doesn't mean we'll do your work for you. >> >> Please show us what you've tried, describe what it should be doing, and >> what is happening instead. If there is an error, please also show the >> complete error output. >> >> -- >> \ “He who allows oppression, shares the crime.” —Erasmus Darwin, | >> `\ grandfather of Charles Darwin | >> _o__) | >> Ben Finney >> >> _______________________________________________ >> Tutor maillist - Tutor(a)python.org >> To unsubscribe or change subscription options: >> https://mail.python.org/mailman/listinfo/tutor

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subprocess.call list vs. str argument
by Albert-Jan Roskam Feb. 28, 2014

Feb. 28, 2014

Hi, In the code below, cmd1 and cmd2 are equivalent, as in: " ".join(cmd1) == cmd2. But the first example returns a code 2, whereas the second runs successfully. What is the difference? I prefer using a list as it looks a little cleaner. Btw, shell=True is needed here. # Python 2.7.3 (default, Jan 2 2013, 13:56:14) [GCC 4.7.2] on linux2 import subprocess #1# returns retcode 2 (whatever error that maybe) title, author, version = "title", "author", "1.0.0" output_dir, input_dir = '/tmp/input', '/tmp/output' cmd1 = [r'sphinx-apidoc', r'-f -F', r'-H', '"%s"' % title, r'-A', '"%s"' % author, r'-V', '"%s"' % version, r'-o', output_dir, input_dir] retcode = subprocess.call(cmd1, shell=True) assert not retcode, retcode #2# returns retcode 0 (succes) cmd2 = (r'sphinx-apidoc ' r'-f -F ' r'-H "%(title)s" ' r'-A "%(author)s" ' r'-V "%(version)s" ' r'-o %(output_dir)s %(input_dir)s') % locals() retcode = subprocess.call(cmd2, shell=True) assert not retcode, retcode # no AssertionError assert " ".join(cmd1) == cmd2 Thanks in advance! Regards, Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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