Title stringlengths 11 150 | A_Id int64 518 72.5M | Users Score int64 -42 283 | Q_Score int64 0 1.39k | ViewCount int64 17 1.71M | Database and SQL int64 0 1 | Tags stringlengths 6 105 | Answer stringlengths 14 4.78k | GUI and Desktop Applications int64 0 1 | System Administration and DevOps int64 0 1 | Networking and APIs int64 0 1 | Other int64 0 1 | CreationDate stringlengths 23 23 | AnswerCount int64 1 55 | Score float64 -1 1.2 | is_accepted bool 2
classes | Q_Id int64 469 42.4M | Python Basics and Environment int64 0 1 | Data Science and Machine Learning int64 0 1 | Web Development int64 1 1 | Available Count int64 1 15 | Question stringlengths 17 21k |
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Maintain a large dictionary in memory for Django-Python? | 10,597,896 | 1 | 10 | 2,666 | 0 | python,django,dictionary,memcached,redis | 5Mb isn't that large. You could keep it in memory in process, and I recommend that you do, until it becomes clear from profiling and testing that that approach isn't meeting your needs. Always do the simplest thing possible.
Socket communication doesn't of itself introduce much of an overhead. You could probably pare i... | 0 | 0 | 0 | 0 | 2012-05-15T06:13:00.000 | 4 | 0.049958 | false | 10,595,058 | 1 | 0 | 1 | 3 | I have a big key-value pair dump, that I need to lookup for my django-Python webapp.
So, I have following options:
Store it as json dump and load it as a python dict.
Store it in a dump.py and import the dict from it.
Use some targeted systems for this problem: [ Are these really meant for this usecase ? ]
Mem-cache
... |
Maintain a large dictionary in memory for Django-Python? | 10,595,177 | 1 | 10 | 2,666 | 0 | python,django,dictionary,memcached,redis | In past for a similar problem I have used the idea of a dump.py . I would think that all of the other data structures would require a layer to convert objects of one kind into python objects . However I would still think that this would depend on data size and the amount of data you are handling . Memcache and redis ... | 0 | 0 | 0 | 0 | 2012-05-15T06:13:00.000 | 4 | 0.049958 | false | 10,595,058 | 1 | 0 | 1 | 3 | I have a big key-value pair dump, that I need to lookup for my django-Python webapp.
So, I have following options:
Store it as json dump and load it as a python dict.
Store it in a dump.py and import the dict from it.
Use some targeted systems for this problem: [ Are these really meant for this usecase ? ]
Mem-cache
... |
Maintain a large dictionary in memory for Django-Python? | 10,595,172 | 2 | 10 | 2,666 | 0 | python,django,dictionary,memcached,redis | Memcached, though a great product, is trumped by Redis in my book. It offers lots of things that memcached doesn't, like persistence.
It also offers more complex data structures like hashses. What is your particular data dump? How big is it, and how large / what type of values? | 0 | 0 | 0 | 0 | 2012-05-15T06:13:00.000 | 4 | 0.099668 | false | 10,595,058 | 1 | 0 | 1 | 3 | I have a big key-value pair dump, that I need to lookup for my django-Python webapp.
So, I have following options:
Store it as json dump and load it as a python dict.
Store it in a dump.py and import the dict from it.
Use some targeted systems for this problem: [ Are these really meant for this usecase ? ]
Mem-cache
... |
python google app engine programming | 10,603,141 | 3 | 1 | 116 | 0 | python,google-app-engine | On App Engine, I think the best way to do this is to store the total pages inside the Shelf. Add an IntegerProperty field to the shelf, I'll call it totalPages. Every time you add or remove a book to the shelf, update totalPages appropriately. Note that this will need to be done in a transaction.
Then it's easy to... | 0 | 0 | 0 | 0 | 2012-05-15T08:38:00.000 | 1 | 1.2 | true | 10,597,019 | 0 | 0 | 1 | 1 | I have 2 models > Shelf and Book in my models.py. The model Book has a field ReferenceProperty(Shelf), it also has a IntegerProperty field that stores the no. of pages in the book. What i am trying to achieve is to get a list of Top 25 Shelf Names according to highest number of Pages (which should be the sum of pages o... |
How to access a specific start_url in a Scrapy CrawlSpider? | 10,611,818 | 3 | 7 | 5,316 | 0 | python,django,scrapy | If I understand correctly the problem, You can get url from response.url and then write to item['url'].
In Spider: item['url'] = response.url
And in pipeline: url = item['url'].
Or put response.url into meta as warvariuc wrote. | 0 | 0 | 0 | 0 | 2012-05-15T10:22:00.000 | 4 | 0.148885 | false | 10,598,691 | 0 | 0 | 1 | 2 | I'm using Scrapy, in particular Scrapy's CrawlSpider class to scrape web links which contain certain keywords. I have a pretty long start_urls list which gets its entries from a SQLite database which is connected to a Django project. I want to save the scraped web links in this database.
I have two Django models, one f... |
How to access a specific start_url in a Scrapy CrawlSpider? | 43,817,221 | 1 | 7 | 5,316 | 0 | python,django,scrapy | Looks like warvariuc's answer requires a slight modification as of Scrapy 1.3.3: you need to override _parse_response instead of parse. Overriding make_requests_from_url is no longer necessary. | 0 | 0 | 0 | 0 | 2012-05-15T10:22:00.000 | 4 | 0.049958 | false | 10,598,691 | 0 | 0 | 1 | 2 | I'm using Scrapy, in particular Scrapy's CrawlSpider class to scrape web links which contain certain keywords. I have a pretty long start_urls list which gets its entries from a SQLite database which is connected to a Django project. I want to save the scraped web links in this database.
I have two Django models, one f... |
debugging and intellisensing pyramid application | 10,601,595 | 2 | 1 | 616 | 0 | python,debugging,intellisense,pyramid | To my mind there's two viable option out there.
I use both actually.
Eclipse + Aptana Studio + Pydev or Aptana Studio
Pros
Free
Decent auto completion (IntelliSense like system)
More plug-ins (since it's based on eclipse)
Support django template
Cons
relatively poor html editor
no mako or jinja2 support (as far as I k... | 0 | 0 | 0 | 0 | 2012-05-15T12:48:00.000 | 1 | 0.379949 | false | 10,601,010 | 1 | 0 | 1 | 1 | There is a wonderful video on youtube where it is explained how to debug Django applications with Python Tools for Visual Studio.
I wonder if the same thing is possible with the Pyramid applications? Moreover I would love to use VS' IntelliSense (hinting system) while writing for the Pyramid framework.
Or may be there ... |
How is twisted's Deferred implemented? | 10,624,853 | 3 | 2 | 673 | 0 | python,asynchronous,twisted,twisted.web | As others have said, a Deferred on its own is just a promise of a value, and a list of things to do when the value arrives (or when there is a failure getting the value).
How they work is like this: some function sees that the value it wants to return is not yet ready. So it prepares a Deferred, and then arranges someh... | 0 | 1 | 0 | 0 | 2012-05-15T15:58:00.000 | 2 | 0.291313 | false | 10,604,523 | 0 | 0 | 1 | 1 | Does it spawn a new thread underneath? If classical web server spawns a thread to serve a HTTP request and with Twisted web I have to spawn a Deferred() each time I want to query mysql - where's the gain? Looks like it doesn't make sens if it spawned a thread, so how's it implemented? |
Compare two couchdb databases | 10,616,421 | 1 | 1 | 685 | 1 | couchdb,replication,couchdb-python | If you want to make sure they're exactly the same, write a map job that emits the document path as the key, and the documents hash (generated any way you like) as the value. Do not include the _rev field in the hash generation.
You cannot reduce to a single hash because order is not guaranteed, but you can feed the res... | 0 | 0 | 0 | 0 | 2012-05-16T09:45:00.000 | 1 | 1.2 | true | 10,615,980 | 0 | 0 | 1 | 1 | I have a couchdb instance with database a and database b. They should contain identical sets of documents, except that the _rev property will be different, which, AIUI, means I can't use replication.
How do I verify that the two databases really do contain the same documents which are all otherwise 'equal'?
I've tried ... |
Django HTML quality and tutorials | 10,629,574 | 0 | 1 | 282 | 0 | html,django,python-3.x | I can share my experience with you as I have recently learned Django.
Instead of following any book you should try to use the Django documentation and also dont be afraid to look at the source code, it will help you to understand how things are working behind the scene. | 0 | 0 | 0 | 0 | 2012-05-16T16:18:00.000 | 2 | 0 | false | 10,622,581 | 0 | 0 | 1 | 1 | Hey I recently heard about Django, and will hopefully be moving on to learn an HTML type platform. I am currently learning python 3 and wanted to know if Django, especially recent editions, are the "best" ( sorry about the arbitrariness of that).
Plus I was hoping to know any good books / tutorials for django or any o... |
convert python time.time() to java.nanoTime() | 10,627,094 | 0 | 5 | 3,163 | 0 | java,python,nanotime | Divide the output of System.nanoTime() by 10^9. This is because it is in nanoseconds, while the output of time.time() is in seconds. | 0 | 0 | 0 | 0 | 2012-05-16T21:36:00.000 | 3 | 0 | false | 10,627,055 | 0 | 0 | 1 | 1 | java's System.nanoTime() seems to give a long: 1337203874231141000L
while python time.time() will give something like 1337203880.462787
how can i convert time.time()'s value to something match up to System.nanoTime()? |
Digest authentication in django | 10,635,489 | -1 | 1 | 1,753 | 0 | python,django,authentication,hash,digest | AES is not a hashing algorithm. It's an encryption algorithm.
