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  • How to handle date difference between client and server?

    - by daydreamer
    I have an API which looks like /summary/yyyy/mm Which returns the summary of their data for the year and month requested. One of the things it returns the number of days left if this is current year and month. For example: days_left: 9 for 2013 and 10 and current date on server is 21 Oct 2013 How I calculate remaining days? This is implemented in python as def current_financial_month_details(self): time_from, time_to = self \ .get_start_end_time_current_financial_month() today = datetime.today() from_time = datetime(year=today.year, month=today.month, day=today.day) return { 'time_from': time_from, 'time_to': time_to, 'remaining_days': (time_to - from_time).days } The problem? The server is in east coast and the client(me with browser) is on pacific time zone When its 9PM PST the time changes in east coast, so if I run hit /summary/2013/10 and if it is Oct 21 2013 for me on PST, the date has already changed on EST, so days_left: 8 which is incorrect on client end. right? How do I handle this situation?

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  • How, in general, can web framework support REST style?

    - by juro
    I would like to know, what are the ways a web framework may be suitable for designing a RESTful app, in general. One goal is for example to provide http request routing, so they are automatically sent to appropriate controllers. From architectural point of view, web framework based on MVC pattern are more suitable for REST. What other features of web frameworks are helpful by building apps satisfying the REST constraints? Is there any reason why you consider certain languages(python/java) or web frameworks(django/turbogears/jersey/restlets/...) as the most applicable ones?

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  • How to add http headers in suds 0.3.6?

    - by Esabe
    Hi everyone, I have an application in python 2.5 which sends data through suds 0.3.6. The problem is that the data contains non-ascii characters, so I need the following header to exist in the soap message: Content-Type="text/html; charset="utf-8" and the header that exists in the SOAP message is just: Content-Type="text/html" I know that it is fixed in suds 0.4, but it requires Python2.6 and I NEED Python2.5 because I use CentOS and it needs that version. So the question is: How could I change or add new HTTP headers to a SOAP message?

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  • Text-based one-on-one chat with Flash interface: what to power the backend?

    - by Zachary Burt
    Hey guys. I'm building a website where I hook people up so that they can anonymously vent to strangers. You either choose to be a listener, or a talker, and then you get catapulted into a one-on-one chat room. The reason for the app's construction is because you often can't vent to friends, because your deepest vulnerabilities can often be leveraged against you later on. (Like it or not, this is a part of human nature. Sad.) I'm looking for some insight into how I should architect everything. I found this neat tutorial, http://giantflyingsaucer.com/blog/?p=875, which suggests using python & stackless + flash. Someone else suggested I should try using p2p sockets, but I don't even know where to begin to look for info on that. Any other suggestions? I'd like to keep it simple. :^)

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  • Eclipse + AppEngine =? autocomplete

    - by Brandon Watson
    I was doing some beginner AppEngine dev on a Windows box and installed Eclipse for that. I liked the autocompletion I got with the objects and functions. I moved my dev environment over to my Macbook, and installed Eclipse Ganymede. I installed the AppEngine SDK and Eclipse plug in. However, when I am typing out code now, the autocomplete isn't functioning. Did I miss a step? UPDATE Just to add to this: the line: import cgi appears to give me what I need. When I type "cgi." I get all of the auto complete. However, the lines: from google.appengine.api import users from google.appengine.ext import webapp from google.appengine.ext.webapp.util import run_wsgi_app from google.appengine.ext import db don't give me any auto complete. If I type "users." there is no auto complete.

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  • Downsampling the number of entries in a list (without interpolation)

    - by Dave
    I have a Python list with a number of entries, which I need to downsample using either: A maximum number of rows. For example, limiting a list of 1234 entries to 1000. A proportion of the original rows. For example, making the list 1/3 its original length. (I need to be able to do both ways, but only one is used at a time). I believe that for the maximum number of rows I can just calculate the proportion needed and pass that to the proportional downsizer: def downsample_to_max(self, rows, max_rows): return downsample_to_proportion(rows, max_rows / float(len(rows))) ...so I really only need one downsampling function. Any hints, please? EDIT The list contains objects, not numeric values so I do not need to interpolate. Dropping objects is fine.

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  • Can I db.put models without db.getting them first?

