Q_Id int64 337 49.3M | CreationDate stringlengths 23 23 | Users Score int64 -42 1.15k | Other int64 0 1 | Python Basics and Environment int64 0 1 | System Administration and DevOps int64 0 1 | Tags stringlengths 6 105 | A_Id int64 518 72.5M | AnswerCount int64 1 64 | is_accepted bool 2
classes | Web Development int64 0 1 | GUI and Desktop Applications int64 0 1 | Answer stringlengths 6 11.6k | Available Count int64 1 31 | Q_Score int64 0 6.79k | Data Science and Machine Learning int64 0 1 | Question stringlengths 15 29k | Title stringlengths 11 150 | Score float64 -1 1.2 | Database and SQL int64 0 1 | Networking and APIs int64 0 1 | ViewCount int64 8 6.81M |
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10,671,004 | 2012-05-20T05:24:00.000 | 4 | 0 | 0 | 0 | python,http,wsgi | 10,671,041 | 1 | false | 1 | 0 | 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. | 1 | 3 | 0 | 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... | How to gracefully shutdown any WSGI server? | 0.664037 | 0 | 0 | 1,133 |
10,671,709 | 2012-05-20T07:49:00.000 | 2 | 0 | 1 | 1 | python,shell,command-line | 10,671,869 | 1 | true | 0 | 0 | Exit ipython cleanly with Ctrl+D and ipython should do this by default. | 1 | 3 | 0 | When I open a python or ipython from command-line, I don't have commands history from previous use, using up key
Is there a way to configure it, to remember commands, like a .bash_history? | Keep command history between (i)python sessions | 1.2 | 0 | 0 | 310 |
10,672,939 | 2012-05-20T11:16:00.000 | 6 | 0 | 0 | 0 | python,database,dynamic,sqlalchemy,redis | 10,792,940 | 4 | false | 1 | 0 | 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 ... | 2 | 20 | 0 | 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? | 1 | 1 | 0 | 4,158 |
10,672,939 | 2012-05-20T11:16:00.000 | 3 | 0 | 0 | 0 | python,database,dynamic,sqlalchemy,redis | 10,707,420 | 4 | true | 1 | 0 | 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... | 2 | 20 | 0 | 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? | 1.2 | 1 | 0 | 4,158 |
10,673,245 | 2012-05-20T12:06:00.000 | 0 | 1 | 0 | 0 | python | 10,674,012 | 1 | true | 1 | 0 | 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... | 1 | 1 | 0 | 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 | Sync message to twitter in background in a web application | 1.2 | 0 | 0 | 56 |
10,675,029 | 2012-05-20T16:08:00.000 | 7 | 0 | 0 | 0 | python,ip-address | 10,675,083 | 1 | false | 0 | 0 | In general, you can't. If someone has a different computer make a request on behalf of their computer, then you only get network information about the machine you receive the connection from.
An HTTP proxy might add a X-Forwarded-For header. | 1 | 0 | 0 | How can I find IP address of clients in python? | How can I find real client ip address? | 1 | 0 | 1 | 319 |
10,676,079 | 2012-05-20T18:36:00.000 | -1 | 0 | 1 | 0 | python,abstract-syntax-tree | 10,676,101 | 1 | false | 0 | 0 | you can always store your parent node in a heap for later use. | 1 | 1 | 0 | I use AST module to parse a source code, and process it for something. But, when I need back a parent node from its child node, it's didn't exist. | why python AST module parse a source code to a tree of it's node don't have point of parent | -0.197375 | 0 | 0 | 413 |
10,680,724 | 2012-05-21T06:59:00.000 | 1 | 1 | 1 | 0 | python,py2exe | 10,716,585 | 1 | true | 0 | 0 | I solved my own problem (kinda), I was able to avoid this error and successfully 'compile' my code by consolidating all my modules in to a single file, so that no custom modules were imported. It resulted in some super messy code, but it worked! | 1 | 1 | 0 | I have a python program I wrote that I am trying to "compile" with py2exe, everything goes well and the executable is created. The first time I run the program I get this error:
Traceback (most recent call last):
File "IMGui.py", line 13, in
ImportError: No module named IMCrypt2
I found that if I manually add my cus... | zipimport.ZipImportError: can't find module from program made with py2exe | 1.2 | 0 | 0 | 2,876 |
10,681,740 | 2012-05-21T08:23:00.000 | 2 | 0 | 0 | 0 | python,c,gtk,pygobject,gtktreeview | 10,690,046 | 2 | true | 0 | 1 | At the risk of being too basic (perhaps I misunderstand the problem), to manipulate treeview selections, you use the GtkTreeSelection object returned from GtkTreeView.get_selection. You can attach to signals on this object, change the current selection,etc. | 1 | 3 | 0 | I'm using PyGObject but I think this is a question that could be adapted to all GTK, so if someone know how to do it using C or anything should work in python also.
