🌐 Mailman 3 August 2011 - Python-list - python.org

Re: Closures and Partial Function Application
by Travis Parks Aug. 31, 2011

Aug. 31, 2011

On Aug 31, 1:18 pm, Chris Rebert <c...(a)rebertia.com> wrote: > On Wed, Aug 31, 2011 at 9:45 AM, Travis Parks <jehugalea...(a)gmail.com> wrote: > > I was a little disappointed the other day when I realized that > > closures were read-only. I like to use closures quite a bit. > > Assuming I'm intuiting your question correctly, then you're incorrect; > they are "read/write". You just need a `nonlocal` declaration for the > variables in question. Seehttp://www.python.org/dev/peps/pep-3104/ > andhttp://docs.python.org/release/3.1.3/reference/simple_stmts.html#nonl... > for details. > > Cheers, > Chris > > Cool. So I just need to put "nonlocal" in front of the variable name.

2 2

Please visit the following link to watch Cristiano Ronaldo New Pics.
by Ashraf Ali Aug. 31, 2011

Aug. 31, 2011

Hello Friends. I brought nice, beautiful, amazing and attracive Pics of Cristiano Ronaldo.Please Visit the following link for more detail http://cristianoronaldopics2011.blogspot.com/

1 0

Re: Installing WebDAV server
by Fokke Nauta Aug. 31, 2011

Aug. 31, 2011

"Paul Kölle" <paul(a)subsignal.org> wrote in message news:mailman.595.1314780791.27778.python-list@python.org... > Hi, > > Am 30.08.2011 22:00, schrieb Fokke Nauta: >> Hi all, >> >> I am completely new to Python, but I'm confronted with a problem I can't >> solve. > Welcome to python. > >> This is my question: > [snip] > >> I installed Python 3.2.1 and extracted the packages PyWebDAV and PyXML. >> Now >> I have a working Python app and 2 directories called PyWebDAV-0.9.4.1 and >> PyXML-0.8.4. In the PyWebDAV README it says: >> >> Installation and setup of server can be as easy as follows: >> >> $ easy_install PyWebDAV >> $ davserver -D /tmp -n -J >> >> But of course it doesn't work like that. When I start up Python GUI I see >> the ">>>" prompt instead of the "$" prompt. But where do I place the two >> directories? And there is no easy_install script in the PyXML-0.8.4 >> directory, only a setup.py and ez_setup.py script. I guess the latter is >> the >> one to use. But how? > You dont install from "Python GUI", use normal cmd, navigate to the folder > you downloaded PyXML and PyWebDAV and run "python setup.py install" > (python.exe has to be in your PATH). Then you have to find the > startup-script "davserver". Find your python installation directory and > look into <Install dir>/Tools/Scripts, in my computer this is > E:\python27\Tools\Scripts. PyXML and PyWebDAV get installed in the > site-packages folder i.e. E:\python27\Lib/site-packages. You might have to > look for "davserver" there... > Thanks, Paul. I ran "python setup.py install" in both the PyXML and PyWebDAV directories. A lot of things happened and are added into those directories and I guess it will be OK. Next step, the startup-script "davserver". There is no script as such, also not in \python27\tools\scripts. I found 2 similar scripts: 1. server.py in D:\Python27\WebDAV\PyWebDAV\DAVServer 2. WebDAVServer.py in D:\Python27\WebDAV\PyWebDAV\DAV Which one is the one to use? I also configured config.ini in D:\Python27\WebDAV\PyWebDAV\DAVServer In this file it says: "# Auth Database Table, Must exists in database prior to firstrun dbtable=webDav # Create User Database Table and Insert system user" I created in MySQL a database called webDav. I can create a table called User, but how many fields? With regards, Fokke

2 1

Usage of PyDateTime_FromTimestamp
by Andreas Aug. 31, 2011

Aug. 31, 2011

Hi, I'm working on a c-extension of python and want to create an instance of python datetime object with a unix timestamp in c. On the documentation site ( http://docs.python.org/c-api/datetime.html ) I found the function PyDateTime_FromTimestamp() which returns a new reference based on an input parameter. The description is as follows: Create and return a new datetime.datetime object given an argument tuple suitable for passing to datetime.datetime.fromtimestamp(). I tried out to call the function with a PyFloat_Object but the function always returns NULL (even if I simply put in 0). Does somebody have an example how I have to call the function or can give a hint what kind of parameter tuple is required to get it work? Thanks!

