Re: [Tutor] python programmin problem
Thank you all for your answers. I do not have a teacher or any body else who could guide me. I have taken all python classes offered in my area and many on line. The question is one of questions asked by interviews for a qa position that also does some automation with python. Im just trying to learn so that I could get a job. Nobody offers manual qa jobs anymore so I am working on updating my skills. -- Original Message -- From: Alan Gauld via Tutor To: tutor@python.org Subject: Re: [Tutor] python programmin problem Date: Mon, 25 Jul 2016 00:21:10 +0100 On 24/07/16 20:58, Danny Yoo wrote: > Please: I strongly encourage you to talk with your professor or study > group: it really does sound like this is the first time you've seen these > kinds of concepts. I agree with Danny, you should talk to your teacher. I suspect the teacher may have set the problem without appreciating the full extent of the complexity involved. It certainly doesn't seem like you are properly equipped to solve it. Maybe he/she can provide a simpler subset of problem. Of course this assumes you have a teacher to ask? Your original post doesn't state where you found the problem, it may be you just picked it up on a web site or book and have unwittingly bitten off more than you are ready to chew just now? It also depends a bit on whether the intent is to learn about Python programming or about algorithms. If its the latter then you might just want to ask on a different (math based) forum. But if its Python you are interested in then find an easier problem for now. Otherwise you will lose sight of the Python problem in trying to solve the math one. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor Affordable Wireless Plans Set up is easy. Get online in minutes. Starting at only $9.95 per month! www.netzero.net?refcd=nzmem0216 ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] (no subject)
Hi Dilip, This error has nothing to do with Python or it's versions. OS does not have the support for these unicode characters. You need to fix that. > filename = "මේක තියෙන්නේ සිංහලෙන්.txt" > Why can't I get Python to print the name out? > > filename = "මේක තියෙන්නේ සිංහලෙන්.txt" > Unsupported characters in input > -- regards Ram ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] (no subject)
On Fri, Jul 22, 2016 at 01:08:02PM +0530, DiliupG wrote: > I am using Python 2.7.12 on Windows 10 Two errors: - first error is that Unicode strings in Python 2 need to be written as unicode objects, with a "u" prefix in the delimiter: # ASCII byte string: "Hello World" # Unicode string: u"මේක ත" ASCII strings "..." cannot give you the right results except by accident. You must use unicode strings u"..." - Second possible problem: using Windows, which may not support the characters you are trying to use. I don't know -- try it and see. If it still doesn't work, then blame Windows. I know that Linux and Mac OS X both use UTF-8 for filenames, and so support all of Unicode. But Windows, I'm not sure. It might be localised to only use Latin-1 (Western European) or similar. -- Steve ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] (no subject)
On Fri, Jul 22, 2016 at 7:38 AM, DiliupG wrote: > I am using Python 2.7.12 on Windows 10 > > filename = u"මේක තියෙන්නේ සිංහලෙන්.txt" > Unsupported characters in input That error message is from IDLE. I'm not an expert with IDLE, so I don't know what the following hack potentially breaks, but it does allow entering the above Unicode filename in the interactive interpreter. Edit "Python27\Lib\idlelib\IOBinding.py". Look for the following section on line 34: if sys.platform == 'win32': # On Windows, we could use "mbcs". However, to give the user # a portable encoding name, we need to find the code page try: encoding = locale.getdefaultlocale()[1] codecs.lookup(encoding) except LookupError: pass Replace the encoding value with "utf-8" as follows: # encoding = locale.getdefaultlocale()[1] encoding = "utf-8" When you restart IDLE, you should see that sys.stdin.encoding is now "utf-8". IOBinding.encoding is used by ModifiedInterpreter.runsource in PyShell.py. When the encoding is UTF-8, it passes the Unicode source string directly to InteractiveInterpreter.runsource, where it gets compiled using the built-in compile() function. Note that IDLE uses the Tk GUI toolkit, which -- at least with Python Tkinter on Windows -- is limited to the first 65,536 Unicode characters, i.e the Basic Multilingual Plane. The BMP includes Sinhalese, so your filename string is fine. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] (no subject)