I have two treeview, Active and Inactive, I load data from a Sqlite database and I can swap and drag & drop items from one to other.
This is just an aeste... | Gtk.Treeview deselect row via signals and code | 1.2 | 0 | 0 | 1,990 |
10,688,601 | 2012-05-21T16:01:00.000 | 2 | 0 | 1 | 0 | python,ubuntu,numpy,virtualenv | 10,688,691 | 1 | false | 0 | 0 | You have to install it inside of your virtual environment. The easiest way to do this is:
source [virtualenv]/bin/activate
pip install numpy | 1 | 0 | 1 | I have successfully install NumPy on Ubuntu; however when inside a virtualenv, NumPy is not available. I must be missing something obvious, but I do not understand why I can not import NumPy when using python from a virtualenv. Can anyone help? I am using Python 2.7.3 as my system-wide python and inside my virtualenv. ... | Installed NumPy successfully, but not accessible with virtualenv | 0.379949 | 0 | 0 | 394 |
10,689,273 | 2012-05-21T16:49:00.000 | 3 | 1 | 1 | 0 | python,cryptography,rsa,pycrypto | 10,689,441 | 3 | false | 0 | 0 | No, you can't compute e from d.
RSA is symmetric in d and e: you can equally-well interchange the roles of the public and the private keys. Of course, we choose one specially to be private and reveal the other -- but theoretically they do the same thing. Naturally, since you can't deduce the private key from the public... | 2 | 8 | 0 | I am newbie in cryptography and pycrypto.
I have modulus n and private exponent d. From what I understand after reading some docs private key consists of n and d.
I need to sign a message and I can't figure out how to do that using pycrypto. RSA.construct() method accepts a tuple. But I have to additionally provide p... | I have modulus and private exponent. How to construct RSA private key and sign a message? | 0.197375 | 0 | 0 | 10,098 |
10,689,273 | 2012-05-21T16:49:00.000 | 2 | 1 | 1 | 0 | python,cryptography,rsa,pycrypto | 10,690,482 | 3 | false | 0 | 0 | If you don't have the public exponent you may be able to guess it. Most of the time it's not a random prime but a static value. Try the values 65537 (hex 0x010001, the fourth number of Fermat), 3, 5, 7, 13 and 17 (in that order).
[EDIT] Simply sign with the private key and verify with the public key to see if the publi... | 2 | 8 | 0 | I am newbie in cryptography and pycrypto.
I have modulus n and private exponent d. From what I understand after reading some docs private key consists of n and d.
I need to sign a message and I can't figure out how to do that using pycrypto. RSA.construct() method accepts a tuple. But I have to additionally provide p... | I have modulus and private exponent. How to construct RSA private key and sign a message? | 0.132549 | 0 | 0 | 10,098 |
10,689,523 | 2012-05-21T17:10:00.000 | 9 | 0 | 1 | 0 | python,django,python-3.x,python-2.x | 10,689,607 | 1 | true | 0 | 0 | I don't think it's really possible, no. The same instance of the interpreter has to handle every module imported in a given app, so there's no obvious way to mix and match interpreters. If you need to accomplish a discrete task with a Python 3 module, you could try making a command-line script to accomplish your task... | 1 | 5 | 0 | Is there a way to import Python 3 modules into Python 2 scripts? I want to use some Python 3 modules in a Django application and haven't seen anything on the Internet. Any clues? | Import some python3 modules in Python2 | 1.2 | 0 | 0 | 4,187 |
10,689,738 | 2012-05-21T17:27:00.000 | 0 | 0 | 1 | 0 | python,pip | 10,690,031 | 2 | false | 0 | 0 | Not tried it ever, but isn't that what the pip bundle command is for? From looking at the output of pip help bundle it looks like it'll even take an input file containing the list of packages. Having never used it, not sure just what it is that it produces.
I think the idea is that you'd run pip bundle on a system th... | 1 | 1 | 0 | I'm basically trying to get a Python app going in my office for taking care of a task, but one of the requirements doesn't play well right now with pybundle and for some reason that doesn't seem to install correctly on their machine.