2 3

How to save the packages received by a network interface or some port in a file and resend the packages received when needed?
by king6cong＠gmail.com Aug. 31, 2011

Aug. 31, 2011

hi, This is a question not specific to Python,but its related somehow,and I believe I can get some help from your fellow:) I am doing my work on a server service program on Linux that processes the packages sent to the socket it listens.Their is already a old such service listening on the port doing its job,and I can't stop the old server service, and I need to get the packages sent to the old server and send them to my new server service to make sure it works well .How can I get the package and resent them to my new service? Is there such a tool or is there some functionality that tools such as tcpdump already provides? Thanks:)

3 4

Handling 2.7 and 3.0 Versions of Dict
by Travis Parks Aug. 31, 2011

Aug. 31, 2011

I am writing a simple algorithms library that I want to work for both Python 2.7 and 3.x. I am writing some functions like distinct, which work with dictionaries under the hood. The problem I ran into is that I am calling itervalues or values depending on which version of the language I am working in. Here is the code I wrote to overcome it: import sys def getDictValuesFoo(): if sys.version_info < (3,): return dict.itervalues else: return dict.values getValues = getDictValuesFoo() def distinct(iterable, keySelector = (lambda x: x)): lookup = {} for item in iterable: key = keySelector(item) if key not in lookup: lookup[key] = item return getValues(lookup) I was surprised to learn that getValues CANNOT be called as if it were a member of dict. I figured it was more efficient to determine what getValues was once rather than every time it was needed. First, how can I make the method getValues "private" _and_ so it only gets evaluated once? Secondly, will the body of the distinct method be evaluated immediately? How can I delay building the dict until the first value is requested? I noticed that hashing is a lot different in Python than it is in .NET languages. .NET supports custom "equality comparers" that can override a type's Equals and GetHashCode functions. This is nice when you can't change the class you are hashing. That is why I am using a key selector in my code, here. Is there a better way of overriding the default hashing of a type without actually modifying its definition? I figured a requesting a key was the easiest way.

4 3

HOT ACTRESS PHOTOS AND VIDEOS
by SAHITHI Aug. 31, 2011

Aug. 31, 2011

1 0

Re: Installing WebDAV server
by Fokke Nauta Aug. 31, 2011

Aug. 31, 2011

"Laszlo Nagy" <gandalf(a)shopzeus.com> wrote in message news:mailman.603.1314797809.27778.python-list@python.org... > >>> Where it says: >>> >>>> Installation and setup of server can be as easy as follows: >>>> >>>> $ easy_installPyWebDAV >>>> $ davserver-D/tmp-n-J >>>> Starting upPyWebDAV server(version0.9.2-dev) >>>>>> ATTENTION: Authentication disabled! >>>>>> Serving datafrom /tmp >>>>>> Listening on localhost(8008) >> Yes, but that's Unix/Linux again. >> But I'm in Windows, without experience with Python. > Not really... The "easy_install" command is the same on windows. Maybe the > command prompt is different, but the command itself is the same. Same is > true with the "davserver" command. If you can find a "davserver.exe" or > "davserver.py" or "davserver.pyw" file under site-packages or > tools/scripts, then that will be the program that you need to start up. No > magic. > Actually, I installed easy_install setuptools for Windows (setuptools-0.6c11.win32-py2.7.exe). Running easy_install generated an error message: "Setuptools version 0.6c9 or greater has been installed. (Run "ez_setup.py -U setuptools" to reinstall or upgrade.)" I did, quite something happened but the same error message came back when retrying. So, I installed it another way, indicated by Paul Kölle: "navigate to the folder you downloaded PyXML and PyWebDAV and run "python setup.py install" (python.exe has to be in your PATH). " That worked fine, but: There is no davserver script or executable. Please read my response to Paul Kölle. Fokke

1 0

Re: How to save the packages received by a network interface or some port in a file and resend the packages received when needed?
by Grant Edwards Aug. 31, 2011

Aug. 31, 2011

On 2011-08-31, Matty Sarro <msarro(a)gmail.com> wrote: > Its possible using TCPDUMP and wireshark. however its a bit of a > manual process (open the pcap in wireshark, select the correct tcp > stream, and extract the file). Presumably the OP knows the port IP address and port number on which the server is listening, so wouldn't it be simpler to just capture TCP traffic to/from that IP/port? Then you can play it back using tcprewrite, tcpreplay, et al. But, I don't see how that's going to work. The OP seems to want to capture a TCP session and then "replay it" so that the client from the session ends up talking to a different server during the replay. The chances of the new server starting up a connection with the same ACK sequence number is practially nil isn't it? >> ?? This is a question not specific to Python,but its related >> somehow,and I believe I can get some help from your fellow:) ?? I am >> doing my work on a server service program on Linux that processes the >> packages sent to the socket it listens.Their is already a old such >> service listening on the port doing its job,and I can't stop the old >> server service, and I need to get the packages sent to the old server >> and send them to my new server service to make sure it works well >> .How can I get the package and resent them to my new service? Is >> there such a tool or is there some functionality that tools such as >> tcpdump already provides? Thanks:) -- Grant Edwards grant.b.edwards Yow! ... this must be what at it's like to be a COLLEGE gmail.com GRADUATE!!

1 0

Creating python egg including pre-built libraries
by merk Aug. 31, 2011

Aug. 31, 2011

I have a set of complex libraries that I have wrapped with swig. I would like to create a python egg of the swig generated python files and the pre-built libraries. The libraries have a lot of dependencies and I don't want to force the user to get all the dependencies to try to build the libraries from source. I just want to distribute some python files and the libraries for a given platform. Does anyone have a recipe for doing something like this? Thanks, Karl

1 0