python

How do I find difference between times in different timezones in Python?

I am trying to calculate difference(in seconds) between two date/times formatted as following: 2010-05-11 17:07:33 UTC 2010-05-11 17:07:33 EDT time1 = '2010-05-11 17:07:33 UTC' time2 = '2010-05-11 17:07:33 EDT' delta = time.mktime(time.strptime(time1,"%Y-%m-%d %H:%M:%S %Z"))-\ time.mktime(time.strptime(time2, "%Y-%m-%d %H:%M:%...

SQLAlchemy returns tuple not dictionary

Hi everyone, I've updated SQLAlchemy to 0.6 but it broke everything. I've noticed it returns tuple not a dictionary anymore. Here's a sample query: query = session.query(User.id, User.username, User.email).filter(and_(User.id == id, User.username == username)).limit(1) result = session.execute(query).fetchone() This piece of code use...

Conversion of strings like \\uXXXX in python

I have a string like \uXXXX (representation) and I need to convert it into unicode. I receive it from 3rd party service so python interpreter doesn't convert it and I need conversion in my code. How do I do it in Python? >>> s u'\\u0e4f\\u032f\\u0361\\u0e4f' ...

Django: Summing values

I have a two Model - Project and Cost. class Project(models.Model): title = models.CharField(max_length=150) url = models.URLField() manager = models.ForeignKey(User) class Cost(models.Model): project = models.ForeignKey(Project) cost = models.FloatField() date = models.DateField() I must return the sum of cos...

overriding callbacks avoiding attribute pollution

I've a class that has some callbacks and its own interface, something like: class Service: def __init__(self): connect("service_resolved", self.service_resolved) def service_resolved(self, a,b c): ''' This function is called when it's triggered service resolved signal and has a lot of parameter...

Python and hebrew encoding/decoding error

Hey, I have sqlite database which I would like to insert values in Hebrew to I am keep getting the following error : UnicodeDecodeError: 'ascii' codec can't decode byte 0xd7 in position 0: ordinal not in range(128) my code is as following : runsql(u'INSERT into personal values(%(ID)d,%(name)s)' % {'ID':1,'name':fabricate_heb...

Build problems when adding `__str__` method to Boost Python C++ class

I have started to play around with boost python a bit and ran into a problem. I tried to expose a C++ class to python which posed no problems. But I can't seem to manage to implement the __str__ functionality for the class without getting build errors I don't understand. I'm using boost 1_42 prebuild by boostpro. I build the library usi...

Silent the stdout of a function in python without trashing sys.stdout and restoring each function call

Is there a way in python without wrapping a function call like following? Original Broken Code: from sys import stdout from copy import copy save_stdout = copy(stdout) stdout = open('trash','w') foo() stdout = save_stdout Edit: Corrected code from Alex Martelli import sys save_stdout = sys.stdout sys.stdout = open('trash', 'w') foo(...

How to save a whole project in python

Hello I have developed a small game in python using ZODB as backend for DB processing.I have never done game programming before.I was hoping if someone can tell me as to how I can save my current game and then reload it using python.The database filename is data.fs and there are three more ZODB files in my folder.One being for locks rest...

Django syncdb not making tables for my app

It used to work, and now it doesn't. python manage.py syncdb no longer makes tables for my app. From settings.py: INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'mysite.myapp', 'django.contrib.admin', ) What could I be doing wrong? Th...

Catch a thread's exception in the caller thread in Python

Hi Everyone, I'm very new to Python and multithreaded programming in general. Basically, I have a script that will copy files to another location. I would like this to be placed in another thread so I can output .... to indicate that the script is still running. The problem that I am having is that if the files cannot be copied it wi...

What's the scope of a Python variable declared in an if statement?

I'm new to Python, so this is probably a simple scoping question. The following code in a Python file (module) is confusing me slightly: if __name__ == '__main__': x = 1 print x In other languages I've worked in, this code would throw an exception, as the x variable is local to the if statement and should not exist outside of it....

SOCKS in C/C++ or another language?

How do i add SOCKS support to my application? and where can i get the libs? any help appreciated thanks ...

Organizing a random list of objects in Python.

So I have a list that I want to convert to a list that contains a list for each group of objects. ie ['objA.attr1', 'objC', 'objA.attr55', 'objB.attr4'] would return [['objA.attr1', 'objA.attr55'], ['objC'], ['objB.attr4']] currently this is what I use: givenList = ['a.attr1', 'b', 'a.attr55', 'c.attr4'] trgList = [] objNames = [] ...

Combinatorial optimisation of a distance metric

I have a set of trajectories, made up of points along the trajectory, and with the coordinates associated with each point. I store these in a 3d array ( trajectory, point, param). I want to find the set of r trajectories that have the maximum accumulated distance between the possible pairwise combinations of these trajectories. My first ...

Identifying a function call in a python script line in runtime

I have a python script that I run with 'exec'. When a function is called by the script, I would like it to know the line number and offset in line for that call. Here is an example. If my script is: foo1(); foo2(); foo1() foo3() And if I have code that prints (line,offset) in every function, I should get (0,0), (0,8), (0,16), (1,0) ...

How should I grab pairs from a list in python?

Say I have a list that looks like this: ['item1', 'item2', 'item3', 'item4', 'item5', 'item6', 'item7', 'item8', 'item9', 'item10'] Using Python, how would I grab pairs from it, where each item is included in a pair with both the item before and after it? ['item1', 'item2'] ['item2', 'item3'] ['item3', 'item4'] ['item4', 'item5'] ['i...

Django: Determining if a user has voted or not

I have a long list of links that I spit out using the below code, total votes, submitted by, the usual stuff but I am not 100% on how to determine if the currently logged in user has voted on a link or not. I know how to do this from within my view but do I need to alter my below view code or can I make use of the way templates work to ...

urllib and proxies

Hello, I need in using Tor+Privoxy with my python-script. proxies = { 'http' : '127.0.0.1:8118', 'ssl' : '127.0.0.1:8118', 'socks' : '127.0.0.1:9050' } The first question: is the 'socks' name right? Maybe there should be something like 'socks5'? The next step is that I should pass user-agent string with this proxies to...

pywinauto: taking more than one app windows

I have a GUI application which can create many similar windows on desktop. All windows have same title. I have to enumerate all dialogs with same title and make some tests against each of such dialogs. If I call: dialog = app['Window Name'] pywinauto returns a WindowSpecification object which is useful along with accessing controls b...