Are there any other easy options to get all the requirements to other people? | How would I get all the reqs of a requirements.txt file using pip to someone with blocked internet access? | 0 | 0 | 0 | 163 |
10,689,818 | 2012-05-21T17:32:00.000 | 0 | 0 | 0 | 1 | python,gnuplot | 10,690,113 | 2 | false | 0 | 0 | Non-python answer would be to use `script' command. | 1 | 0 | 0 | I am new to gnuplot. I am using Unix.
I see the commands/error and their output on the terminal but I want to save them on a file too for storage purposes.
There is a save command in gnuplot but it only saves the last plot or splot command given by the module and the final settings.
Suppose I plot a line with settings... | Save commands sent over to the gnuplot program by Gnuplot-py package | 0 | 0 | 0 | 231 |
10,690,416 | 2012-05-21T18:14:00.000 | 0 | 0 | 0 | 0 | python,macos,cocoa,tkinter,tk | 11,246,589 | 1 | false | 0 | 1 | Try some variant of this command:
self.createcommand('tkAboutDialog', self.aboutProgram)
and put your app "about" dialog code in the aboutProgram() function. | 1 | 1 | 0 | I wrote a diff and merge program in Python using the Tkinter UI framework.
Running it on OS-X there are two problems:
when starting it the window does not get displayed unless switching back and forth with other running apps. There has been a thread here recommending
top.call('wm', 'attributes', '.', '-topmost', '1')
... | use a Tkinter frame in a Mac Cocoa app | 0 | 0 | 0 | 382 |
10,693,379 | 2012-05-21T22:14:00.000 | 0 | 0 | 0 | 0 | python,django,tastypie | 24,058,617 | 4 | false | 1 | 0 | Can also use the dehydrate(self, bundle) method.
def dehydrate(self, bundle):
del bundle.data['attr-to-del]
return bundle | 1 | 11 | 0 | 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? | Can django-tastypie display a different set of fields in the list and detail views of a single resource? | 0 | 0 | 0 | 5,626 |
10,697,651 | 2012-05-22T07:32:00.000 | 1 | 0 | 0 | 1 | python,google-app-engine | 10,698,246 | 1 | false | 1 | 0 | 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. | 1 | 1 | 0 | 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 ... | queues remain unknown or just don't know how to call them | 0.197375 | 0 | 0 | 178 |
10,697,843 | 2012-05-22T07:44:00.000 | 0 | 0 | 0 | 0 | python,html,web2py | 10,697,999 | 3 | false | 1 | 0 | Yes it is possible in the incoming request is the name of the pressed button. | 1 | 3 | 0 | 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. | is it possible to have two submit button for one form? | 0 | 0 | 0 | 2,325 |
10,703,616 | 2012-05-22T14:00:00.000 | 3 | 0 | 0 | 0 | python | 10,703,762 | 1 | true | 1 | 0 | Pystache is a template library not http server! If you want make webapp try to use ready-made webframeworks like Django or Pyramid. | 1 | 1 | 0 | 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... | Get started with pystache | 1.2 | 0 | 0 | 617 |
10,705,572 | 2012-05-22T15:52:00.000 | 1 | 0 | 0 | 0 | python,sql-server,bigdata | 10,713,425 | 1 | false | 0 | 0 | I think that the answer is that there is no general recipe for doing this. In fact, I don't even think it makes sense to have a general recipe ...
What you need to do is to analyse the SQL schemas and work out an appropriate mapping to BigData schemas. Then you figure out how to migrate the data. | 1 | 0 | 0 | I have a large SQLServer database on my current hosting site...
and
I would like to import it into Google BigData.
Is there a method for this? | Porting data from SQLServer to BigData | 0.197375 | 1 | 0 | 108 |
10,706,735 | 2012-05-22T17:07:00.000 | 1 | 0 | 1 | 0 | python,strptime | 10,706,871 | 2 | false | 0 | 0 | '1/12/07 00:07 AM' has incorrect format because in the 12-hour format the hour can be in range 1-12 and not 0. | 1 | 3 | 0 | My string format currently is datetime.strptime(date_as_string, '%d/%m/%y %I:%M %p')
this unfortunately does not work with input such as 1/12/07 00:07 AM
How I can get strptime to recogize this format ?