    - by Liron
    I tried to do something like ss = Screenshot(key=db.Key.from_path('myapp_screenshot', 123), name='flowers') db.put([ss, ...]) It seems to work on my dev_appserver, but on live I get this traceback: 05-07 09:50PM 19.964 File "/base/data/home/apps/quixeydev3/12.341796548761906563/common/appenginepatch/appenginepatcher/patch.py", line 600, in put E 05-07 09:50PM 19.964 result = old_db_put(models, *args, **kwargs) E 05-07 09:50PM 19.964 File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/db/init.py", line 1278, in put E 05-07 09:50PM 19.964 keys = datastore.Put(entities, rpc=rpc) E 05-07 09:50PM 19.964 File "/base/python_runtime/python_lib/versions/1/google/appengine/api/datastore.py", line 284, in Put E 05-07 09:50PM 19.965 raise _ToDatastoreError(err) E 05-07 09:50PM 19.965 InternalError: the new entity or index you tried to insert already exists I happen to know just the ID of an existing Screenshot entity I want to update; that's why I was manually constructing its key. Am I doing it wrong?

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  • Facebook access token: server-side vs client-side flows

    - by alexey
    Facebook docs: Facebook Platform supports two different OAuth 2.0 flows for user login: server-side (known as the authentication code flow in the specification) and client-side (known as the implicit flow). The server-side flow is used whenever you need to call the Graph API from your web server. The client-side flow is used when you need to make calls to the Graph API from a client, such as JavaScript running in a Web browser or from a native mobile or desktop app. What is the difference between access tokens taken by these flows? It seems like they length differ. Can we use server-side flow token on a client? And otherwise, can we use client-side flow token on a server?

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  • How to detect identical part(s) inside string?

    - by Horace Ho
    I try to break down the http://stackoverflow.com/questions/2711961/decoding-algorithm-wanted question into smaller questions. This is Part I. Question: two strings: s1 and s2 part of s1 is identical to part of s2 space is separator how to extract the identical part(s)? example 1: s1 = "12 November 2010 - 1 visitor" s2 = "6 July 2010 - 100 visitors" the identical parts are "2010", "-", "1" and "visitor" example 2: s1 = "Welcome, John!" s2 = "Welcome, Peter!" the identical parts are "Welcome," and "!" Python and Ruby preferred. Thanks

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  • Counting vowels in a string using recursion

    - by Daniel Love Jr
    In my python class we are learning about recursion. I understand that it's when a function calls itself, however for this particular assignment I can't figure out how exactly to get my function to call it self to get the desired results. I need to simply count the vowels in the string given to the function. def recVowelCount(s): 'return the number of vowels in s using a recursive computation' vowelcount = 0 vowels = "aEiou".lower() if s[0] in vowels: vowelcount += 1 else: ??? I'm really not sure where to go with this, it's quite frustrating. I came up with this in the end, thanks to some insight from here. def recVowelCount(s): 'return the number of vowels in s using a recursive computation' vowels = "aeiouAEIOU" if s == "": return 0 elif s[0] in vowels: return 1 + recVowelCount(s[1:]) else: return 0 + recVowelCount(s[1:])

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  • Linkedin: Registering Application for both Web and Mobile

    - by VishwaKumar
    My project deals with both Web app and Mobile app. So before we can use Linkedin API's into our project we need to register our app with Linkedin according to this Quick Start. But for my situation where i use Linkedin API's for both web and mobile, Do i need to register two application with Linkedin. Or is there any other way to register a single application and use the same for both web and mobile? In the registration page i don't see any distinction for Web and Mobile, unlike facebook where a single application registered can be used for both web and mobile app. If anyone could point me to appropriate docs or pointers, it would be really helpful. Please forgive me for posting here as there wasn't any appropriate forum to choose from. Thank you.

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  • Universal syntax file format?

    - by Isaiah
    Hey as a project to improve my programing skills I've begun programing a nice code editor in python to teach myself project management, version control, and gui programming. I was wanting to utilize syntax files made for other programs so I could have a large collection already. I was wondering if there was any kind of universal syntax file format much in the same sense as .odt files. I heard of one once in a forum, it had a website, but I can't remember it now. If not I may just try to use gedit syntax files or geany. thanks

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  • Recalling import in module

    - by Isaiah
    I'm still learning python and after playing around with pygame I noticed I'm re-importing things in modules I'm importing that I've already imported. import pygame For instance I have some classes in a separate file, but I must also import pygame into that file too for them to work. Does it actually import the code twice? Will it slow down my program? Or does it just pull the same import from before, but if it does that, why would I need to import it? Is there anything like (load) in lisp that just pulls in the code like it is part of the main file? Thank You

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  • What are some good ways to do intermachine locking?