You can use hashing algorithms like SHA1 or MD5. | 0 | 0 | 0 | 0 | 2012-05-17T11:50:00.000 | 2 | -0.099668 | false | 10,635,212 | 0 | 0 | 1 | 1 | As far as my knowledge says in digest authentication, a client does an irreversible computation, using the password and a random value supplied by the server as input values. The result is transmitted to the server who does the same computation and authenticates the client if he arrives at the same value. Since the com... |
Python psycopg2 + mod_wsgi: connection is very slow and automatically close | 10,645,670 | 1 | 0 | 450 | 1 | python,web-services,apache2,mod-wsgi,psycopg2 | If you are using mod_wsgi in embedded moe, especially with preform MPM for Apache, then likely that Apache is killing off the idle processes. Try using mod_wsgi daemon mode, which keeps process persistent and see if it makes a difference. | 0 | 0 | 0 | 1 | 2012-05-17T13:12:00.000 | 1 | 0.197375 | false | 10,636,409 | 0 | 0 | 1 | 1 | I have made a python ladon webservice and I run is on Ubuntu with Apache2 and mod_wsgi. (I use Python 2.6).
The webservice connect to a postgreSQL database with psycopg2 python module.
My problem is that the psycopg2.connection is closed (or destroyed) automatically after a little time (after about 1 or 2 minutes).
Th... |
Creating a KhanAcademy clone via Google App Engine - issues with application name in app.yaml | 10,637,991 | 3 | 2 | 1,290 | 0 | python,google-app-engine,clone | The problem is that your 'clone' application does not have access to Khans Academy's AppEngine datastore so there is no content to display. Even if you do use all of the code for their application, you are still going to have to generate all of your own content.
Even if you are planning to 'clone' their content, too, y... | 0 | 1 | 0 | 0 | 2012-05-17T14:27:00.000 | 1 | 0.53705 | false | 10,637,637 | 0 | 0 | 1 | 1 | I'm trying to create a KhanAcademy (KA) clone on Google App Engine (GAE). I downloaded the offline version of KA (http://code.google.com/p/khanacademy/downloads/list) for Mac, and set it up with GoogleAppEngineLauncher (https://developers.google.com/appengine/). Because KA was produced on Python 2.5, I have the setup r... |
Localhost Server Refusing Connection | 10,641,540 | 11 | 6 | 31,050 | 0 | python,django,localhost,port | You need to know your server's IP or domain address. If you used example.com to access you server SSH, then launching Django with
./manage.py runserver 0.0.0.0:8002
and accessing it with http://example.com:8002 should work. But if you only know IP, then launch Django with that IP instead of
0.0.0.0
and access it wi... | 0 | 0 | 0 | 0 | 2012-05-17T17:41:00.000 | 2 | 1.2 | true | 10,640,720 | 0 | 0 | 1 | 1 | I just set up Django on a dreamhost server. Ran through everything, but can't seem to get the welcome page. I got to the point where it says "Development server is running at 127.0.0.1:8002 (tried with 8000 but got the "that port is already in use error). When I try to access that address in my browser in Chrome I get ... |
Django path in Mac OS X | 10,643,577 | 1 | 0 | 906 | 0 | python,django | It needs to go in $PYTHONPATH instead. Create that variable if it's not already defined. | 0 | 0 | 0 | 0 | 2012-05-17T21:05:00.000 | 1 | 1.2 | true | 10,643,506 | 1 | 0 | 1 | 1 | I installed django and want to specify its path in my mac, and I put the path into .profile and also checked with $PATH to ensure that is specified. However, when I go to python's environment and type import django, it cannot find. Have no idea about that. Any suggestions? |
Flask SQLAlchemy not picking up changed records | 15,194,364 | 1 | 1 | 326 | 1 | python,flask-sqlalchemy | you app's SELECT is probably within its own transaction / session so changes submitted by another session (e.g. MySQL Workbench connection) are not yet visible for your SELECT. You can easily verify it by enabling mysql general log or by setting 'echo: false' in your create_engine(...) definition. Chances are you're st... | 0 | 0 | 0 | 0 | 2012-05-18T01:57:00.000 | 1 | 0.197375 | false | 10,645,793 | 0 | 0 | 1 | 1 | I'm seeing some unexpected behaviour with Flask-SQLAlchemy, and I don't understand what's going on:
If I make a change to a record using e.g. MySQL Workbench or Sequel Pro, the running app (whether running under WSGI on Apache, or from the command line) isn't picking up the change. If I reload the app by touching the W... |
Mark Out Multiple Delivery Zones on Google Map and Store in Database | 10,648,479 | 1 | 0 | 667 | 1 | python,django,postgresql,google-maps,postgis | "Using Python and Django" only, you're not going to do this. Obviously you're going to need Javascript.
So you may as well dump Google Maps and use an open-source web mapping framework. OpenLayers has a well-defined Javascript API which will let you do exactly what you want. Examples in the OpenLayers docs show how.
Yo... | 0 | 0 | 0 | 0 | 2012-05-18T06:01:00.000 | 2 | 0.099668 | false | 10,647,482 | 0 | 0 | 1 | 1 | Background:
I'm trying to use a Google Map as an interface to mark out multiple polygons, that can be stored in a Postgres Database.
The Database will then be queried with a geocoded Longitude Latitude Point to determine which of the Drawn Polygons encompass the point.
Using Python and Django.
Question
How do I configu... |
python web extraction of iframe (ajax ) content | 10,663,615 | 1 | 1 | 1,272 | 0 | python,web-scraping | Splinter (http://splinter.cobrateam.info - uses selenium) makes browsing iframe elements easy. At least as long iframe tag has id attribute. | 0 | 0 | 1 | 0 | 2012-05-18T10:10:00.000 | 2 | 0.099668 | false | 10,650,676 | 0 | 0 | 1 | 1 | I am working on python web scraping
The web page is polluted using iframe and the content is filled by ajax(jquery)
I have tried using src of iframe(using lxml,.) but its of no use
How can i extract the content of the iframe using python modules
Thanks |
Simulating the passing of time in unittesting | 10,653,559 | 4 | 20 | 3,901 | 0 | python,testing,mocking,integration-testing,celery | Without the use of a special mock library, I propose to prepare the code for being in mock-up-mode (probably by a global variable). In mock-up-mode instead of calling the normal time-function (like time.time() or whatever) you could call a mock-up time-function which returns whatever you need in your special case.
I w... | 0 | 1 | 0 | 1 | 2012-05-18T11:48:00.000 | 3 | 0.26052 | false | 10,652,097 | 0 | 0 | 1 | 1 | I've built a paywalled CMS + invoicing system for a client and I need to get more stringent with my testing.
I keep all my data in a Django ORM and have a bunch of Celery tasks that run at different intervals that makes sure that new invoices and invoice reminders get sent and cuts of access when users don't pay their ... |
Django: How to manage development and production settings? | 69,156,705 | 0 | 184 | 106,539 | 0 | python,django | You're probably going to use the wsgi.py file for production (this file is created automatically when you create the django project). That file points to a settings file. So make a separate production settings file and reference it in your wsgi.py file. | 0 | 0 | 0 | 0 | 2012-05-19T10:12:00.000 | 19 | 0 | false | 10,664,244 | 0 | 0 | 1 | 2 | I have been developing a basic app. Now at the deployment stage it has become clear I have need for both a local settings and production settings.
It would be great to know the following:
How best to deal with development and production settings.
How to keep apps such as django-debug-toolbar only in a development env... |
Django: How to manage development and production settings? | 71,316,114 | 0 | 184 | 106,539 | 0 | python,django | What we do here is to have an .ENV file for each environment. This file contains a lot of variables like ENV=development
The settings.py file is basically a bunch of os.environ.get(), like ENV = os.environ.get('ENV')
So when you need to access that you can do ENV = settings.ENV.
You would have to have a .env file for y... | 0 | 0 | 0 | 0 | 2012-05-19T10:12:00.000 | 19 | 0 | false | 10,664,244 | 0 | 0 | 1 | 2 | I have been developing a basic app. Now at the deployment stage it has become clear I have need for both a local settings and production settings.
It would be great to know the following:
How best to deal with development and production settings.
How to keep apps such as django-debug-toolbar only in a development env... |
Django: How to you organise static pages in apps? | 10,668,094 | 0 | 1 | 1,228 | 0 | python,django,static | I put them in a 'business' app. I feel there is no need to overthink it really. | 0 | 0 | 0 | 0 | 2012-05-19T13:11:00.000 | 3 | 0 | false | 10,665,475 | 0 | 0 | 1 | 1 | Its said to keep each functionality as an app and keep it as pluggable as possible.
So,
How do you organise pages like :
Homepage
About Us
Contact Us
etc
These are not exactly functionality, so does django devs manage these ? |
Eclipse plugin that just runs a python script | 10,856,306 | 1 | 2 | 1,884 | 0 | python,eclipse-plugin,eclipse-pde | You can already create an External Launch config from Run>External Tools>External Tools Configurations. You are basically calling the program from eclipse. Any output should then show up in the eclipse Console view. External launch configs can also be turned into External Builders and attached to projects.