EDIT:
ValueError: time data '1/12/07 00:07 AM' does not match format '%d/%m/%y %I:%M %p' | python strptime wrong format with 12-hour hour | 0.099668 | 0 | 0 | 1,657 |
10,707,259 | 2012-05-22T17:47:00.000 | 2 | 0 | 1 | 1 | python,bash,shell,ipython | 10,719,912 | 1 | true | 0 | 0 | You will have to live with this.
If identifiers are handled across language boundaries (in this case bash/Python) you will have problems if the languages' rules for identifiers allow different things (in this case the - is allowed in bash but not in Python). One way to solve this is name mangling. Sometimes this is d... | 1 | 1 | 0 | I recently switched my default shell to IPython, rather than bash, by creating an IPython profile with automagic, autocall and other such features turned on. To make executables visible to the IPython environment, I've included %rehashx to run automatically in my config files. The trouble with this is that commands wit... | IPython magic commands and dashes | 1.2 | 0 | 0 | 429 |
10,707,815 | 2012-05-22T18:22:00.000 | 0 | 0 | 0 | 0 | python,pygtk | 10,715,877 | 2 | false | 0 | 1 | If the specific strings are always the same, as in a programming language, then use GtkSourceView instead. | 1 | 1 | 0 | I have TextView with pages of text, but I want to be able to highlight (change the background color) of specific strings in different colors. Is this possible? If so, can anybody point me in the right direction? Thanks | Highlight certain text in a PyGTK TextView | 0 | 0 | 0 | 411 |
10,711,030 | 2012-05-22T22:24:00.000 | 0 | 0 | 1 | 0 | python,r,rpy2 | 10,711,224 | 1 | false | 0 | 0 | I suspect you need to change the PYTHONPATH environment variable to include the directory containing rpy. Python knows where to search for modules when you import something by using the PYTHONPATH environment variable, much as the shell knows where to look for a program that you type the name of by using the PATH envir... | 1 | 0 | 0 | 2ND question:
Thanks so much Ben! It works! I got at Error 13 message saying I couldn't make a temporary file in C:\Program Files so I movd the ARSER folder and put it under my user name. That took care of the Error 13 but now I get NameError: a global name 'RPyPException' is not defined. Is this because I moved the fo... | NameError: a global name 'RPyPException' is not defined | 0 | 0 | 0 | 391 |
10,711,918 | 2012-05-23T00:27:00.000 | 0 | 0 | 1 | 0 | python,reduce | 10,712,114 | 6 | false | 0 | 0 | Why in the second case, the outcome is False
Because reduce(lambda x, y: x == y, (a, b, c, d)) does not mean (a == b) and (b == c) and (c == d); it means (((a == b) == c) == d). a == b will produce either True or False, which then gets compared to c. | 2 | 10 | 0 | Suppose a = [[1,2,3],[1,2,3]]
reduce(lambda x,y: x==y, a) returns True
But if a = [[1,2,3],[1,2,3],[1,2,3]]
reduce(lambda x,y: x==y, a) returns False
Why in the second case, the outcome is False?
please help
thanks | python reduce to check if all elements are equal | 0 | 0 | 0 | 5,479 |
10,711,918 | 2012-05-23T00:27:00.000 | 4 | 0 | 1 | 0 | python,reduce | 10,711,976 | 6 | false | 0 | 0 | You are not reducing the lists. The return value of your lambda is True or False, which is then used as input parameters to further calls to the same lambda function. So you end up comparing a boolean with a list. Therefore, the reducing function should return the same type as it input parameters.
You were probably ... | 2 | 10 | 0 | Suppose a = [[1,2,3],[1,2,3]]
reduce(lambda x,y: x==y, a) returns True
But if a = [[1,2,3],[1,2,3],[1,2,3]]
reduce(lambda x,y: x==y, a) returns False
Why in the second case, the outcome is False?
please help
thanks | python reduce to check if all elements are equal | 0.132549 | 0 | 0 | 5,479 |
10,717,858 | 2012-05-23T10:15:00.000 | 0 | 0 | 0 | 0 | python,copy | 10,717,978 | 2 | false | 0 | 0 | Stat the file to find the size
Divvy up the the start:end points that each reader will handle
Open your write file in binary mode
Open your readers in binary mode
Handle the merging/collating of data when writing it out | 1 | 0 | 0 | Python seems to have functions for copying files (e.g. shutil.copy) and functions for copying directories.This also works with network paths.
