🌐 Mailman 3 April 2013 - Tutor - python.org

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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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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getUncPath(mappedDrive)
by Albert-Jan Roskam Jan. 30, 2014

Jan. 30, 2014

Hi, Is there a function that takes a file path with a mapped drive (z:\blah) and returns the associated UNC path (\\server\share\ding\dang\dong\blah)? I looked in os.path, but it doesn't seem to have this. The link below seems to be a solution (code in the bottom of the page), but I can't install win32com.client in the office :-( Is there any built-in function? http://stackoverflow.com/questions/2244767/python-check-network-map Thanks! 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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How to unpack python-dateutil-2.0.tar.gz
by Richard D. Moores Sept. 5, 2013

Sept. 5, 2013

Python 3.2.3 64 bit MS Windows 7 Home Premium 64-bit SP1 I see python-dateutil recommended here from time to time, so I thought I'd try it out. I downloaded python-dateutil-2.1.tar.gz from http://pypi.python.org/pypi/python-dateutil but have forgotten how to unpack a .tar.gz file. Please remind me. Thanks, Dick Moores

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using ranges with argparse()
by Kurt Lieber July 19, 2013

July 19, 2013

Hi -- brand new to python, but trying to write a simple script that takes command line arguments. One of the arguments needs to test if a value is a) an integer and b) within a stated range. I currently have: parser.add_argument("-f", "--floor", default=6000, help="floor is the minimum amount of bonus points.",type=int, choices=range(5995, 6001)) This works, but when the user enters an out of bounds value, the help message is unfriendly: % ./bonus.py -f 10000 usage: bonus.py [-h] [-f {5995,5996,5997,5998,5999,6000}] MAM-bonus.py: error: argument -f/--floor: invalid choice: 10000 (choose from 5995, 5996, 5997, 5998, 5999, 6000) The problem is my default range is actually 0,10000 -- I changed it above for brevity's sake. So in the real world, it floods the screen to the point where it's unreadable. I can suppress the whole thing with argparse.SUPPRESS, but then I'm left with no help message at all. Is there a way to suppress the "(choose from 1,2,3,etc.)" part of the help message? Or a cleaner/different way altogether to accomplish the same thing? thanks.

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Biggest Fake Conference in Computer Science
by eliswilson＠hushmail.com April 30, 2013

April 30, 2013

Biggest Fake Conference in Computer Science We are researchers from different parts of the world and conducted a study on the world’s biggest bogus computer science conference WORLDCOMP http://sites.google.com/site/worlddump1 organized by Prof. Hamid Arabnia from University of Georgia, USA. We submitted a fake paper to WORLDCOMP 2011 and again (the same paper with a modified title) to WORLDCOMP 2012. This paper had numerous fundamental mistakes. Sample statements from that paper include: (1). Binary logic is fuzzy logic and vice versa (2). Pascal developed fuzzy logic (3). Object oriented languages do not exhibit any polymorphism or inheritance (4). TCP and IP are synonyms and are part of OSI model (5). Distributed systems deal with only one computer (6). Laptop is an example for a super computer (7). Operating system is an example for computer hardware Also, our paper did not express any conceptual meaning. However, it was accepted both the times without any modifications (and without any reviews) and we were invited to submit the final paper and a payment of $500+ fee to present the paper. We decided to use the fee for better purposes than making Prof. Hamid Arabnia richer. After that, we received few reminders from WORLDCOMP to pay the fee but we never responded. This fake paper is different from the two fake papers already published (see https://sites.google.com/site/worlddump4 for details) in WORLDCOMP. We MUST say that you should look at the above website if you have any thoughts of participating in WORLDCOMP. DBLP and other indexing agencies have stopped indexing WORLDCOMP’s proceedings since 2011 due to its fakeness. See http://www.informatik.uni-trier.de/~ley/db/conf/icai/index.html for of one of the conferences of WORLDCOMP and notice that there is no listing after 2010. See Section 2 of http://sites.google.com/site/dumpconf for comments from well-known researchers about WORLDCOMP. The status of your WORLDCOMP papers can be changed from scientific to other (i.e., junk or non-technical) at any time. Better not to have a paper than having it in WORLDCOMP and spoil the resume and peace of mind forever! Our study revealed that WORLDCOMP is money making business, using University of Georgia mask, for Prof. Hamid Arabnia. He is throwing out a small chunk of that money (around 20 dollars per paper published in WORLDCOMP’s proceedings) to his puppet (Mr. Ashu Solo or A.M.G. Solo) who publicizes WORLDCOMP and also defends it at various forums, using fake/anonymous names. The puppet uses fake names and defames other conferences to divert traffic to WORLDCOMP. He also makes anonymous phone calls and threatens the critiques of WORLDCOMP (See Item 7 of Section 5 of above website). That is, the puppet does all his best to get a maximum number of papers published at WORLDCOMP to get more money into his (and Prof. Hamid Arabnia’s) pockets. Prof. Hamid Arabnia makes a lot of tricks. For example, he appeared in a newspaper to fool the public, claiming him a victim of cyber-attack (see Item 8 in Section 5 of above website). Monte Carlo Resort (the venue of WORLDCOMP for more than 10 years, until 2012) has refused to provide the venue for WORLDCOMP’13 because of the fears of their image being tarnished due to WORLDCOMP’s fraudulent activities. That is why WORLDCOMP’13 is taking place at a different resort. WORLDCOMP will not be held after 2013. The draft paper submission deadline is over but still there are no committee members, no reviewers, and there is no conference Chairman. The only contact details available on WORLDCOMP’s website is just an email address! We ask Prof. Hamid Arabnia to publish all reviews for all the papers (after blocking identifiable details) since 2000 conference. Reveal the names and affiliations of all the reviewers (for each year) and how many papers each reviewer had reviewed on average. We also ask him to look at the Open Challenge (Section 6) at https://sites.google.com/site/moneycomp1 and respond if he has any professional values. Sorry for posting to multiple lists. Spreading the word is the only way to stop this bogus conference. Please forward this message to other mailing lists and people. We are shocked with Prof. Hamid Arabnia and his puppet’s activities at http://worldcomp-fake-bogus.blogspot.com Search Google using the keyword worldcomp fake for additional links.