If you ar... | 0 | 1 | 0 | 1 | 2012-05-19T13:55:00.000 | 1 | 1.2 | true | 10,665,768 | 0 | 0 | 1 | 1 | I want to generate an Eclipse plugin that just runs an existing Python script with parameters.
While this sounds very simple, I don't think it's easy to implement. I can generate a Eclipse plugin. My issue is not how to use PDE. But:
can I call the existing Python script from Java, from an Eclipse plugin?
it needs to ... |
Include needed for Python/Django | 10,670,224 | 0 | 0 | 119 | 0 | python,django,include | This isn't rocket science.
Create a constants file, say constants.txt. Put name/value pairs in that file in an easily-parseable format. For example name:value. Write a small program in your language of choice (Python would be great for this). This program reads in constants.txt, and then writes out an appropriate f... | 0 | 0 | 0 | 0 | 2012-05-19T23:46:00.000 | 3 | 0 | false | 10,669,677 | 0 | 0 | 1 | 1 | First, let me preface this by saying I am brand new to both Python and Django. I would like to be using a language I already know, like and prefer, alas the frameworks simply don't exist for them. Bottom line, I'm no "pythonista."
At any rate, I'm on the first couple of pages of a Django tutorial, and am at the point... |
Where are dependent libraries stored in Heroku? | 10,670,227 | 4 | 5 | 1,969 | 0 | python,django,heroku,dependencies | The short answer is that the site packages live in /app/.heroku/venv/lib/python2.7/site-packages. If you want to take a look around you can open a remote shell using `heroku run -app [app_name] bash'. However, you probably don't want to just edit the packages in place since there's no guarantee that heroku won't wip... | 0 | 0 | 0 | 0 | 2012-05-20T01:08:00.000 | 2 | 1.2 | true | 10,670,022 | 1 | 0 | 1 | 1 | I've launched my app on Heroku but need to change one of the files of one the dependent libs that I installed in the requirements.txt file.
On my local machine, this would just be in my virtual environment in lib > python2.7 > site-packages etc.
Where are these dependencies stored within Heroku's file structure? When I... |
Python module for google search in GAE | 10,671,099 | 1 | 0 | 143 | 0 | python,google-app-engine,python-module | There is no official library for what you're trying to do, and the Google Terms of Service prohibit using automated tools to 'scrape' search results. | 0 | 1 | 0 | 0 | 2012-05-20T02:26:00.000 | 1 | 1.2 | true | 10,670,325 | 0 | 0 | 1 | 1 | I am trying to build an application in GAE using python. I needs to do is give the query received from user and give it to Google search and return the answer in a formatted way to the user. I found lots of questions asked here. But couldn't get a clear answer regarding my requirements. My needs are
Needs to process la... |
How to gracefully shutdown any WSGI server? | 10,671,041 | 4 | 3 | 1,133 | 0 | python,http,wsgi | HTTPd has the graceful-stop predicate for -k that will allow it to bring down any workers after they have completed their request. mod_wsgi is required to make it a WSGI container. | 0 | 0 | 0 | 0 | 2012-05-20T05:24:00.000 | 1 | 0.664037 | false | 10,671,004 | 0 | 0 | 1 | 1 | I've been experimenting with several WSGI servers and am unable to find a way for them to gracefully shut down. What I mean by graceful is that the server stops listen()'ing for new requests, but finishes processing all connections that have been accept()'ed. The server process then exits.
So far I have spent some time... |
Which database model should I use for dynamic modification of entities/properties during runtime? | 10,792,940 | 6 | 20 | 4,158 | 1 | python,database,dynamic,sqlalchemy,redis | What you're asking about is a common requirement in many systems -- how to extend a core data model to handle user-defined data. That's a popular requirement for packaged software (where it is typically handled one way) and open-source software (where it is handled another way).
The earlier advice to learn more about ... | 0 | 0 | 0 | 0 | 2012-05-20T11:16:00.000 | 4 | 1 | false | 10,672,939 | 0 | 0 | 1 | 2 | I am thinking about creating an open source data management web application for various types of data.
A privileged user must be able to
add new entity types (for example a 'user' or a 'family')
add new properties to entity types (for example 'gender' to 'user')
remove/modify entities and properties
These will be ... |
Which database model should I use for dynamic modification of entities/properties during runtime? | 10,707,420 | 3 | 20 | 4,158 | 1 | python,database,dynamic,sqlalchemy,redis | So, if you conceptualize your entities as "documents," then this whole problem maps onto a no-sql solution pretty well. As commented, you'll need to have some kind of model layer that sits on top of your document store and performs tasks like validation, and perhaps enforces (or encourages) some kind of schema, becaus... | 0 | 0 | 0 | 0 | 2012-05-20T11:16:00.000 | 4 | 1.2 | true | 10,672,939 | 0 | 0 | 1 | 2 | I am thinking about creating an open source data management web application for various types of data.
A privileged user must be able to
add new entity types (for example a 'user' or a 'family')
add new properties to entity types (for example 'gender' to 'user')
remove/modify entities and properties
These will be ... |
Sync message to twitter in background in a web application | 10,674,012 | 0 | 1 | 56 | 0 | python | either you choose zrxq's solution, or you can do that with a thread, if you take care of two things:
you don't tamper with objects from the main thread (be careful of iterators),
you take good care of killing your thread once the job is done.
something that would look like :
import threading
class TwitterT... | 0 | 0 | 0 | 1 | 2012-05-20T12:06:00.000 | 1 | 1.2 | true | 10,673,245 | 0 | 0 | 1 | 1 | I'm writing an web app. Users can post text, and I need to store them in my DB as well as sync them to a twitter account.
The problem is that I'd like to response to the user immediately after inserting the message to DB, and run the "sync to twitter" process in background.
How could I do that? Thanks |
Can django-tastypie display a different set of fields in the list and detail views of a single resource? | 24,058,617 | 0 | 11 | 5,626 | 0 | python,django,tastypie | Can also use the dehydrate(self, bundle) method.
def dehydrate(self, bundle):
del bundle.data['attr-to-del]
return bundle | 0 | 0 | 0 | 0 | 2012-05-21T22:14:00.000 | 4 | 0 | false | 10,693,379 | 0 | 0 | 1 | 1 | I would like for a particular django-tastypie model resource to have only a subset of fields when listing objects, and all fields when showing a detail. Is this possible? |
queues remain unknown or just don't know how to call them | 10,698,246 | 1 | 1 | 178 | 0 | python,google-app-engine | If your are running a unitest and using init_taskqueue_stub() you need to pass the path of the queue.yaml when calling it using the root_path parameter. | 0 | 1 | 0 | 0 | 2012-05-22T07:32:00.000 | 1 | 0.197375 | false | 10,697,651 | 0 | 0 | 1 | 1 | I've added a new queue to a python GAE app, and would like to add tasks to it, but always get an UnknownQueueError when I run my tests. On the other hand, I see the queue present in the GAE admin console (both local and remote). So the question is (1) do I miss something when I add a task to my queue? (2) if not, then ... |
is it possible to have two submit button for one form? | 10,697,999 | 0 | 3 | 2,325 | 0 | python,html,web2py | Yes it is possible in the incoming request is the name of the pressed button. | 0 | 0 | 0 | 0 | 2012-05-22T07:44:00.000 | 3 | 0 | false | 10,697,843 | 0 | 0 | 1 | 1 | I am using web2py to write a search engine like app. Is it possible to implement two submit button for one form such as google has two buttons "search" and "I am feeling lucky". Thanks in advance. |
Get started with pystache | 10,703,762 | 3 | 1 | 617 | 0 | python | Pystache is a template library not http server! If you want make webapp try to use ready-made webframeworks like Django or Pyramid. | 0 | 0 | 0 | 0 | 2012-05-22T14:00:00.000 | 1 | 1.2 | true | 10,703,616 | 0 | 0 | 1 | 1 | This is really a newbie question, but I don't know how to search answers for this. I want to use pystache, and I am able to execute the .py file to print out some rendered output from .mustache file. but how exactly do I convert this into .html file? Specifically, how to put it on the server so that the browser would d... |
Is there feature in Pyramid to specify a route in the template like Django templates? | 10,730,436 | 10 | 3 | 1,122 | 0 | python,pyramid | The brackets depend on the templating engine you are using, but request.route_url('home') is the Python code you need inside.
For example, in your desired template file:
jinja2--> {{ request.route_url('home') }}
mako/chameleon--> ${ request.route_url('home') }
If your route definition includes pattern matching, such ... | 0 | 0 | 0 | 0 | 2012-05-23T21:44:00.000 | 1 | 1.2 | true | 10,728,333 | 0 | 0 | 1 | 1 | For example in Django if I have a url named 'home' then I can put {% url home %} in the template and it will navigate to that url. I couldn't find anything specific in the Pyramid docs so I am looking to tou Stack Overflow.
Thanks |
Using a Ruby gem from a Django application | 10,736,225 | 7 | 2 | 333 | 0 | python,ruby-on-rails,ruby,django,interop | I suggest you either:
Expose a ruby service using REST or XML-RPC.
or
Shell out to a ruby script from Django.
To transfer data between Python and Ruby I suggest you use JSON, XML or plain text (depending on what kind of data you need to transfer).