Is there a way to copy only part of the file from multiple sources and merge them afterwards
Like a download manager downloads parts of a single file from multiple sources increa... | copy parts of a file from multiple sources over LAN using python | 0 | 0 | 1 | 358 |
10,724,345 | 2012-05-23T16:44:00.000 | 2 | 0 | 0 | 0 | python,copy,backup,neo4j | 10,736,999 | 1 | true | 0 | 0 | Yes,
you can copy the whole DB directory when you have cleanly shut down the DB for backup. | 1 | 1 | 0 | I need to copy an existing neo4j database in Python. I even do not need it for backup, just to play around with while keeping the original database untouched. However, there is nothing about copy/backup operations in neo4j.py documentation (I am using python embedded binding).
Can I just copy the whole folder with the... | Copy neo4j database from python | 1.2 | 1 | 0 | 310 |
10,727,140 | 2012-05-23T20:12:00.000 | 2 | 0 | 0 | 0 | python,neural-network,gpu,pybrain | 10,727,166 | 2 | false | 0 | 0 | Unless PyBrain is designed for that, you probably can't.
You might want to try running your trainer under PyPy if you aren't already -- it's significantly faster than CPython for some workloads. Perhaps this is one of those workloads. :) | 1 | 1 | 1 | I was wondering if there is a way to use my GPU to speed up the training of a network in PyBrain. | How can I speed up the training of a network using my GPU? | 0.197375 | 0 | 0 | 2,082 |
10,727,447 | 2012-05-23T20:36:00.000 | -1 | 0 | 1 | 0 | python,macports | 10,727,518 | 3 | false | 0 | 0 | One way to find Python on your Mac is to type in the command line:
which python
When I type this, I get:
/usr/bin/python
You can see other pythons there by typing
ls /usr/bin/python*
For example, I see:
/usr/bin/python
/usr/bin/python2.7
/usr/bin/python-config
/usr/bin/python2.7-config
/usr/bin/python2.5
/usr/bi... | 1 | 0 | 0 | Sorry, I'm sure this is a stupid question.
I have successfully installed python 2.6 with macports. How do I use that version of python? The version that shows when I type python in term is python 2.7.
Thanks! | macports use python install | -0.066568 | 0 | 0 | 176 |
10,728,309 | 2012-05-23T21:42:00.000 | 2 | 0 | 0 | 1 | python,eclipse | 15,859,992 | 2 | false | 0 | 0 | I had the same issue, but it turned out that my text file was in fact in the wrong place, even though it was in the same directory as my python script. I had to move it into the same package as the script, not just the same directory (I did this by simply dragging the text file onto the package name in the sidebar in E... | 2 | 0 | 0 | I keep getting this error when running this python script (that I know runs and works since I ran it in VI) within eclipse.
Traceback (most recent call last):
File "/home/kt/Documents/workspace/Molly's Scripts/src/ProcessingPARFuMSData.py", line 181, in
annotations = open(sys.argv[1], 'r')
IOError: [Errno 2] No ... | Eclipse Error IOError: [Errno 2] No such file or directory: 'Tarr32_Lane2_Next34_FinalAnnotations.txt' | 0.197375 | 0 | 0 | 2,472 |
10,728,309 | 2012-05-23T21:42:00.000 | 0 | 0 | 0 | 1 | python,eclipse | 10,746,692 | 2 | false | 0 | 0 | Seems you're launching in the wrong dir. You can configure your launch in run > run configurations. | 2 | 0 | 0 | I keep getting this error when running this python script (that I know runs and works since I ran it in VI) within eclipse.
Traceback (most recent call last):
File "/home/kt/Documents/workspace/Molly's Scripts/src/ProcessingPARFuMSData.py", line 181, in
annotations = open(sys.argv[1], 'r')
IOError: [Errno 2] No ... | Eclipse Error IOError: [Errno 2] No such file or directory: 'Tarr32_Lane2_Next34_FinalAnnotations.txt' | 0 | 0 | 0 | 2,472 |
10,728,333 | 2012-05-23T21:44:00.000 | 10 | 0 | 0 | 0 | python,pyramid | 10,730,436 | 1 | true | 1 | 0 | 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 ... | 1 | 3 | 0 | 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 | Is there feature in Pyramid to specify a route in the template like Django templates? | 1.2 | 0 | 0 | 1,122 |
10,730,795 | 2012-05-24T03:34:00.000 | 0 | 0 | 0 | 0 | python,svn | 10,730,861 | 2 | false | 0 | 0 | You could actually copy the package source code from site-packages to your project folder, and your project folder normally has a higher prority than site-packages.