    - by mike
    Our server cluster consists of 20 machines, each with 10 pids of 5 threads. We'd like some way to prevent any two threads, in any pid, on any machine, from modifying the same object at the same time. Our code's written in Python and runs on Linux, if that helps narrow things down. Also, it's a pretty rare case that two such threads want to do this, so we'd prefer something that optimizes the "only one thread needs this object" case to be really fast, even if it means that the "one thread has locked this object and another one needs it" case isn't great. What are some of the best practices?

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  • How do you position a wx.MessageDialog (wxPython)?

    - by Jason
    Hi: Is there any reason why the position, pos, flag doesn't seem to work in the following example? dlg = wx.MessageDialog( parent=self, message='You must enter a URL', caption='Error', style=wx.OK | wx.ICON_ERROR | wx.STAY_ON_TOP, pos=(200,200) ) dlg.ShowModal() dlg.Destroy() The documentation is here: http://www.wxpython.org/docs/api/wx.MessageDialog-class.html 'self' is a reference to the frame. I'm running in Windows Vista, python26, wxpython28. The message dialog always appears to be in the middle of the screen. If for some reason it's not possible to position the dialog, is there anyway to at least restrict the dialog to be in the frame, rather than just the center of the screen? thanks!

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  • Writing a script to bypass college login page

    - by gtredcvb
    My college has a silly login page that requires you to download a whole bunch of garbage that a lot of us don't need (Norton Anti-virus, Antispyware software, etc.). We have to have them running to get on the internet on campus. Though, if you are on Linux, or at least set your user-agent to linux, the requirements are gone. We could easily use Firefox with the useragent switcher to bypass this, but it'd be nice to create a script that automates this. How would this be possible? I figure this could be written in python, and could grab the webpage with curl specifying a user agent? How would I go about posting the data back to the servers? Thanks

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  • iPhone, special characters in JSON Response

    - by eddit
    Writing an iphone app, and I'm getting my data from a REST API that returns JSON. My problem is, some of the data has special characters embedded and Im getting errors. Example: MartÌn Petite-RiviËre-Saint-FranÁois Here is my current code: NSString *jsonString = [[NSString alloc] initWithData:receivedData encoding:NSUTF8StringEncoding]; NSMutableArray *tempResults = [[[jsonString JSONValue] objectForKey:@"getRegionResortsLastUpdatedResponse"] objectForKey:@"return"]; Whenever the data has special characters in it "jsonString" return "(null)", otherwise everything works fine. Is this something I can handle on my end, or does the API need to be modified to output the character codes?

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  • How to set the value of a wx.combobox by posting an event

    - by Adam Fraser
    The code below demonstrates the problem I am running into. I am creating a wx.ComboBox and trying to mimic it's functionality for testing purposes by posting a wxEVT_COMMAND_COMBOBOX_SELECTED event... this event strangely works fine for wx.Choice, but it doesn't do anything to the ComboBox. There doesn't appear to be a different event that I can post to the combobox, but maybe I'm missing something. I'm running this code on Python 2.5 on a Mac OSX 10.5.8 import wx app = wx.PySimpleApp() def on_btn(evt): event = wx.CommandEvent(wx.wxEVT_COMMAND_COMBOBOX_SELECTED,combobox.Id) event.SetEventObject(combobox) event.SetInt(1) event.SetString('bar') combobox.Command(event) app.ProcessPendingEvents() frame = wx.Frame(None) panel = wx.Panel(frame, -1) # This doesn't work combobox = wx.ComboBox(panel, -1, choices=['foo','bar']) # This works #combobox = wx.Choice(panel, -1, choices=['foo','bar']) combobox.SetSelection(0) btn = wx.Button(panel, -1, 'asdf') btn.Bind(wx.EVT_BUTTON, on_btn) sz = wx.BoxSizer() sz.Add(combobox) sz.Add(btn) panel.SetSizer(sz) frame.Show() app.MainLoop()