I would recommend to use option 2 (start a ruby script from the Pyt... | 0 | 0 | 0 | 0 | 2012-05-24T10:50:00.000 | 2 | 1.2 | true | 10,735,998 | 0 | 0 | 1 | 2 | Lets say I have a few Ruby gems that I'd like to use from my Python (Django) application. I know this isn't the most straightforward question but let's assume that rewriting the Ruby gem in Python is a lot of work, how can I use it?
Should I create an XML-RPC wrapper around it using Rails and call it? Is there somethin... |
Using a Ruby gem from a Django application | 10,737,263 | 3 | 2 | 333 | 0 | python,ruby-on-rails,ruby,django,interop | It depends a little on what you need to do. The XML-RPC suggestion has already been made.
You might actually be able to use them together in a JVM, assuming you can accept running Django with jython and use jruby. But that is a bit of work, which may or may not be worth the effort.
It would perhaps be easier if you de... | 0 | 0 | 0 | 0 | 2012-05-24T10:50:00.000 | 2 | 0.291313 | false | 10,735,998 | 0 | 0 | 1 | 2 | Lets say I have a few Ruby gems that I'd like to use from my Python (Django) application. I know this isn't the most straightforward question but let's assume that rewriting the Ruby gem in Python is a lot of work, how can I use it?
Should I create an XML-RPC wrapper around it using Rails and call it? Is there somethin... |
Do CSRF attacks apply to API's? | 16,702,510 | 19 | 69 | 32,350 | 0 | python,django,api,security | They do apply if you're also using your API to support a website.
In this case you still need some form of CSRF protection to prevent someone embedding requests in other sites to have drive-by effects on an authenticated user's account.
Chrome seems to deny cross-origin POST requests by default (other browsers may not ... | 0 | 0 | 0 | 0 | 2012-05-24T16:14:00.000 | 5 | 1 | false | 10,741,339 | 0 | 0 | 1 | 2 | I'm writing a Django RESTful API to back an iOS application, and I keep running into Django's CSRF protections whenever I write methods to deal with POST requests.
My understanding is that cookies managed by iOS are not shared by applications, meaning that my session cookies are safe, and no other application can ride ... |
Do CSRF attacks apply to API's? | 10,741,650 | 72 | 69 | 32,350 | 0 | python,django,api,security | That's not the purpose of CSRF protection. CSRF protection is to prevent direct posting of data to your site. In other words, the client must actually post through an approved path, i.e. view the form page, fill it out, submit the data.
An API pretty much precludes CSRF, because its entire purpose is generally to allow... | 0 | 0 | 0 | 0 | 2012-05-24T16:14:00.000 | 5 | 1.2 | true | 10,741,339 | 0 | 0 | 1 | 2 | I'm writing a Django RESTful API to back an iOS application, and I keep running into Django's CSRF protections whenever I write methods to deal with POST requests.
My understanding is that cookies managed by iOS are not shared by applications, meaning that my session cookies are safe, and no other application can ride ... |
Python multiple processes instead of threads? | 10,743,293 | 1 | 2 | 624 | 0 | python,multithreading,multiprocess | First, profile your code to determine what is bottlenecking your performance.
If each of your threads are frequently writing to your MySQL database, the problem may be disk I/O, in which case you should consider using an in-memory database and periodically write it to disk.
If you discover that CPU performance is the l... | 0 | 0 | 0 | 0 | 2012-05-24T17:56:00.000 | 2 | 0.099668 | false | 10,742,820 | 1 | 0 | 1 | 1 | I am working on a web backend that frequently grabs realtime market data from the web, and puts the data in a MySQL database.
Currently I have my main thread push tasks into a Queue object. I then have about 20 threads that read from that queue, and if a task is available, they execute it.
Unfortunately, I am running ... |
Access Win32 dll on Google App Engine? | 10,743,291 | 6 | 0 | 191 | 0 | python,winapi,google-app-engine,licensing | Nope, App Engine's python runtime only supports pure python modules. Wrapped native code modules won't work. | 0 | 1 | 0 | 0 | 2012-05-24T18:21:00.000 | 1 | 1.2 | true | 10,743,158 | 0 | 0 | 1 | 1 | BACKGROUND:
I work on a small team in a large company where I'm currently revamping the licensing system for a suite of mixed .Net and Win32 products that I update annually. Each product references a win32 .dll for product validation. I only have the binary file and the header file for the licensing module (so no hash ... |
My page loads fine on pc or Mac but totally disappears on iPad or iPhone with iOS 5.1.1 | 10,743,917 | 1 | 0 | 428 | 0 | iphone,python,html,ios,ipad | Use safari under developer mode as an iOS device to determine the root cause. After looking at what is happening, I bet your social loading code has changed something remotely, specifically, the fb-root tag that is warned about in the error console. Start there by disabling the social network stuff and start debugging.... | 0 | 0 | 0 | 0 | 2012-05-24T19:14:00.000 | 1 | 1.2 | true | 10,743,884 | 0 | 0 | 1 | 1 | After upgrading to ios 5.1.1 from 4.2.1, my page www.zolkan.com loads and immediately disappears showing a blank gray page. I did not change anything on my page for over a year.
Before upgrading my iPhone from 4.2.1 to 5.1.1, it loaded fine. Same was with my iPad running 5.0.1... After going to 5.1.1, the page loads an... |
How can I bring all the used ASCII characters of a file into a dictionary/array/list and assign each character a value? | 10,748,050 | 1 | 0 | 417 | 0 | java,python | Each byte is a number from 0 to 255. An array containing those numbers is, precisely, an array containing the contents of the file. I'm not at all clear on what you want to do with this array (or dictionary, etc) but making it is going to be easy. | 0 | 0 | 0 | 1 | 2012-05-25T03:12:00.000 | 3 | 0.066568 | false | 10,748,021 | 1 | 0 | 1 | 2 | I basically want to read a file (could be an mp3 file or whatever). Scan the file for all the used ASCII characters of the file and put them into an dictionary, array or list. And then from there assign each character a number value.
For example:
Let's say I load in the file blabla.mp3
(Obviously this type of file is e... |
How can I bring all the used ASCII characters of a file into a dictionary/array/list and assign each character a value? | 10,748,060 | 0 | 0 | 417 | 0 | java,python | Each byte you read in already is a value between 0 and 255 (thus a byte). Is there a reason you can't just use that? | 0 | 0 | 0 | 1 | 2012-05-25T03:12:00.000 | 3 | 0 | false | 10,748,021 | 1 | 0 | 1 | 2 | I basically want to read a file (could be an mp3 file or whatever). Scan the file for all the used ASCII characters of the file and put them into an dictionary, array or list. And then from there assign each character a number value.
For example:
Let's say I load in the file blabla.mp3
(Obviously this type of file is e... |
python eclipse dependency plugin - m2eclipse like | 10,803,047 | 0 | 0 | 195 | 0 | python,eclipse,pydev | The only one so far I found available is PyFlakes, it does some level of dependency check and import validations. | 0 | 1 | 0 | 0 | 2012-05-25T12:32:00.000 | 2 | 0 | false | 10,754,496 | 0 | 0 | 1 | 1 | Is there any eclipse plugin for python dependency management? just like what M2Eclipse does for maven project? so I can resolve all the dependencies and get ride off all the errors when I develop python using pydev.
If there is no such plugin, how do I resolve the dependencies, do I have to install the dependency modul... |
SHA 512 Password with webapp2 and App Engine? | 10,780,404 | 2 | 1 | 827 | 0 | python,google-app-engine,webapp2 | As you observe, the default User model doesn't provide any way to customize the hash function being used. You could subclass it and redefine the problematic methods to take a hash parameter, or file a feature request with the webapp2 project.
Webapp2's password hashing has much bigger issues, though, as it doesn't do p... | 0 | 1 | 0 | 0 | 2012-05-27T05:55:00.000 | 1 | 1.2 | true | 10,771,973 | 0 | 0 | 1 | 1 | If you are using webapp2 with Google App Engine you can see there is only one way to create an user with the "create_user" method [auth/models.py line:364]
But that method call to "security.generate_password_hash" method where in not possible use SHA 512
Q1: I would like to know what is the best way to create a SHA 512... |
PyDev for App Engine - re-import External Libs | 10,773,714 | 0 | 0 | 149 | 0 | python,eclipse,google-app-engine,pydev | If you create a new project, you get all the new libs. Move your existing (imported) sources to this new project. | 0 | 1 | 0 | 0 | 2012-05-27T11:33:00.000 | 1 | 1.2 | true | 10,773,667 | 0 | 0 | 1 | 1 | I have a project which I created 2 years ago. I need to work on it again, and didn't have it in my Eclipse Workspace so I downloaded it from git and did an import existing projects into workspace. All worked well, except I notice the External Libraries do not contain all the new libraries added to the SDK since I creat... |
In app engine, can I call "get_or_insert" from inside a transaction? | 10,791,742 | 2 | 2 | 308 | 1 | python,google-app-engine | No. get_or_insert is syntactic sugar for a transactional function that fetches or inserts a record. You can implement it yourself trivially, but that will only work if the record you're operating on is in the same entity group as the rest of the entities in the current transaction, or if you have cross-group transactio... | 0 | 1 | 0 | 0 | 2012-05-28T21:01:00.000 | 2 | 0.197375 | false | 10,790,381 | 0 | 0 | 1 | 1 | In google app engine, can I call "get_or_insert" from inside a transaction?
The reason I ask is because I'm not sure if there is some conflict with having this run its own transaction inside an already running transaction.