Then you just need check-in library to your svn. | 1 | 0 | 0 | I'm trying to use SVN to manage my python project.
I installed many external Libs (the path is like:"C:\Python27\Lib\site-packages")on Computer A,then I upload the project to the SVN Server.
and then I use Computer B which just has python(v2.7) been installed.I checkout from the SVN server
:here comes the problem..ther... | external Libs pack to python project | 0 | 0 | 0 | 109 |
10,732,171 | 2012-05-24T06:20:00.000 | 1 | 0 | 0 | 0 | wxpython | 10,733,286 | 1 | true | 0 | 1 | try and use the "persist" library in the AGW package. This will allow you to save the state of (almost) any wxPython widget across sessions. See the PersistentControls demo in the AGW library. | 1 | 0 | 0 | I am using customtreectrl in wxpython with checkboxes. Once I submit I would like to save the state of the checkboxes in the customtreectrl. How can I save the checked state of a customtreectrl with checkboxes.Please help me.
Sushma | preserving the state of check boxex in customtreectrl | 1.2 | 0 | 0 | 101 |
10,733,418 | 2012-05-24T07:59:00.000 | 1 | 0 | 1 | 1 | python,gdb | 56,772,866 | 2 | false | 0 | 0 | In mingw installer you need to install a special package called mingw32-gdb-python.
Which is the gdb compiled with python enabled | 1 | 10 | 0 | I am using gdb 7.4 on a windows 7 machine
When I attempt to execute python script I get
"Python scripting is not supported in this version of GDB"
I thought that it was supported in 7.4?
Where can I get a version of gdb that is python enabled for windows? | python enabled gdb for windows | 0.099668 | 0 | 0 | 8,234 |
10,734,668 | 2012-05-24T09:26:00.000 | 2 | 0 | 0 | 1 | python,celery | 10,739,006 | 1 | true | 0 | 0 | Celery implies a daemon using a broker (some data hub used to queue tasks). The celeryd daemon and the broker (RabbitMQ, redis, MongoDB or else) should always run in the background.
Your tasks will be queued, this means they won't happen all at the same time. You can choose how many at the same time can be run as a ma... | 1 | 0 | 0 | My task is it to write a script using opencv which will later run as a Celery task. What consequences does this have? What do I have to pay attention to? Is it enough in the end to include two lines of code or could it be, that I have to rewrite my whole script?
I read, that Celery is a "asynchronous task queue/job que... | Script needs to be run as a Celery task. What consequences does this have? | 1.2 | 0 | 0 | 2,052 |
10,735,998 | 2012-05-24T10:50:00.000 | 7 | 0 | 0 | 0 | python,ruby-on-rails,ruby,django,interop | 10,736,225 | 2 | true | 1 | 0 | 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... | 2 | 2 | 0 | 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 | 1.2 | 0 | 0 | 333 |
10,735,998 | 2012-05-24T10:50:00.000 | 3 | 0 | 0 | 0 | python,ruby-on-rails,ruby,django,interop | 10,737,263 | 2 | false | 1 | 0 | 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... | 2 | 2 | 0 | 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 | 0.291313 | 0 | 0 | 333 |
10,738,919 | 2012-05-24T13:57:00.000 | 5 | 0 | 1 | 1 | python,virtualenv | 37,116,291 | 6 | false | 0 | 0 | You can also try to put symlink to one of your virtualenv.
eg.
1) activate your virtualenv
2) run python
3) import sys and check sys.path
4) you will find python search path there. Choose one of those (eg. site-packages)
5) go there and create symlink to your package like:
ln -s path-to-your-package name-with-which-yo... | 1 | 120 | 0 | I am trying to add a path to the PYTHONPATH environment variable, that would be only visible from a particular virtualenv environment.
I tried SET PYTHONPATH=... under a virtualenv command prompt, but that sets the variable for the whole environment.
How do I achieve that? | How do I add a path to PYTHONPATH in virtualenv | 0.16514 | 0 | 0 | 122,179 |
10,739,843 | 2012-05-24T14:47:00.000 | 54 | 0 | 0 | 0 | python,pep8 | 25,034,769 | 8 | false | 0 | 0 | You can use the # noqa at the end of the line to stop PEP8/Flake8 from running that check. This is allowed by PEP8 via:
Special cases aren't special enough to break the rules. | 1 | 100 | 0 | In a block comment, I want to reference a URL that is over 80 characters long.
