Python - BaseHTTPServer.HTTPServer Concurrency & Threading
Is there a way to make BaseHTTPServer.HTTPServer be multi-threaded like SocketServer.ThreadingTCPServer? ...
python
How to check if datetime is older than 20 seconds.
Hello! This is my first time here so I hope I post this question at the right place. :) I need to build flood control for my script but I'm not good at all this datetime to time conversions with UTC and stuff. I hope you can help me out. I'm using the Google App Engine with Python. I've got a datetimeproperty at the DataStore database w...
Rebuilding website from Django 0.96 to Django 1.2
I've got a website done in Django 0.96 (done in 2007), and now we are thinking about rebuilding it (not just migrating) for Django 1.2 . Can anyone point me to the new (and worth the while) widgets, plugins and other stuff for Django 1.2 (released in april 2010). I've heard of "South" and of a widget for debugging (can't remember the ...
Hexadecimals in python
I don't know python and I'm porting a library to C#, I've encountered the following lines of code that is used in some I/O operation but I'm not sure what it is, my guess is that it's a hexadecimal but I don't know why it's inside a string, neither what the backslashes do? sep1 = '\x04H\xfe\x13' # record separator sep2 = '\x00\x...
cross-platform iTunes visualizer?
I'd like to make a cross-platform iTunes visualizer (Mac + Windows). I've looked at: Quartz Composer, which only runs on Mac OS, and appears to consist of dragging boxes around. I'd like to be able to actually program. VizKit, which seems kind of heavy, and doesn't come with any easy-to-modify sample projects. Can someone point me to...
How to organize Python modules for PyPI to support 2.x and 3.x
I have a Python module that I would like to upload to PyPI. So far, it is working for Python 2.x. It shouldn't be too hard to write a version for 3.x now. But, after following guidelines for making modules in these places: Distributing Python Modules The Hitchhiker’s Guide to Packaging it's not clear to me how to support multiple so...
Schedule a repeating event in Python 3
I'm trying to schedule a repeating event to run every minute in Python 3. I've seen class sched.scheduler but I'm wondering if there's another way to do it. I've heard mentions I could use multiple threads for this, which I wouldn't mind doing. I'm basically requesting some JSON and then parsing it; its value changes over time. To use...
Python: Can subclasses overload inherited methods?
I'm making a shopping cart app in Google App Engine. I have many classes that derive from a base handler: class BaseHandler(webapp.RequestHandler): def get(self, CSIN=None): self.body(CSIN) Does this mean that the body() method of every descendant class needs to have the same argument? This is cumbersome. Only one descenda...
How to create Python module distribution to gracefully fall-back to pure Python code
I have written a Python module, and I have two versions: a pure Python implementation and a C extension. I've written the __init__.py file so that it tries to import the C extension, and if that fails, it imports the pure Python code (is that reasonable?). Now, I'd like to know what is the best way to distribute this module (e.g. write ...
Apps not showing in Django admin site
I have a Django project with about 10 apps in it. But the admin interface only shows Auth and Site models which are part of Django distribution. Yes, the admin interface is up and working but none of my self-written apps shows there. INSTALLED_APPS INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.sites', 'django.co...
Saving Python Complex Data Types to Amazon S3
Can Python class data be saved to S3 without marshalling? I am trying to cut down of I/O operations until necessary. ...
Python 3.1.1 Class Question
I'm a new Python programmer who is having a little trouble using 'self' in classes. For example: class data: def __init__(self): self.table = [] def add(self, file): self.table.append(file) data.add('yes') In this function I want to have table be a variable stored in the class data and use add to modify it. How...
Linking a qtDesigner .ui file to python/pyqt?
So if I go into QtDesigner and build a UI, it'll be saved as a .ui file. How can I make this as a python file or use this in python? ...
Why is my implementation of the Sieve of Atkin overlooking numbers close to the specified limit?
My implementation of Sieve of Atkin either overlooks primes near the limit or composites near the limit. while some limits work and others don't. I'm am completely confused as to what is wrong. def AtkinSieve (limit): results = [2,3,5] sieve = [False]*limit factor = int(math.sqrt(lim)) for i in range(1,factor): for j in range(1, fac...
Python + QT + Gstreamer
Hi everyone, I'm working with PyQt and trying to get video from a webcam to play within a QT widget. I've found tutorials for C and Qt, and for python and gtk, but NOTHING for this combo of pyQt and gstreamer. Anybody get this working? This plays the video fine, but in a separate window: self.gcam = gst.parse_launch('v4l2src devic...
Python, print delimited list
Consider this Python code for printing a list of comma separated values for element in list: print element + ",", What is the preferred method for printing such that a comma does not appear if element is the final element in the list. ex a = [1, 2, 3] for element in a print str(element) +",", output 1,2,3, desired 1,2,3 ...
Python, lazy list
Is it possible to have a list be evaluated lazily in Python? For example a = 1 list = [a] print list #[1] a = 2 print list #[1] If the list was set to evaluate lazily then the final line would be [2] ...
about the post_save signal and created argument
the docs says: post_save django.db.models.signals.post_save created A boolean; True if a -new- record was create. and I have this: from django.db.models.signals import post_save def handle_new_user(sender, instance, created, **kwargs): print "--------> save() "+str(created) post_save.connect(handle_new_user, sender=User) when ...
replace only one variable in web.py templates
I am passing variable to template in web.py and have the same condition in some places. Like this: $if myvar=="string1": $passed argument1 ............ $if myvar =="striung2": $passed argument2 If say myvar is "string1" and I pass passed = "AAA" then I have AAA argument1 on my page, but the other if statements get replaced by e...
Python, invoke super constructor
class A: def __init__(self): print "world" class B(A): def __init__(self): print "hello" B() hello In all other languages I've worked with the super constructor is invoked implicitly. How does one invoke it in Python? I would expect super(self) but this doesn't work ...