Thanks! |
Django & AJAX Changing Div Contents | 10,795,821 | 1 | 0 | 522 | 0 | python,ajax,django,web-applications | Simply return the rendered template fragment. You don't need to do anything special. Your Javascript can then just insert it into the DOM at the relevant point. | 0 | 0 | 0 | 0 | 2012-05-29T04:59:00.000 | 1 | 1.2 | true | 10,793,272 | 0 | 0 | 1 | 1 | My website have submenus for sections. What I want to do is, when users click the submenu, the content changes accordingly. For example, if user clicks "Pen", the contents of the shall be list of pens, clicks "Eraser" , contents shall be eraser list.
How can I achieve this by using Django template and ajax? I know th... |
Where do I put cleanup code in a Flask application? | 10,798,159 | 3 | 8 | 4,055 | 0 | python,flask | The atexit module allows you to register program termination callbacks. Its callbacks won't be called however if the application is terminated by a signal. If you need to handle those cases, you can register the same callbacks with the signal module (for instance you might want to handle the SIGTERM signal).
I may hav... | 0 | 0 | 0 | 0 | 2012-05-29T07:51:00.000 | 1 | 1.2 | true | 10,795,095 | 0 | 0 | 1 | 1 | I'm new to web development in Python and I've chosen Flask to start my web application. I have some resources to free before application shutdown, but I couldn't find where to put my cleanup code.
Flask provides some decorators like before_request and teardown_request to register callbacks before and after request proc... |
Python: Printing Html in PDF using Reportlab Canvas | 10,826,660 | 2 | 3 | 4,178 | 0 | python,pdf-generation,reportlab | If this is what you are tying to do you should look at using Platypus with ReportLab, a built in set of classes in ReportLab for building documents out of objects representing page elements. Or, if you want really simple, xhtml2pdf would probably be better. | 0 | 0 | 1 | 0 | 2012-05-30T07:21:00.000 | 1 | 1.2 | true | 10,811,720 | 0 | 0 | 1 | 1 | For one of my python project I am using reportlab's canvas feature to generate pdf document.
Can anyone please help me to print small subset of html (p, strong, ul, ol, li, img, alignments) on reportlab canvas?
Thanks in advance... |
Have user sign up with Google and get redirected back to the site afterwards? | 10,818,524 | 1 | 0 | 688 | 0 | python,google-app-engine | When your user goes to the login url, there is a red SIGN UP button on the top. They can go sign up there.
It took me a second to find too, unfortunately you can't change the login page. | 0 | 1 | 0 | 0 | 2012-05-30T11:22:00.000 | 2 | 0.099668 | false | 10,815,286 | 0 | 0 | 1 | 1 | I am using GAE with python and I can ask users to sign in with Google using:
loginURL = (users.create_login_url(self.request.path))
This gives me a link that lets users sign in and get redirected to my site.
However some users do not have a Google ID,
Is there any way to let them sign up for one and be redirected to my... |
Setting up a Python environment in a Rails project | 10,817,852 | 1 | 0 | 303 | 0 | python,ruby-on-rails,ruby,deployment,scrapy | Are all your (DTAP) environments using the same operating system and processor architecture?
If not, I wouldn't recommend shipping the Python interpreter with your project. Why don't you compile a more recent version of Python on your environments and install it in some non-standard path, like /opt/python27/ (or simili... | 0 | 0 | 0 | 0 | 2012-05-30T13:09:00.000 | 1 | 1.2 | true | 10,816,962 | 1 | 0 | 1 | 1 | I have a Ruby on Rails project, using Python + Scrapy to scrape the web, and I would like to distribute and deploy the Rails project with all Python executables and libraries installed automatically.
The deployment environment ships by default a Python version lower than 2.6, and I would like users not to depend on OS... |
Database migrations on django production | 10,872,504 | 1 | 22 | 11,397 | 1 | python,mysql,django,migration,django-south | South isnt used everywhere. Like in my orgainzation we have 3 levels of code testing. One is local dev environment, one is staging dev enviroment, and third is that of a production .
Local Dev is on the developers hands where he can play according to his needs. Then comes staging dev which is kept identical to product... | 0 | 0 | 0 | 0 | 2012-05-31T01:12:00.000 | 6 | 0.033321 | false | 10,826,266 | 0 | 0 | 1 | 2 | From someone who has a django application in a non-trivial production environment, how do you handle database migrations? I know there is south, but it seems like that would miss quite a lot if anything substantial is involved.
The other two options (that I can think of or have used) is doing the changes on a test dat... |
Database migrations on django production | 70,559,647 | 0 | 22 | 11,397 | 1 | python,mysql,django,migration,django-south | If its not trivial, you should have pre-prod database/ app that mimic the production one. To avoid downtime on production. | 0 | 0 | 0 | 0 | 2012-05-31T01:12:00.000 | 6 | 0 | false | 10,826,266 | 0 | 0 | 1 | 2 | From someone who has a django application in a non-trivial production environment, how do you handle database migrations? I know there is south, but it seems like that would miss quite a lot if anything substantial is involved.
The other two options (that I can think of or have used) is doing the changes on a test dat... |
Intercepting all logging messages | 10,827,794 | 3 | 1 | 1,549 | 0 | python,logging | logging uses a hierarchy of loggers. Add a handler to the root logger and it will receive logged messages from child loggers, too.
To access the root logger use logging.getLogger(). | 0 | 0 | 0 | 1 | 2012-05-31T05:09:00.000 | 2 | 1.2 | true | 10,827,751 | 0 | 0 | 1 | 1 | I'm working with an application where just about every module and every class emits logging messages.
I need a way to capture every single one of those messages without explicitly attaching a handler via .addHandler() to each logging instance (which is what I'm doing right now).
Is there any way to attach a handler to ... |
migrating data from tomcat .dbx files | 10,833,110 | 0 | 0 | 126 | 0 | python,tomcat,jetty,data-migration,web-inf | The ".dbx" suffix has been used by various softwares over the years so it could be almost anything. The only way to know what you really have here is to browse the source code of the legacy java app (or the relevant doc or ask the author etc).
wrt/ scraping, it's probably going to be a lot of a pain for not much result... | 0 | 0 | 0 | 0 | 2012-05-31T09:25:00.000 | 1 | 0 | false | 10,830,829 | 0 | 0 | 1 | 1 | I want to migrate data from an old Tomcat/Jetty website to a new one which runs on Python & Django. Ideally I would like to populate the new website by directly reading the data from the old database and storing them in the new one.
Problem is that the database I was given comes in the form of a bunch of WEB-INF/data/*... |
Django post_save preventing recursion without overriding model save() | 19,936,271 | 39 | 38 | 22,986 | 0 | python,django,django-signals | Don't disconnect signals. If any new model of the same type is generated while the signal is disconnected the handler function won't be fired. Signals are global across Django and several requests can be running concurrently, making some fail while others run their post_save handler. | 0 | 0 | 0 | 0 | 2012-05-31T19:27:00.000 | 10 | 1 | false | 10,840,030 | 0 | 0 | 1 | 3 | There are many Stack Overflow posts about recursion using the post_save signal, to which the comments and answers are overwhelmingly: "why not override save()" or a save that is only fired upon created == True.
Well I believe there's a good case for not using save() - for example, I am adding a temporary application th... |
Django post_save preventing recursion without overriding model save() | 22,560,210 | 4 | 38 | 22,986 | 0 | python,django,django-signals | You could also check the raw argument in post_save and then call save_baseinstead of save. | 0 | 0 | 0 | 0 | 2012-05-31T19:27:00.000 | 10 | 0.07983 | false | 10,840,030 | 0 | 0 | 1 | 3 | There are many Stack Overflow posts about recursion using the post_save signal, to which the comments and answers are overwhelmingly: "why not override save()" or a save that is only fired upon created == True.
Well I believe there's a good case for not using save() - for example, I am adding a temporary application th... |
Django post_save preventing recursion without overriding model save() | 10,840,333 | 91 | 38 | 22,986 | 0 | python,django,django-signals | you can use update instead of save in the signal handler
queryset.filter(pk=instance.pk).update(....) | 0 | 0 | 0 | 0 | 2012-05-31T19:27:00.000 | 10 | 1 | false | 10,840,030 | 0 | 0 | 1 | 3 | There are many Stack Overflow posts about recursion using the post_save signal, to which the comments and answers are overwhelmingly: "why not override save()" or a save that is only fired upon created == True.
Well I believe there's a good case for not using save() - for example, I am adding a temporary application th... |
Page returned by POST handler ignored - get blank response (web.py) | 10,842,122 | 1 | 1 | 257 | 0 | python,web.py,uwsgi | To answer my own question, you need to call web.input() otherwise the returned data will be ignore (who knows why? is it a bug?) | 0 | 0 | 1 | 0 | 2012-05-31T21:57:00.000 | 1 | 0.197375 | false | 10,841,854 | 0 | 0 | 1 | 1 | This is using web.py with uwsgi.