What is the preferred convention for displaying this URL?
I know bit.ly is an option, but the URL itself is descriptive. Shortening it and then having a nested comment describing the shortened URL seems like a crappy solution. | How should I format a long url in a python comment and still be PEP8 compliant | 1 | 0 | 1 | 24,654 |
10,740,067 | 2012-05-24T14:59:00.000 | 2 | 0 | 0 | 1 | python,linux,ubuntu,keyboard,x11 | 10,769,704 | 3 | false | 0 | 0 | The canonical way to do this is by grabbing the input. For this no window must be actually visible. A input only window usually does the trick. However you should give the user some sort of feedback, why his input no longer works. Doing this as a focus grab has the advantage that a crash of the program won't turn the s... | 1 | 4 | 0 | I am writing an anti-RSI/typing break programme for Ubuntu Linux in python. I would like to be able to "lock the keyboard" so that all keypresses are ignored until I "unlock" it. I want to be able to force the user to take a typing break.
I would like some programmatic way to "turn off" the keyboard (near instantaneous... | How do I 'lock the keyboard' to prevent any more keypresses being sent on X11/Linux/Gnome? | 0.132549 | 0 | 0 | 5,730 |
10,741,339 | 2012-05-24T16:14:00.000 | 19 | 0 | 0 | 0 | python,django,api,security | 16,702,510 | 5 | false | 1 | 0 | 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 ... | 2 | 69 | 0 | 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? | 1 | 0 | 0 | 32,350 |
10,741,339 | 2012-05-24T16:14:00.000 | 72 | 0 | 0 | 0 | python,django,api,security | 10,741,650 | 5 | true | 1 | 0 | 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... | 2 | 69 | 0 | 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? | 1.2 | 0 | 0 | 32,350 |
10,742,188 | 2012-05-24T17:10:00.000 | 1 | 1 | 0 | 1 | python,openoffice.org,libreoffice | 10,743,591 | 2 | true | 0 | 0 | Maybe a nice way to go is to get familiarized with Python setup tools itself (http://packages.python.org/an_example_pypi_project/setuptools.html), and write a proper setup.py script which would place all needed files in the appropriate dirs.
Your macros could them even be installable with the "easy_install" Python fram... | 1 | 2 | 0 | When developing macros in python for LibreOffice / OpenOffice on Linux at least, I've read that you have to place your py scripts in a particular directory.
Is there a preferred method among Python LibreOffice/OOo developers for deploying these scripts, or is there another way to specify within LibreOffice/OOo to spe... | Preferred method of "deploying" python scripts to LibreOffice during macro development? | 1.2 | 0 | 0 | 733 |
10,742,317 | 2012-05-24T17:20:00.000 | 2 | 0 | 0 | 0 | python,pygtk,glade | 10,743,355 | 1 | true | 0 | 1 | You just have to set the fill and expand parameters of the Buttons to False (uncheck them in the Glade interface).
You would also want to put each button at the center of a 3x3 GtkTable, so it will appear centered and not aligned at the top of the cell | 1 | 0 | 0 | I have a simple pygtk/glade window with a menu and a 3x3 grid. Each row of the grid consists on: two labels and a button.
When the Window is resized, the labels holds the same font size, but the buttons get resized, and they could become HUGE if the windows gets very big.
