🌐 Mailman 3 December 2014 - Python-list - python.org

Re: suggestions for VIN parsing
by Denis McMahon Dec. 28, 2014

Dec. 28, 2014

On Thu, 25 Dec 2014 17:02:33 -0700, Vincent Davis wrote: > I would like to parse the VIN, frame and engine numbers found on this > page (below). First of all you need to define the number of different patterns that are possible: eg: H + 3-5 digits -> twins Unit 350cc & 500cc '57 - '69 3 (or more?) digits + N -> twins Pre-Unit 500cc & 650cc '50 3-5 digits + NA -> twins Pre-Unit 500cc & 650cc '51 - '52 4-6 digits -> twins Pre-Unit 500cc & 650cc '52 - '60 D + 3-5 digits -> twins Pre-Unit 500cc & 650cc '60 - '62 DU + 3-5 digits -> twins Unit 650cc '63 - '69 etc etc etc You need to define these closely enough so that there is no ambiguity between two different expressions. Then you create regular expressions for each pattern, and test a given engine / frame number against each re in turn until you get a match. You may then need to extract the digits and letters from the pattern to determine the actual month / year data. Here's an example algorithm: if matches H + 3-5 digits: get integer value of numeric part if num >= 101 and num <= 760: print "Unit 350cc & 500cc, 1957" if num >= 761 and num <= 5484: print "Unit 350cc & 500cc, 1958" ..... if matches DU + 3-5 digits: get integer value of numeric part if num >= 101 and num <= 5824: print "Unit 650cc, 1963" if num >= 5825 and num <= 13374: print "Unit 650cc, 1964" etc etc etc Note, I think the 1981 model year ran KCA - DCA prefixes, not as shown on the website you quoted. -- Denis McMahon, denismfmcmahon(a)gmail.com

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Re: Searching through more than one file.
by Paul Rubin Dec. 28, 2014

Dec. 28, 2014

Dave Angel <davea(a)davea.name> writes: > res = set() > fnames = glob('*.txt') > for line in fileinput.input(fnames): > res.update(line.rstrip().split()) > print sorted(res) Untested: print sorted(set(line.rstrip().split() for line in fileinput(fnames)))

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Autoloader (was Re: CSV Error)
by Chris Angelico Dec. 28, 2014

Dec. 28, 2014

On Mon, Dec 29, 2014 at 12:58 AM, Skip Montanaro <skip.montanaro(a)gmail.com> wrote: > (Ignore the "autoloading" message. I use an autoloader in interactive > mode which comes in handy when I forget to import a module, as I did > here.) We were discussing something along these lines a while ago, and I never saw anything truly satisfactory - there's no easy way to handle a missing name by returning a value (comparably to __getattr__), you have to catch it and then try to re-execute the failing code, which isn't perfect. How does yours work? Or was it one of the ones that was mentioned last time? ChrisA

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Re: CSV Error
by JC Dec. 28, 2014

Dec. 28, 2014

On Sun, 28 Dec 2014 06:19:58 -0600, Skip Montanaro wrote: >> ValueError: I/O operation on closed file >> >> Here is my code in a Python shell - >> >> >>> with open('x.csv','rb') as f: >> ... r = csv.DictReader(f,delimiter=",") >> >>> r.fieldnames > > The file is only open during the context of the with statement. Indent > the last line to match the assignment to r and you should be fine. > > Skip > ValueError: I/O operation on closed file > > > > Here is my code in a Python shell - > > > > >>> with open('x.csv','rb') as f: > > ... r = csv.DictReader(f,delimiter=",") > > >>> r.fieldnames > The file is only open during the context of the with > statement. Indent the last line to match the assignment to r and you > should be fine. > Skip I have indented the line. I am working in the shell. The error is still there. Thanks.