When I return page data from a POST handler, the browser receives a blank page instead. GET handlers are working fine for me. The handler is being called correctly, and redirects (web.seeother) will work. |
Change Plone workflow | 12,753,017 | 2 | 0 | 164 | 0 | python,plone | You should try this:
Go to portal_workflow -> contents
Copy & Paste simple_publication_workflow
Rename copy_of_simple_publication_workflow to something else (eg. my_files_workflow)
Go to my_files_workflow -> States -> published -> Permissions
Uncheck the unwanted Permissions
Now you can assign this new workflow to yo... | 0 | 0 | 0 | 0 | 2012-06-01T08:44:00.000 | 1 | 1.2 | true | 10,847,097 | 0 | 0 | 1 | 1 | By default Files haven't workflow
So i put them the simple publication workflow (private -> submit -> publish)
I want the authenticated users could not modify the file when it is published
(on Plone 4.0.7) |
Set Time Constraint for generated URL of uploaded files | 10,850,488 | 1 | 0 | 73 | 0 | python,django,django-forms | You can have a datetimefield as an additional column and expire it as and when required. | 0 | 0 | 0 | 0 | 2012-06-01T11:38:00.000 | 2 | 1.2 | true | 10,849,550 | 0 | 0 | 1 | 2 | I am trying to build an application (using Django) which uploads files and generates corresponding URL. Is there some way we can set time constraint for the url, i.e. the uploaded file in url should exist only for little time after the specified time that url should give an error.
I would be using the default django se... |
Set Time Constraint for generated URL of uploaded files | 10,849,796 | 1 | 0 | 73 | 0 | python,django,django-forms | If your uploaded files are being served by the Django app itself, then it's quite easy (and can be solved in different ways depending on weither the "time constraint" is global to all files/urls or not).
Else - that is if the files are served by Apache or anything similar - you'll have to resort to some async mechanism... | 0 | 0 | 0 | 0 | 2012-06-01T11:38:00.000 | 2 | 0.099668 | false | 10,849,550 | 0 | 0 | 1 | 2 | I am trying to build an application (using Django) which uploads files and generates corresponding URL. Is there some way we can set time constraint for the url, i.e. the uploaded file in url should exist only for little time after the specified time that url should give an error.
I would be using the default django se... |
google.com web pages with ".py" extension? | 10,852,170 | 2 | 1 | 1,523 | 0 | python,webserver | Yes, this just accesses a resource called answer.py on the server. This naming convention is entirely up to the server - it could run a python script (most likely what is going on), or it could even be in a completely different language. In any case, all that that browser cares about is the information that is returned... | 0 | 0 | 0 | 0 | 2012-06-01T14:27:00.000 | 2 | 0.197375 | false | 10,852,130 | 0 | 0 | 1 | 2 | Take, for instance, support.google.com/mail/bin/answer.py?hl=en&answer=13287. What is that answer.py? How does this work? I'm 99.99% sure that browsers don't have the ability to interpret python code (yet) like javascript / PHP. So what is this? Is it some Python webframework? |
google.com web pages with ".py" extension? | 10,852,194 | 2 | 1 | 1,523 | 0 | python,webserver | Most likely you request a file that's ending in .py that spits out the usual HTML et. al. The file is executed on the server side, not in your browser.
But again, that's a URL and it could point to any resource. Could be anything. Like a lot of websites use pretty URLs to point you to something , except in this case it... | 0 | 0 | 0 | 0 | 2012-06-01T14:27:00.000 | 2 | 1.2 | true | 10,852,130 | 0 | 0 | 1 | 2 | Take, for instance, support.google.com/mail/bin/answer.py?hl=en&answer=13287. What is that answer.py? How does this work? I'm 99.99% sure that browsers don't have the ability to interpret python code (yet) like javascript / PHP. So what is this? Is it some Python webframework? |
UDP communication between JavaScript and Python | 10,858,211 | 4 | 0 | 302 | 0 | javascript,python,udp,multiplayer | I recommend doing the dumbest simplest thing to get your project to work, meaning probably http and Json. Then deal with any performance problems. Otherwise you'll spend much of your project on a hard optimization problem that might not really matter. | 0 | 0 | 1 | 0 | 2012-06-01T22:38:00.000 | 2 | 0.379949 | false | 10,858,172 | 1 | 0 | 1 | 2 | I am planning to make a multiplayer game with a JavaScript based Client UI and Python on the server side. The game will be dynamic, so communication speed is very important - consequently I have decided to use UDP. Does anyone have any tips on implementations I could utilize. What tools would you recommend for this pro... |
UDP communication between JavaScript and Python | 10,858,488 | 1 | 0 | 302 | 0 | javascript,python,udp,multiplayer | I've been using SockJS + Tornado for this sort of thing. Easy to get started with, and well supported in modern browsers. | 0 | 0 | 1 | 0 | 2012-06-01T22:38:00.000 | 2 | 0.099668 | false | 10,858,172 | 1 | 0 | 1 | 2 | I am planning to make a multiplayer game with a JavaScript based Client UI and Python on the server side. The game will be dynamic, so communication speed is very important - consequently I have decided to use UDP. Does anyone have any tips on implementations I could utilize. What tools would you recommend for this pro... |
Django Handle big files ( imageblob ) | 10,971,247 | 0 | 0 | 140 | 0 | python,django,blob,sorl-thumbnail | It seems like the issue was the Jquery plugin that i was using to upload multiple files. The plugin was the one who split the file into chunks which were then sent individually as POST requests, and django didn't know that blob1, blob2, blob3, blob4 where the same file in chunks. | 0 | 0 | 0 | 0 | 2012-06-02T04:10:00.000 | 1 | 1.2 | true | 10,859,714 | 0 | 0 | 1 | 1 | I am writing a small gallery app and after extensive testing i submitted a 3mb image.
Basically the gallery app relies on another app that creates an UploadedFile instance for every image, however i see that for this specific image it has created 4 instances ( rows in db ) that belong to the same 3mb image, each image ... |
Can Django run on Gunicorn alone (no Apache or nginx)? | 10,862,770 | 7 | 15 | 17,822 | 0 | python,django,nginx,amazon-ec2,gunicorn | If you are already using amazon web services, you can use s3 buckets to host your static content and deploy your app to ec2 using gunicorn (or whatever you want). That way, you don't have to worry about setting up your own static file server at all. | 0 | 0 | 0 | 0 | 2012-06-02T12:16:00.000 | 5 | 1 | false | 10,862,259 | 0 | 0 | 1 | 1 | I have tried just about every django + nginx tutorial on the web and I cannot get an image file to display on the screen. It's always the old story - 404 PAGE NOT FOUND. The web page loads fine but django.png in my /static/ folder does not. Not sure if it's a problem in settings.py or with nginx.
I am so frustrated wit... |
how to mechnize the urls inside a returned page by mechanize in python? | 10,869,296 | 0 | 0 | 104 | 0 | python,mechanize | You can rewrite the urls, either by parsing the HTML with lxml, beautiful soup, etc - and then rewriting them and re-dumping the DOM to string before sending it to the user. Or by searching for URLs with regular expressions, and return a rewritten HTML.
keep in mind that doing it properly, with links generated by javas... | 0 | 0 | 1 | 0 | 2012-06-03T09:29:00.000 | 1 | 0 | false | 10,869,211 | 0 | 0 | 1 | 1 | I am working on a project to make web-based proxy using python and
mechanize . I have a problem :
The page that mechanize returns, has URLS that are are not
Mechanized and if user clicks on it, they will go thourgh the link by
their own computer's ip (not the server that my code is installed on it) . is there any way ... |
Best way for single worker implementation in Flask | 10,872,890 | 0 | 1 | 2,057 | 0 | python,multithreading,multiprocessing,flask,celery | You could hypervize the process using multiprocess or subprocess, then just hand the handle round the session. | 0 | 0 | 0 | 0 | 2012-06-03T17:09:00.000 | 2 | 0 | false | 10,872,287 | 0 | 0 | 1 | 1 | I have some spider that download pages and store data in database. I have created flask application with admin panel (by Flask-Admin extension) that show database.
Now I want append function to my flask app for control spider state: switch on/off.
I thing it posible by threads or multiprocessing. Celery is not good dec... |
performing backend operations / tasks after specific intervals of time on Google App Engine (python) | 10,873,056 | 1 | 0 | 203 | 0 | python,google-app-engine,scheduled-tasks,backend,task-queue | Take a look at the Cron task or set a task queue with a specific ETA | 0 | 1 | 0 | 0 | 2012-06-03T19:00:00.000 | 2 | 1.2 | true | 10,873,049 | 0 | 0 | 1 | 1 | I want my GAE app to do some back-end processing and uploading/updating results to data-store after specific intervals of time (say every 6 hours). So whenever a user uses my app (and basically requests those values from the data-store) they would get the recent/updated values from the data-store.
How would this be imp... |
GAE DataStore python - fetch() vs run() | 10,874,870 | 2 | 1 | 576 | 0 | python,google-app-engine,google-cloud-datastore | You can run (with run) multiple datastore queries in parallel to improve latency. This has nothing to do with your resulting HTML. The resulting HTML should be the same. | 0 | 1 | 0 | 0 | 2012-06-03T22:09:00.000 | 2 | 1.2 | true | 10,874,312 | 0 | 0 | 1 | 2 | I saw there are two methods for getting data from the datastore:
fetch() and run()
Regarding fetch the documentation says:
Note: You should rarely need to use this method; it is almost always better to use run() instead.
I don't understand the difference between the two.
