python

Generating a python file

Hi! I'm havin issues with python (Sorry for my personal feelings before.. :P). I have a txt file, it contains a custom language and I have to translate it to a working python code. The input: import sys n = int(sys.argv[1]) ;;print "Beginning of the program!" LOOP i in range(1,n) {print "The number:";;print i} BRANCH n < 5 ...

python intercepting communication

lets say you run third party program on your computer whitch create a process named example.exe how do i determinate if this process is running and how many windows does he open? How do i intercept network communication between this windows and server? my goal is to create an app whitch will be monitoring network trafic between example...

Python Access Parallel Port

Hi, I've been trying to access the parallel port with pyParallel, which is in the same sourceforge as PySerial: http://sourceforge.net/projects/pyserial/files/ I'm getting a WidowsError: exception: priviledged instruciton. Has anyone used this module before? import parallel p = parallel.Parallel() Traceback (most recent call last): ...

Python: How best to parse a simple grammar?

Ok, so I've asked a bunch of smaller questions about this project, but I still don't have much confidence in the designs I'm coming up with, so I'm going to ask a question on a broader scale. I am parsing pre-requisite descriptions for a course catalog. The descriptions almost always follow a certain form, which makes me think I can par...

Simulating python's With statement in java

Is there something like Python with context manager in Java? For example say I want to do something like the following: getItem(itemID){ Connection c = C.getConnection(); c.open(); try{ Item i = c.query(itemID); }catch(ALLBunchOfErrors){ c.close(); } c.close(); return c; } where in python I just have: ...

Optimizing python link matching regular expression

I have a regular expression, links = re.compile('<a(.+?)href=(?:"|\')?((?:https?://|/)[^\'"]+)(?:"|\')?(.*?)>(.+?)</a>',re.I).findall(data) to find links in some html, it is taking a long time on certain html, any optimization advice? One that it chokes on is http://freeyourmindonline.net/Blog/ ...

Calling/selecting variables (float valued) with user input in Python

I've been working on a computational physics project (plotting related rates of chemical reactants with respect to eachother to show oscillatory behavior) with a fair amount of success. However, one of my simulations involves more than two active oscillating agents (five, in fact) which would obviously be unsuitable for any single visual...

python sqlite3 won't execute a join, but sqlite3 alone will

Using the sqlite3 standard library in python 2.6.4, the following query works fine on sqlite3 command line: select segmentid, node_t, start, number,title from ((segments inner join position using (segmentid)) left outer join titles using (legid, segmentid)) left outer join numbers using (start, legid, version); But If ...

Can the Django urls.py system be turned into Pylon's Routes?

How can that be done? Thanks ...

Python, Ruby, and C#: Use cases?

Hi everyone. For as long as I can remember, I've always had a "favorite" language, which I use for most projects, until, for some particular reason, there is no way/point on using it for project XYZ. At that point, I find myself rusty (and sometimes outdated) on other languages+libraries+toolchains. So I decided, I would just use some l...

Why does output of fltk-config truncate arguments to gcc?

I'm trying to build an application I've downloaded which uses the SCONS "make replacement" and the Fast Light Tool Kit Gui. The SConstruct code to detect the presence of fltk is: guienv = Environment(CPPFLAGS = '') guiconf = Configure(guienv) if not guiconf.CheckLibWithHeader('lo', 'lo/lo.h','c'): print 'Did not find liblo for OSC...

How do I fix this unicode/cPickle error in Python?

ids = cPickle.loads(gem.value) loads() argument 1 must be string, not unicode ...

How to backup an AppEngine site?

So, you build a great shiny cloudy 2.0 website on top of AppEngine, with thousands upon thousands of images saved into the datastore and gigs of data at the blobstore. How do you backup them? Ok, so this is how to do it: 1/ Add this to the app.yaml (and update the app, off course): - url: /remote_api script: $PYTHON_LIB/google/appen...

Realtime processing and callbacks with Python and C++

I need to write code to do some realtime processing that is fairly computationally complex. I would like to create some Python classes to manage all my scripting, and leave the intensive parts of the algorithm coded in C++ so that they can run as fast as possible. I would like to instantiate the objects in Python, and have the C++ algor...

WN server filter won't work

WN servers have an alternative to cgi programs called filters. I have been trying to get one to work, but I have had no luck. I am writing in python. It looks like the server is not receiving any output from the program but is parsing nothing and wrapping this nothing in my standard header and footer. I have chmod 755 the program and...

CSS file pathing problem

Hi there, When designing a HTML template in my favorite editor (TextPad at the moment) I can view my code in a browser by pressing F11 or the appropriate toolbar button. I have my common css rules in a separate file so my HTML contains the code: <link rel="stylesheet" href="commoncss.css" type="text/css"> This works when the .css f...

django 1.2.1: Override model name in admin interface?

I have a model called "Activity" in my django app. in the admin interface, it appears on the screen as "Activitys". how can I override the label on the admin page to make it "Activities" instead? I see in the archives how to do this for a field, but not for a model itself. thanks! ...

Counting number of values between interval

Is there any efficient way in python to count the times an array of numbers is between certain intervals? the number of intervals i will be using may get quite large like: mylist = [4,4,1,18,2,15,6,14,2,16,2,17,12,3,12,4,15,5,17] some function(mylist, startpoints): # startpoints = [0,10,20] count values in range [0,9] count v...

Recursion function not working properly

I'm having quite a hard time figuring out what's going wrong here: class iterate(): def __init__(self): self.length=1 def iterated(self, n): if n==1: return self.length elif n%2==0: self.length+=1 self.iterated(n/2) elif n!=1: self.length+=1 ...

Removing right-to-left mark and other unicode characters from input in Python

I am writing a forum in Python. I want to strip input containing the right-to-left mark and things like that. Suggestions? Possibly a regular expression? ...