On Mon, Jul 25, 2016 at 10:28 AM, Steven D'Aprano wrote: > I know that Linux and Mac OS X both use UTF-8 for filenames, and so support > all > of Unicode. But Windows, I'm not sure. It might be localised to only use > Latin-1 > (Western European) or similar. Windows filesystems (e.g. NTFS, ReFS, UDF, exFAT, FAT32) use Unicode [1], i.e. UTF-16, as does the Windows wide-character API. Using 16-bit wchar_t strings is a problem for C standard functions such as fopen, which require 8-bit null-terminated strings, so the Windows C runtime also supports wide-character alternatives such as _wfopen. Python's os and io functions use Windows wide-character APIs for unicode arguments, even in 2.x. Unfortunately some 2.x modules such as subprocess use only the 8-bit API (e.g. 2.x Popen calls CreateProcessA instead of CreateProcessW). [1]: https://msdn.microsoft.com/en-us/library/ee681827#limits ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
[Tutor] installing openpyxl, problem still n o t solved
Dear Experts, I was too optimistic. Module jdcal ist indeed installed. However, I get another trace back concerning et_xmlfile even after I downloaded and saved it the same way as I did with jdcal. Since I havent got any responses to my previous calls for help my problem might be too unimportant - I just try it another time: Why got jdcal accepted and et_xmlfile not ? I must say I unzipped both files directly in C:\Users\marcus\AppData\local\Programs\Python\Python35\Lib\site-packages. The command >pip install was rejected as SyntaxError : invalid syntax. Thanks for any kind of help, Marcus. >>> import openpyxl Traceback (most recent call last): File "", line 1, in import openpyxl File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\__init__.py", line 29, in from openpyxl.workbook import Workbook File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\workbook\__init__.py", line 5, in from .workbook import Workbook File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\workbook\workbook.py", line 8, in from openpyxl.worksheet import Worksheet File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\worksheet\__init__.py", line 4, in from .worksheet import Worksheet File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\worksheet\worksheet.py", line 34, in from openpyxl.cell import Cell File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\cell\__init__.py", line 4, in from .cell import Cell, WriteOnlyCell File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\cell\cell.py", line 44, in from openpyxl.styles import numbers, is_date_format File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\styles\__init__.py", line 5, in from .alignment import Alignment File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\styles\alignment.py", line 6, in from openpyxl.descriptors import Bool, MinMax, Min, Alias, NoneSet File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\descriptors\__init__.py", line 5, in from .sequence import Sequence File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\descriptors\sequence.py", line 5, in from openpyxl.xml.functions import Element File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\xml\functions.py", line 51, in from et_xmlfile import xmlfile ImportError: No module named 'et_xmlfile' >>> Dear Experts, problem solved, dont bother, Marcus. . Dear Experts, following instructions in a youtube video I thought I finally succeded to install openpyxl. However I got the traceback below: >>> import openpyxl Traceback (most recent call last): File "", line 1, in import openpyxl File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\__init__.py", line 29, in from openpyxl.workbook import Workbook File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\workbook\__init__.py", line 5, in from .workbook import Workbook File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\workbook\workbook.py", line 8, in from openpyxl.worksheet import Worksheet File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\worksheet\__init__.py", line 4, in from .worksheet import Worksheet File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\worksheet\worksheet.py", line 34, in from openpyxl.cell import Cell File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\cell\__init__.py", line 4, in from .cell import Cell, WriteOnlyCell File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\cell\cell.py", line 30, in from openpyxl.utils.datetime import ( File "C:\Users\marcus\AppData\Local\Programs\Python\Python35\lib\site-packages\op enpyxl\utils\datetime.py", line 13, in from jdcal import ( ImportError: No module named 'jdcal' How do I get jdcal ? Tanks everybody for help, Marcus. .. dear Experts, could someone please tell me what exactly I have to type in my a) Python 35 command line or b) desktopcomputer ( W10, 64bit)-command line in ordert to install openpyxl which I downloaded in C:\Users\marcus\Downloads on my computer. I have used all kinds of commands with pip install at the end, all unsuccessful. Thanks for help. Marcus. --- Diese E-Mail wurd