I am new to GAE and Python, please help me under... |
GAE DataStore python - fetch() vs run() | 10,883,221 | 3 | 1 | 576 | 0 | python,google-app-engine,google-cloud-datastore | Beginner's advice: until you appreciate the difference, stick with fetch(). There are many other things you probably ought to get comfortable with first before this subtle distinction will bother you. | 0 | 1 | 0 | 0 | 2012-06-03T22:09:00.000 | 2 | 0.291313 | false | 10,874,312 | 0 | 0 | 1 | 2 | I saw there are two methods for getting data from the datastore:
fetch() and run()
Regarding fetch the documentation says:
Note: You should rarely need to use this method; it is almost always better to use run() instead.
I don't understand the difference between the two.
I am new to GAE and Python, please help me under... |
How do you find the CPU consumption for a piece of Python? | 10,906,462 | 2 | 6 | 1,360 | 0 | python,django,performance,profiling,stress-testing | You could try configuring your test to ramp up slowly, slow enough so that you can see the CPU gradually increase and then run the profiler before you hit high CPU. There's no point trying to profile code when the CPU is maxed out because at this point everything will be slow. In fact, you really only need a relatively... | 0 | 0 | 0 | 1 | 2012-06-04T06:16:00.000 | 2 | 1.2 | true | 10,877,048 | 0 | 0 | 1 | 1 | Background
I have a Django application, it works and responds pretty well on low load, but on high load like 100 users/sec, it consumes 100% CPU and then due to lack of CPU slows down.
Problem:
Profiling the application gives me time taken by functions.
This time increases on high load.
Time consumed may be due to com... |
Loading external python modules for Pig UDFs on Amazon EMR | 10,922,348 | 0 | 3 | 1,681 | 0 | python,amazon,apache-pig,emr | could you manually hack sys.path inside of your jython script? | 0 | 1 | 0 | 0 | 2012-06-04T17:15:00.000 | 1 | 0 | false | 10,885,312 | 0 | 0 | 1 | 1 | I've created a python UDF to convert datetimes into different timezones. The script uses pytz which doesn't ship with python (or jython). I've tried a couple things:
Bootstrapping PIG to install it's own jython and including pytz in
that jython installation. I can't get PIG to use the newly installed
jython, it keeps ... |
Automating HTTP navigation and HTML printing using Python | 10,899,256 | 0 | 2 | 773 | 0 | javascript,python,html,automation | I think it will be easier for you get program like autoit. | 0 | 0 | 1 | 0 | 2012-06-05T14:26:00.000 | 3 | 0 | false | 10,899,192 | 0 | 0 | 1 | 1 | Every Monday at Work, I have the task of printing out Account analysis (portfolio analysis) and Account Positions for over 50 accounts. So i go to the page, click "account analysis", enter the account name, click "format this page for printing", Print the output (excluding company disclosures), then I go back to the ac... |
Compiling and running code as dmg or exe | 10,906,453 | 0 | 0 | 1,925 | 0 | python,exe,dmg | If you mean specifically with Python, as I gather from tagging that in your question, it won't simply run the same way as Java will, because there's no equivalent Virtual Machine.
If the user has a Python interpreter on their system, they they can simply run the .py file.
If they do not, you can bundle the interpreter ... | 0 | 1 | 0 | 1 | 2012-06-05T23:01:00.000 | 1 | 0 | false | 10,906,198 | 0 | 0 | 1 | 1 | Newbie question I am finding it hard to get my head around.
If I wanted to use one of the many tool out their like rsync lsync or s3cmd how can you build these into a program for none computer savvy people to use.
Ie I am comfortable opening terminal and running s3cmd which Is developed in python how would I go about d... |
In Pyramid, is it safe to have a python global variable that stores the db connection? | 10,907,158 | 2 | 2 | 877 | 1 | python,pyramid | Pyramid has nothing to do with it. The global needs to handle whatever mechanism the WSGI server is using to serve your application.
For instance, most servers use a separate thread per request, so your global variable needs to be threadsafe. gunicorn and gevent are served using greenlets, which is a different mechanic... | 0 | 0 | 0 | 0 | 2012-06-05T23:41:00.000 | 1 | 0.379949 | false | 10,906,477 | 0 | 0 | 1 | 1 | It looks like this is what e.g. MongoEngine does. The goal is to have model files be able to access the db without having to explicitly pass around the context. |
Google Finance recognizes my Python script as a bot and blocks it | 10,908,773 | 1 | 1 | 1,173 | 0 | python,bots,google-finance | well, you finally reached a quite challenging realm. decode the captcha.
there do exist OCR approaches to decode simple captcha into code. not seems to work for google captcha.
I heard there are some companies provide manual captcha decoding services, you can try to use some. ^_^ LOL
ok, to be serious, if google don'... | 0 | 0 | 1 | 0 | 2012-06-06T05:42:00.000 | 1 | 0.197375 | false | 10,908,715 | 0 | 0 | 1 | 1 | I wrote a script that retrieves stock data on google finance and prints it out, nice and simple. It always worked, but since this morning I only get a page that tells me that I'm probably an automated script instead of the stock data. Of course, being a script, I can't pass the captcha. What can I do? |
How to migrate large data from any file system to a plone site plone 4.1? | 10,913,922 | 0 | 1 | 280 | 0 | python,plone | If you're running out of other ideas, you can copy them in using WebDAV access. (Be aware, though, to pack the database afterwards: while Plone4 has blob support, I think files uploaded via WebDAV leave a stale copy in the database.) | 0 | 0 | 0 | 0 | 2012-06-06T07:20:00.000 | 3 | 0 | false | 10,909,812 | 0 | 0 | 1 | 1 | I want to implement DMS for the existing files on my File system. How do I import such existing files / images into my Plone DMS. I don't wish to use Products.Reflecto as I am unable to add any version control/ edit the uploaded files, images in it. |
Migrating GAE app from python 2.5 to 2.7 | 10,910,709 | 2 | 3 | 335 | 0 | google-app-engine,python-2.7 | Put a main file in the top-level directory and import all your handlers there, then reference them via that file | 0 | 1 | 0 | 0 | 2012-06-06T08:21:00.000 | 2 | 0.197375 | false | 10,910,591 | 0 | 0 | 1 | 1 | I am trying to migrate my app and everything worked fine until I changed in app.yaml
from threadsafe: false to threadsafe: true.
The error I was receiving was:
threadsafe cannot be enabled with CGI handler: a/b/xyz.app
After some googling I found:
Only scripts in the top-level directory work as handlers, so if you hav... |
Embed Flask page in another without code duplication? | 10,926,171 | 1 | 5 | 909 | 0 | python,twitter-bootstrap,flask | To re-use a chunk of HTML, you can use Jinja's {% include %} tag. If that's too limiting, Jinja macros are also well suited. You can define your macros in a separate file and import them with {% import "path/to/macros.html" as my_macros %}.
Flask-Assets can help with the organisation of your assets.
As for using Bluepr... | 0 | 0 | 0 | 0 | 2012-06-06T09:52:00.000 | 1 | 0.197375 | false | 10,911,878 | 0 | 0 | 1 | 1 | I have a page (located at /games/compare/) and it's a mini image comparison game. Users are shown two images and asked to pick between them in response to a question. This page can get images from the database, render a template with javascript and css inside and communicate back to the database using AJAX.
Now what if... |
Internationalizing images in django | 10,912,731 | 4 | 3 | 1,446 | 0 | python,django,image,internationalization | You could pass a language parameter to your page template and use it as part of your media file URL.
This would require you to host all media files for, e.g., English in a folder SITE_MEDIA/english, while other, e.g., Japanese images would be available from SITE_MEDIA/japanese.
Inside your page templates, you could the... | 0 | 0 | 0 | 0 | 2012-06-06T10:48:00.000 | 5 | 0.158649 | false | 10,912,706 | 0 | 0 | 1 | 1 | How would I implement different images from static folder based on language?
For example, when visiting the main site the layout will load in english but when changed to japanese the logo and images attached to the layout will change based on the requested language. please help..... |
Twisted Server Sent Events accessing using Internet Explorer | 10,949,657 | 2 | 2 | 431 | 0 | python,internet-explorer,real-time,twisted,server-sent-events | Answering my own question is a little weird. But I just found the answer. I had to go with long polling. looks like, I have to write a framework which falls-back to long polling when server sent events are not supported. Answering just in case anyone comes for reference in future. | 0 | 1 | 0 | 0 | 2012-06-06T13:01:00.000 | 1 | 1.2 | true | 10,914,740 | 0 | 0 | 1 | 1 | I am working on a project that requires real time update. So, long ago, I decided to go with using Twisted SSE Handler (cyclone.sse). The project is at an end. And all the pub/sub stuff is good on all the browsers except Internet Explorer. IE doesn't support SSE. How do I get pub-sub working on IE without change of cod... |
Monkey patch form in INSTALLED_APPS | 11,048,847 | 0 | 1 | 259 | 0 | python,django,django-forms,monkeypatching | The solution here was to copy the package to my application folder and patch it locally. | 0 | 0 | 0 | 0 | 2012-06-06T16:10:00.000 | 2 | 1.2 | true | 10,918,002 | 0 | 0 | 1 | 2 | I have an app included into INSTALLED_APPS that needs to be monkey-patched.
The problem is that I don't explicitly import modules from this app (django-allauth).
Is there any way to get some access at the point when Django imports an application
and monkey patch one of it's internal forms?