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New book: Data Structures and Algorithms in Python. Opinions?
by boB Stepp April 30, 2013

April 30, 2013

The following textbook was just released yesterday on Amazon: Data Structures and Algorithms in Python Michael T. Goodrich, Roberto Tamassia, Michael H. Goldwasser March 2013, ©2013 I was wondering if anyone was familiar with the earlier "market leading" textbooks in C++ and Java with essentially the same title and can tell me if I have made a good purchase or not. This is a topic I need to look into at some point and, if nothing else, it is another Python-based book! Cheers! boB

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Re: [Tutor] Tutor Digest, Vol 110, Issue 117
by Jim Mooney April 30, 2013

April 30, 2013

> In py3.x, iteritems was replaced by .items() Interesting, since iteritems was in my book, which was "updated" for Py33. I guess the moral is you shouldn't trust an author 100% ;') I must admit, iteritems did seem awkward and annoying so I'm glad it's dropped. Jim

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Loop not executing.
by Ajin Abraham April 30, 2013

April 30, 2013

Hi, I am using a python snippet that will send some data after the data length reaches a particular length. So it is supposed to loop and periodically sends the data to an email. i am using smtplib to send mail. i will attach the code snippet. def email(): global data if len(data)>50: ts = datetime.datetime.now() SERVER = "smtp.gmail.com" #Specify Server Here PORT = "587" #Specify Port Here USER="ajin(a)gmail.com"#Specify Username Here PASS="mypassword"#Specify Password Here FROM = USER#From address is taken from username TO = ["ajin(a)gmail.com"] #Specify to address.Use comma if more than one to address is needed. SUBJECT = " Data at: "+str(ts) MESSAGE = data # formating final email body message = """\ From: %s To: %s Subject: %s %s """ % (FROM, ", ".join(TO), SUBJECT, MESSAGE) server = smtplib.SMTP() server.connect(SERVER,PORT) server.starttls() server.login(USER,PASS) server.sendmail(FROM, TO, message) server.quit() print 'Log Send!!' data='' return True This function email() is called periodically and is in a loop. the program just execute once and keep running in the loop without exiting but the data is mailed only once. i will also attache the Traceback details: Traceback (most recent call last): File "c:\Python27\lib\site-packages\pyHook\HookManager.py", line 351, in Keybo ardSwitch return func(event) File "key2.py", line 132, in keypressed email() File "key2.py", line 83, in email server = smtplib.SMTP() File "c:\Python27\lib\smtplib.py", line 258, in __init__ fqdn = socket.getfqdn() File "c:\Python27\lib\socket.py", line 142, in getfqdn for name in aliases: TypeError: an integer is required Log Send!! I believe someone can help on this matter. Regards, Ajin Abraham Information Security Enthusiast. www.ajinabraham.com | www.defconkerala.org www.keralacyberforce.in | +91-9633325997

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Associate decimal values with an integer range
by sparkle Plenty April 30, 2013

April 30, 2013

Hi, I need some hints on where to start solving this problem. I have to interpret a one-byte floating point number as a range between 0 and 240. This is for a gui that controls an amplifier. I am getting a value such as 0.8367 from a fader control, and my Python is interpreting it as either a 0 or 1. I need to define this number to Python as an integer value between 0 and 240. I know that in hex I have the potential for numbers from 0 to 255 within my one byte of available space, and the value will be sent from gui to amp and back as a packed one-byte number. I have looked at the math module and so far, I am still stuck. Alas, business calc was a long time ago, and I never studied logarithms. I expect the answer would be easier to find if I had more math. I welcome all assistance. Thank you.

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