Re: [Tutor] installing openpyxl, problem still n o t solved
On 25/07/16 19:59, marcus lütolf wrote: > The command >pip install was rejected as SyntaxError : invalid syntax. > Thanks for any kind of help, Marcus. If you get a syntax error that suggests you are running it from the Python >>> prompt. That's wrong. You should run pip from the command prompt of your OS. -- Alan G Author of the Learn to Program web site http://www.alan-g.me.uk/ http://www.amazon.com/author/alan_gauld Follow my photo-blog on Flickr at: http://www.flickr.com/photos/alangauldphotos ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] installing openpyxl, problem still n o t solved
Hello Marcus, I'm afraid it is very difficult for me to understand your email. Your email contains weird control characters as shown here: On Mon, Jul 25, 2016 at 08:59:50PM +0200, marcus lütolf wrote: > Dear Experts, > > I was too optimistic. Module jdcal ist indeed installed. > However, I get another trace back concerning et_xmlfile even after I > downloaded and saved it the same way as I did with jdcal. I think the reason is that your email program is setting the wrong encoding: your email claims to be Latin-1 but obviously isn't. I think this may be because you are using Microsoft Word as the email editor, and inserting "smart quotes", probably ‘’. Smart quotes are not part of Latin-1, but Outlook is (wrongly!) setting a header saying that it is using Latin-1. You should be able to fix this by: - turning of Smart Quotes and using ordinary '' or "" quotes instead of curly quotes ‘’ or “” - teaching Outlook to use UTF-8 instead of the cp1252 encoding - or at least have Outlook say it is using cp1252 instead of wrongly claiming to be using Latin-1 That will help us be able to read your emails. Another problem is that I actually don't understand what you are saying. First you say that you were too optimistic, at the beginning of the email. Then in the middle of the email you say you have solved your problem, and we should not bother. Then at the beginning you say that you need help. None of these parts are quoted: > Quoted text Not quoted text so it all looks like part of the same email, which is confusing: have you solved the problem? Not solved it? If we understood your questions better, perhaps we could answer them. > Since I havent got any responses to my previous calls for help my problem > might be too unimportant - I just try it another time: > > Why got jdcal accepted and et_xmlfile not ? > I must say I unzipped both files directly in > C:\Users\marcus\AppData\local\Programs\Python\Python35\Lib\site-packages. Are you talking about this? https://pypi.python.org/pypi/et_xmlfile You should unzip it into your home directory, and then run the setup.py file in the top directory. I think the command will be: python setup.py install as administrator or root superuser. On Linux/Mac you may be able to use: sudo python setup.py install > The command >pip install was rejected as SyntaxError : invalid syntax. > Thanks for any kind of help, Marcus. You need to run pip from the operating system's shell, not from inside Python. Python's default prompt is ">>>". Most shells use "$" or "%" as the prompt. -- Steve ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] (no subject)
On Tue, Jul 26, 2016 at 4:39 AM, DiliupG wrote: > I am reading in a list of file names with the following code. > > def get_filelist(self): > "" > app = QtGui.QApplication(sys.argv) > a = QtGui.QFileDialog.getOpenFileNames() > > filelist = [] > if a: > for name in a: > a = unicode(name) > > filelist.append(a) > > return filelist > > mainprg.filelist = mainprg.get_filelist() > > filelist = mainprg.filelist > > for name in filelist: > print name < THIS IS WHERE THE PROBLEM IS This is an output problem, which is unrelated to the IDLE input error that you initially reported. But IDLE isn't (at least shouldn't be) used for deployed applications. It's a development environment. Generally if you're using Qt then you're not creating a console application that prints to stdout, but instead the program outputs text to a Qt widget such as a QTextEdit. That said, if you need to print Unicode text to the Windows console, for whatever reason (maybe debugging), then pip install and enable the win_unicode_console module. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