Which in my case would be so... |
Monkey patch form in INSTALLED_APPS | 10,918,221 | -1 | 1 | 259 | 0 | python,django,django-forms,monkeypatching | import ipdb; ipdb.set_trace() in the __init__ of the module. And write the char "w" to see the trace | 0 | 0 | 0 | 0 | 2012-06-06T16:10:00.000 | 2 | -0.099668 | false | 10,918,002 | 0 | 0 | 1 | 2 | I have an app included into INSTALLED_APPS that needs to be monkey-patched.
The problem is that I don't explicitly import modules from this app (django-allauth).
Is there any way to get some access at the point when Django imports an application
and monkey patch one of it's internal forms?
Which in my case would be so... |
Cron-like scheduler, something between cron and celery | 10,918,986 | 1 | 3 | 1,859 | 0 | python,django,cron,celery | In my personal opinion, i would learn how to use cron. This won't take more than 5 to 10 minutes, and it's an essential tool when working on a Linux server.
What you could do is set up a cronjob that requests one page of your django instance every minute, and have the django script figure out what time it is and what n... | 0 | 1 | 0 | 0 | 2012-06-06T17:11:00.000 | 2 | 1.2 | true | 10,918,905 | 0 | 0 | 1 | 1 | I'd like to run periodic tasks on my django project, but I don't want all the complexity of celery/django-celery (with celerybeat) bundled in my project.
I'd like, also, to store the config with the times and which command to run within my SCM.
My production machine is running Ubuntu 10.04.
While I could learn and use ... |
As part of development, I am committing to github and pulling down and executing elsewhere. It feels wrong | 10,919,450 | 3 | 1 | 97 | 0 | python,github,jenkins | The solution is quite simple: make cleaner commits (fix typos before committing, only commit changes that belong together, not for too small edits). It's a bit odd that you don't take the time to fix typos (by running/testing locally) but wish to reduce the number of commits by some other means. | 0 | 1 | 0 | 0 | 2012-06-06T17:40:00.000 | 2 | 0.291313 | false | 10,919,301 | 0 | 0 | 1 | 2 | I have a standard-ish setup. Call it three servers - www, app and db, all fed from fabric scripts, and the whole on github.
I have a local laptop with the repo clone. I change a file locally, and push it to github then deploy using jenkins - which pulls from github and does its business. The problem here is I can pu... |
As part of development, I am committing to github and pulling down and executing elsewhere. It feels wrong | 10,920,164 | 0 | 1 | 97 | 0 | python,github,jenkins | The solution is to not use github / jenkins to deploy to the servers.
The servers should be seen as part of the 'local' deployment (local being pre-commit)
So use the fab files directly, from my laptop.
That was harder because of pre processing occuring on jenkins but that is replicable.
So, I shall take Jeff Atwoods a... | 0 | 1 | 0 | 0 | 2012-06-06T17:40:00.000 | 2 | 1.2 | true | 10,919,301 | 0 | 0 | 1 | 2 | I have a standard-ish setup. Call it three servers - www, app and db, all fed from fabric scripts, and the whole on github.
I have a local laptop with the repo clone. I change a file locally, and push it to github then deploy using jenkins - which pulls from github and does its business. The problem here is I can pu... |
What to do with pyc files when Django or python is used with Mercurial? | 10,920,888 | 5 | 7 | 8,119 | 1 | python,django,mercurial,pyc | Usually you are safe, because *.pyc are regenerated if the corresponding *.py changes its content.
It is problematic if you delete a *.py file and you are still importing from it in another file. In this case you are importing from the *.pyc file if it is existing. But this will be a bug in your code and is not really ... | 0 | 0 | 0 | 0 | 2012-06-06T18:58:00.000 | 4 | 0.244919 | false | 10,920,423 | 0 | 0 | 1 | 2 | Just started to use Mercurial. Wow, nice application. I moved my database file out of the code directory, but I was wondering about the .pyc files. I didn't include them on the initial commit. The documentation about the .hgignore file includes an example to exclude *.pyc, so I think I'm on the right track.
I am wonde... |
What to do with pyc files when Django or python is used with Mercurial? | 10,920,511 | 0 | 7 | 8,119 | 1 | python,django,mercurial,pyc | Sure if you have a .pyc file from an older version of the same module python will use that. Many times I have wondered why my program wasn't reflecting the changes I made, and realized it was because I had old pyc files.
If this means that .pyc are not reflecting your current version then yes you will have to delete a... | 0 | 0 | 0 | 0 | 2012-06-06T18:58:00.000 | 4 | 0 | false | 10,920,423 | 0 | 0 | 1 | 2 | Just started to use Mercurial. Wow, nice application. I moved my database file out of the code directory, but I was wondering about the .pyc files. I didn't include them on the initial commit. The documentation about the .hgignore file includes an example to exclude *.pyc, so I think I'm on the right track.
I am wonde... |
Django: how to properly handle a database connection error | 10,935,789 | 1 | 1 | 2,536 | 1 | python,mysql,django | You could use a middleware with a process_view method and a try / except wrapping your call.
Or you could decorate your views and wrap the call there.
Or you could use class based views with a base class that has a method decorator on its dispatch method, or an overriden.dispatch.
Really, you have plenty of solutions.... | 0 | 0 | 0 | 0 | 2012-06-07T11:00:00.000 | 2 | 0.099668 | false | 10,930,459 | 0 | 0 | 1 | 1 | I have a desktop application that send POST requests to a server where a django app store the results. DB server and web server are not on the same machine and it happens that sometimes the connectivity is lost for a very short time but results in a connection error on some requests:
OperationalError: (2003, "Can't co... |
MongoDB: Embedded users into comments | 10,932,004 | 1 | 3 | 919 | 1 | python,mongodb,mongoalchemy,nosql | What I would do with mongodb would be to embed the user id into the comments (which are part of the structure of the "post" document).
Three simple hints for better performances:
1) Make sure to ensure an index on the user_id
2) Use comment pagination method to avoid querying 200 times the database
3) Caching is your f... | 0 | 0 | 0 | 0 | 2012-06-07T12:34:00.000 | 4 | 0.049958 | false | 10,931,889 | 0 | 0 | 1 | 1 | I cant find "best" solution for very simple problem(or not very)
Have classical set of data: posts that attached to users, comments that attached to post and to user.
Now i can't decide how to build scheme/classes
On way is to store user_id inside comments and inside.
But what happens when i have 200 comments on page?
... |
How many concurrent requests does a single Flask process receive? | 10,943,523 | 39 | 184 | 143,304 | 0 | python,flask,wsgi,gunicorn | Flask will process one request per thread at the same time. If you have 2 processes with 4 threads each, that's 8 concurrent requests.
Flask doesn't spawn or manage threads or processes. That's the responsability of the WSGI gateway (eg. gunicorn). | 0 | 0 | 0 | 0 | 2012-06-07T19:12:00.000 | 4 | 1 | false | 10,938,360 | 0 | 0 | 1 | 2 | I'm building an app with Flask, but I don't know much about WSGI and it's HTTP base, Werkzeug. When I start serving a Flask application with gunicorn and 4 worker processes, does this mean that I can handle 4 concurrent requests?
I do mean concurrent requests, and not requests per second or anything else. |
How many concurrent requests does a single Flask process receive? | 10,942,272 | 9 | 184 | 143,304 | 0 | python,flask,wsgi,gunicorn | No- you can definitely handle more than that.
Its important to remember that deep deep down, assuming you are running a single core machine, the CPU really only runs one instruction* at a time.
Namely, the CPU can only execute a very limited set of instructions, and it can't execute more than one instruction per cloc... | 0 | 0 | 0 | 0 | 2012-06-07T19:12:00.000 | 4 | 1 | false | 10,938,360 | 0 | 0 | 1 | 2 | I'm building an app with Flask, but I don't know much about WSGI and it's HTTP base, Werkzeug. When I start serving a Flask application with gunicorn and 4 worker processes, does this mean that I can handle 4 concurrent requests?
I do mean concurrent requests, and not requests per second or anything else. |
Scraping a website in python with firebug? | 10,942,524 | 0 | 0 | 1,907 | 0 | python,firebug,web-scraping | If the answer's not in the source code (possibly obfuscated, encoded, etc), then it was probably retrieved after the page loaded with an XmlHTTPRequest. You can use the 'network' panel in Firebug to see what other pieces of data the page loaded, and what requests it made to load them.
(You may have to enable the netwo... | 0 | 0 | 1 | 0 | 2012-06-08T02:44:00.000 | 2 | 0 | false | 10,942,469 | 0 | 0 | 1 | 1 | I am trying to scrape a website, but the thing that I want to get is not in the source code. But it does appear when i use firebug. Is there a way to scrape from the firebug code as opposed to the source code? |
Python: moving from dev server to production server | 10,950,787 | 1 | 1 | 307 | 0 | python | In general your application is using wsgi compliant framework and you shouldn't be afraid of multi-threaded / single-threaded server side. It's meant to work transparent and has to react same way despite of what kind of server is it, as long as it is wsgi compliant.
Every code block before bottle.run() will be run only... | 0 | 0 | 0 | 0 | 2012-06-08T12:12:00.000 | 1 | 1.2 | true | 10,948,636 | 0 | 0 | 1 | 1 | I am developing an application with the bottlepy framework. I am using the standard library WSGIRefServer() to run a development server. It is a single threaded server.
Now when going into production, I will want to move to a multi-threaded production server, and there are many choices. Let's say I choose CherryPy.
Now... |
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