Download Videos from Youtube with Python
I am hoping to write a script that will allow for the detection of video on a url and provide a download link to a *flv for google chrome. Anyone have any suggestions were to start and get a footing? ...
python
drawing just half of a matrix in matplotlib with python
How can I draw only half of a matrix, e.g. the upper / lower part of a matrix, with pcolor for example? Suppose I have a n x n matrix and I draw it using pcolor(my_matrix). I want only the lower half to be shown since other values are redundant. How can this be done? thanks. ...
Convert url for crawler
Hi.. I'm working on a crawler. Usually, when i type url1 in my browser, browser converts it to url2. How can i do this in Python? url1: www.odevsitesi.com/ara.asp?kelime=doğanın dengesinin bozulması url2: www.odevsitesi.com/ara.asp?kelime=do%F0an%FDn%20dengesinin%20bozulmas%FD ...
SQLAlchemy DetachedInstanceError with regular attribute (not a relation)
I just started using SQLAlchemy and get a DetachedInstanceError and can't find much information on this anywhere. I am using the instance outside a session, so it is natural that SQLAlchemy is unable to load any relations if they are not already loaded, however, the attribute I am accessing is not a relation, in fact this object has no r...
Does OOP make sense for small scripts?
I mostly write small scripts in python, about 50 - 250 lines of code. I usually don't use any objects, just straightforward procedural programming. I know OOP basics and I have used object in other programming languages before, but for small scripts I don't see how objects would improve them. But maybe that is just my limited experienc...
Python encoding for pipe.communicate
I'm calling pipe.communicate from Python's subprocess module from Python 2.6. I get the following error from this code: from subprocess import Popen pipe = Popen(cwd) pipe.communicate( data ) For an arbitrary cwd, and where data that contains unicode (specifically 0xE9): Exec. exception: 'ascii' codec can't encode character u'\x...
Parse items from text file
I have a text file that includes data inside {[]} tags. What would be the suggested way to parse that data so I can just use the data inside the tags? Example text file would look like this: 'this is a bunch of text that is not {[really]} useful in any {[way]}. I need to {[get]} some items {[from]} it.' I would like to end up with '...
django-mptt: how to successfully move nodes around
django-mptt seems determined to drive me out of my mind. I'm trying to do something relatively simple: I'm going to delete a node, and need to do something reasonable with the node's children. Namely, I'd like to move them up one level so they're children of their current parent's parent. That is, if the tree looks like: Root | Gran...
Python timed file upload
I have a python script that accepts a file from the user and saves it. Is it possible to not upload the file immediately but to que it up and when the server has less load to upload it then. Can this be done by transferring the file to the browsers storage area or taking the file from the Harddrive and transferring to the User's RAM? ...
finding elements in python association lists efficiently
I have a set of lists that look like this: conditions = [ ["condition1", ["sample1", "sample2", "sample3"]], ["condition2", ["sample4", "sample5", "sample6"], ...] how can I do the following things efficiently and elegantly in Python? Find all the elements in a certain condition? e.g. get all the samples in condition2. Right now I...
Django colon syntax in template tags: only in newer versions?
I just deployed an application to a new server, and although I'm using virtualenv, I had to install a new environment on the production server, which has a different architecture. Anyway, I received no TemplateSytaxErrors in development, but on the production server, I get: Exception Type: TemplateSyntaxError Exception Value: Ca...
How can I receive percent encoded slashes with Django on App Engine?
I'm using Django with Google's App Engine. I want to send information to the server with percent encoded slashes. A request like http:/localhost/turtle/waxy%2Fsmooth that would match against a URL like r'^/turtle/(?P<type>([A-Za-z]|%2F)+)$'. The request gets to the server intact, but sometime before it is compared against the regex th...
IDL-like parser that turns a document definition into powerful classes?
I am looking for an IDL-like (or whatever) translator which turns a DOM- or JSON-like document definition into classes which are accessible from both C++ and Python, within the same application expose document properties as ints, floats, strings, binary blobs and compounds: array, string dict (both nestable) (basically the JSON type fe...
Python: Elegant way to check if at least one regex in list matches a string
Hi. I have a list of regexes in python, and a string. Is there an elegant way to check if the at least one regex in the list matches the string? By elegant, I mean something better than simply looping through all of the regexes and checking them against the string and stopping if a match is found. Basically, I had this code: list = ['s...
rename keys in a dictionary
i want to rename the keys of a dictionary are which are ints, and i need them to be ints with leading zeros's so that they sort correctly. for example my keys are like: '1','101','11' and i need them to be: '001','101','011' this is what im doing now, but i know there is a better way tmpDict = {} for oldKey in aDict: tmpDict...
Model inheritance and RSS Feed framework
I'm using model inheritance to manage a multiple models queryset: from django.db import models from django.contrib.sites.models import Site from django.contrib.auth.models import User from imagekit.models import ImageModel import datetime class Entry(models.Model): date_pub = models.DateTimeField(default=datetime.datetime.now) ...
Python's cPickle deserialization from PHP?
Hi! I have to deserialize a dictionary in PHP that was serialized using cPickle in Python. In this specific case I probably could just regexp the wanted information, but is there a better way? Any extensions for PHP that would allow me to deserialize more natively the whole dictionary? Apparently it is serialized in Python like this: ...
How do I use python to hit this command and return the result?
$whois abc.com I want to use python to hit this command, and then give the result as a String of text. How can I do that? ...
Save JSON outputed from a URL to a file
Hey Guys, How would I save JSON outputed by an URL to a file? e.g from the Twitter search API (this http://search.twitter.com/search.json?q=hi) Language isn't important. Thanks! edit // How would I then append further updates to EOF? edit 2// Great answers guys really, but I accepted the one I thought was the most elegant. Thanks!...
Union on ValuesQuerySet in django
I've been searching for a way to take the union of querysets in django. From what I read you can use query1 | query2 to take the union... This doesn't seem to work when using values() though. I'd skip using values until after taking the union but I need to use annotate to take the sum of a field and filter on it and since there's no way ...