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  • reading csv file without for

    - by Abruzzo Forte e Gentile
    Hi All I need to read a CSV file in python. Since for last row I receive a 'NULL byte' error I would like to avoid using for keyword but the while. Do you know how to do that? reader = csv.reader( file ) for row in reader # I have an error at this line # do whatever with row I want to substitute the for-loop with a while-loop so that I can check if the row is NULL or not. What is the function for reading a single row in the CSV module? Thanks Thanks p.S. below the traceback Traceback (most recent call last): File "FetchNeuro_TodayTrades.py", line 189, in for row in reader: _csv.Error: line contains NULL byte

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  • A Combinations of Items in Given List

    - by mecablaze
    Hello stackoverflow, I'm currently in Python land. This is what I need to do. I have already looked into the itertools library but it seems to only do permutations. I want to take an input list, like ['yahoo', 'wikipedia', 'freebase'] and generate every unique combination of one item with zero or more other items... ['yahoo', 'wikipedia', 'freebase'] ['yahoo', 'wikipedia'] ['yahoo', 'freebase'] ['wikipedia', 'freebase'] ['yahoo'] ['freebase'] ['wikipedia'] A few notes. Order does not matter and I am trying to design the method to take a list of any size. Also, is there a name for this kind of combination? Thanks for your help!

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  • Django: Why Doesn't the Current URL Match any Patterns in urls.py

    - by austin_sherron
    I've found a few questions here related to my issue, but I haven't found anything that has helped me resolve my issue. I'm using Python 2.7.5 and Django 1.8.dev20140627143448. I have a view that's interacting with my database to delete objects, and it takes two arguments in addition to a request: def delete_data_item(request, dataclass_id, dataitem_id): form = AddDataItemForm(request.POST) data_set = get_object_or_404(DataClass, pk=dataclass_id) context = {'data_set': data_set, 'form': form} data_item = get_object_or_404(DataItem, pk=dataitem_id) data_item.delete() data_set.save() return HttpResponseRedirect(reverse('detail', args=(dataclass_id,))) The URL in myapp.urls.py looks something like this: url(r'^(?P<dataclass_id>[0-9]+)/(?P<dataitem_id>[0-9]+)/delete_data_item/$', views.delete_data_item, name='delete_data_item') and the portion of my template relevant to the view is: <a href="{% url 'delete_data_item' data_set.id data_item.id %}">DELETE</a> Whenever I click on the DELETE link, django tells me that the request URL: http://127.0.0.1:8000/myapp/5/%7B%%20url%20'delete_data_item'%20data_set.id%20data_item.id%20%%7D doesn't match any of my URL patterns. What am I missing? The URL on which the DELETE links exist is myapp/(<dataclass_id>[0-9]+)/

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  • Pyserial : How to send data to drive SIPO

    - by bino oetomo
    Dear All .. I'm learning to drive a stepper motor with Python. It's hard now to find a PC with paralel port. So My plan is using a USB-Serial .. and a SIPO (serial in parallel out) shift register circuit. As you know with this circuit we need to send a binary data in series and this data will be stored in it's register. Next we need to send another one pulse to make it shift the data out to the out-port. How to do it using pyserial ? Sincerely -bino-

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  • analyzing hashes

    - by calccrypto
    Is anyone willing to devote some time to helping me analyze a (hopefully cryptographically secure) hash? I honestly have no idea what im doing, so i need someone to show me how to, to teach me. almost all of the stuff ive found online have been really long, tedious, and vague the code is in python because for some reason i dont know c/c++. all i know about the hash: 1. there are no collisions (so far) and 2. differences between two similar inputs results in wildly different differences and please dont tell me that if i dont know what im doing, i shouldnt be doing it.

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  • Conventional Approaches for Passing Data to Back-End?

    - by Calvin
    Hi guys, I'm fairly new to web development, so please pardon the painfully newbie question that's about to follow. My computer science class group and I are developing a web application for class, which is built in Python (under Django) and uses jQuery on the front end. It's primarily an AJAX-ified application, and passing data from the backend to the front end is done through AJAX calls to specific URLs which return JSON. This is probably a stupid question, but what's the conventional approach for passing data in the opposite direction? We don't want to reload the page or anything, so is it an AJAX pass going the other way or something? Thanks in advance for your help!

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