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Re: CSV Error
by Jussi Piitulainen Dec. 28, 2014

Dec. 28, 2014

Skip Montanaro writes: > > ValueError: I/O operation on closed file > > > > Here is my code in a Python shell - > > > > >>> with open('x.csv','rb') as f: > > ... r = csv.DictReader(f,delimiter=",") > > >>> r.fieldnames > > The file is only open during the context of the with statement. > Indent the last line to match the assignment to r and you should be > fine. Or, don't use "with" when experimenting in the shell. >>> import csv >>> f = open('x.csv') >>> r = csv.DictReader(f, delimiter = ',') >>> r.fieldnames ['Foo', 'Bar'] >>>

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CSV Error
by JC Dec. 28, 2014

Dec. 28, 2014

Hello, I am trying to read a csv file using DictReader. I am getting error - Traceback (most recent call last): File "<pyshell#19>", line 1, in <module> r.fieldnames File "/usr/lib/python2.7/csv.py", line 90, in fieldnames self._fieldnames = self.reader.next() ValueError: I/O operation on closed file Here is my code in a Python shell - >>> with open('x.csv','rb') as f: ... r = csv.DictReader(f,delimiter=",") >>> r.fieldnames I have tried to open the file in 'rU', 'r' mode. But still I am getting the above error. Please help. Thanks.

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New to PSF
by prateek pandey Dec. 28, 2014

Dec. 28, 2014

Hey, I'm new to PSF. Can someone please help me in getting started.

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Re: ANN: PyQt v5.4 Released
by wxjmfauth＠gmail.com Dec. 28, 2014

Dec. 28, 2014

Le vendredi 26 décembre 2014 12:36:19 UTC+1, Phil Thompson a écrit : > PyQt5 v5.4 has been released and is available from > http://www.riverbankcomputing.com/software/pyqt/download5. > > PyQt5 is a comprehensive set of bindings for v5 of Digia's Qt > cross-platform application framework. It supports Python v3, v2.7 and > v2.6. > > The highlights of this release include support for Qt v5.4 including the > new QtWebChannel and QtWebEngineWidgets modules. The QtXml module has > also > been restored. > > PyQt5 supports cross-compiling to iOS and Android. > > Windows installers are provided which contain everything needed for > PyQt5 > development (including Qt, Qt Designer, QScintilla, and MySQL, > PostgreSQL, > SQLite and ODBC drivers) except Python itself. Installers are provided > for the 32 and 64 bit versions of Python v3.4. > > PyQt5 is implemented as a set of 33 extension modules including support > for: > > - non-GUI infrastructure including event loops, threads, i18n, user and > application settings, mapped files and shared memory > > - GUI infrastructure including window system integration, event > handling, > 2D graphics, basic imaging, fonts, OpenGL > > - a comprehensive set of desktop widgets > > - WebKit and Chromium based browsers > > - WebSockets > > - a client-side library for accessing Qt Cloud Services > > - full integration with Quick2 and QML allowing new Quick items to be > implemented in Python and created in QML > > - event driven network programming > > - multimedia including cameras, audio and radios > > - Bluetooth > > - global positioning using satellite, Wi-Fi or text file sources > > - sensors including accelerometers, altimeters, compasses, gyroscopes, > magnetometers, and light, pressure, proximity, rotation and > temperature > sensors > > - serial ports > > - SQL > > - printing > > - DBus > > - XPath, XQuery, XSLT and XML Schema validation > > - a help system for creating and viewing searchable documentation > > - unit testing of GUI applications. All this fantastic work for peanuts. (Just amazing). jmf

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Re: smtplib not working as expected
by Denis McMahon Dec. 27, 2014

Dec. 27, 2014

On Sat, 27 Dec 2014 02:52:39 +0000, Juan Christian wrote: > So, I changed the code how you said, but still not working. > Traceback: > > reply: b'550 SMTP is available only with SSL or TLS connection > enabled.\r\n' > reply: retcode (550); Msg: b'SMTP is available only with SSL or TLS > connection enabled.' ^^^^^^ have a guess what these messages in the traceback mean. -- Denis McMahon, denismfmcmahon(a)gmail.com

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smtplib not working as expected
by Juan Christian Dec. 27, 2014

Dec. 27, 2014

I have the following test code: import smtplib fromaddr = 'mksfjnsfji4433j43jc(a)bk.ru' toaddrs = ['mksfjnsfji4433j43jc(a)bk.ru'] msg = ("From: %s\r\nTo: %s\r\n\r\n" % (fromaddr, ", ".join(toaddrs))) msg = msg + 'test' print("Message length is " + repr(len(msg))) server = smtplib.SMTP('smtp.mail.ru', 465) server.set_debuglevel(1) server.sendmail(fromaddr, toaddrs, msg) server.quit() And when I execute it, it keeps running forever and I don't get any email. What's missing, what's wrong? The smtp server and port are correct - https://help.mail.ru/enmail-help/mailer/popsmtp I'm following this tutorial:https://docs.python.org/3/library/smtplib.html Python 3.4.2

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