How could I manage to keep my buttons with the ... | PyGTK/Glade keep button size standard | 1.2 | 0 | 0 | 787 |
10,742,820 | 2012-05-24T17:56:00.000 | 1 | 0 | 1 | 0 | python,multithreading,multiprocess | 10,743,293 | 2 | false | 1 | 0 | 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... | 1 | 2 | 0 | 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 ... | Python multiple processes instead of threads? | 0.099668 | 0 | 0 | 624 |
10,742,911 | 2012-05-24T18:02:00.000 | 2 | 0 | 1 | 0 | python | 10,743,328 | 1 | true | 0 | 0 | So it seems the answer is "threading". Seems promising. | 1 | 0 | 0 | I'm making a program that listens for commands both from a looping raw_input and repeatedly checking a file for updates. Is there a way to do this? Basically, there's a loop with a time.sleep(1) for checking the file, and a while loop with raw_input. Multiprocessing doesn't seem to be what I need. | loop and raw_input simultaneously? | 1.2 | 0 | 0 | 176 |
10,743,158 | 2012-05-24T18:21:00.000 | 6 | 0 | 0 | 1 | python,winapi,google-app-engine,licensing | 10,743,291 | 1 | true | 1 | 0 | Nope, App Engine's python runtime only supports pure python modules. Wrapped native code modules won't work. | 1 | 0 | 0 | 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 ... | Access Win32 dll on Google App Engine? | 1.2 | 0 | 0 | 191 |
10,743,884 | 2012-05-24T19:14:00.000 | 1 | 0 | 0 | 0 | iphone,python,html,ios,ipad | 10,743,917 | 1 | true | 1 | 0 | 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.... | 1 | 0 | 0 | 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... | My page loads fine on pc or Mac but totally disappears on iPad or iPhone with iOS 5.1.1 | 1.2 | 0 | 0 | 428 |
10,745,363 | 2012-05-24T21:13:00.000 | 2 | 1 | 0 | 1 | python,linux,ubuntu,console,terminal | 10,745,449 | 3 | false | 0 | 0 | I'd also avoid doing this with a terminal, but to answer the question directly:
right click on the terminal window
profiles
profile preferences
scolling
scollback: unlimited
It's better though to redirect to a file, then access that file. "tail -f" is very helpful. | 1 | 1 | 0 | I have this python script that outputs the Twitter Stream to my terminal console. Now here is the interesting thing:
* On snowleopard I get all the data I want.
* On Ubuntu (my pc) this data is limited and older data is deleted.
Both terminal consoles operate in Bash, so it has to be an OS thing presumably.
My question... | Ubuntu Linux: terminal limits the output when I get the full Twitter Streaming API | 0.132549 | 0 | 0 | 957 |
10,745,553 | 2012-05-24T21:29:00.000 | 0 | 0 | 1 | 0 | python,virtualenv | 10,796,908 | 2 | false | 0 | 0 | You can run in trouble when running python scripts of a virtualenv as subprocesses of another virtualenv. I've found useful to remove from the environment of the subprocess PYTHONPATH and BUILDOUT_ORIGINAL_PYTHONPATH. | 1 | 18 | 0 | is it possible to nest 2 virtualenvs?
I would like to have a base virtualenv and then a more specific virtualenv that accesses all the packages from the base virtualenv and then has its own.
Any hint appreciated, thanks. | can I nest virtualenvs? | 0 | 0 | 0 | 3,527 |
10,745,931 | 2012-05-24T22:03:00.000 | 1 | 0 | 1 | 0 | python,performance,sockets,programming-languages,io | 10,757,187 | 2 | true | 0 | 0 | Your requirements are:
to work on windows;
the program has heavy threading and I/O
it heavily uses sockets in its I/O to send and receive data
it has some string manipulation using regular expressions.
The reason it is hard to say definitively which is the best language for this task is that almost all languages matc... | 2 | 2 | 0 | I'm writing a python program, to work on windows, the program has heavy threading and I/O, it heavily uses sockets in its I/O to send and receive data from remote locations, other than that, it has some string manipulation using regular expressions.
My question is: performance wise, is python the best programming langu... | Python socket I/O performance compared to other languages | 1.2 | 0 | 1 | 1,715 |
10,745,931 | 2012-05-24T22:03:00.000 | 2 | 0 | 1 | 0 | python,performance,sockets,programming-languages,io | 10,746,007 | 2 | false | 0 | 0 | Interesting question. The python modules that deal with sockets wrap the underlying OS functionality directly. Therefore, in a given operation, you are not likely to see any speed difference depending on the wrapper language.
Where you will notice speed issues with python is if you are involved in really tight loopin... | 2 | 2 | 0 | I'm writing a python program, to work on windows, the program has heavy threading and I/O, it heavily uses sockets in its I/O to send and receive data from remote locations, other than that, it has some string manipulation using regular expressions.
My question is: performance wise, is python the best programming langu... | Python socket I/O performance compared to other languages | 0.197375 | 0 | 1 | 1,715 |
10,748,021 | 2012-05-25T03:12:00.000 | 1 | 1 | 1 | 0 | java,python | 10,748,050 | 3 | false | 1 | 0 | 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. | 2 | 0 | 0 | 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? | 0.066568 | 0 | 0 | 417 |
10,748,021 | 2012-05-25T03:12:00.000 | 0 | 1 | 1 | 0 | java,python | 10,748,060 | 3 | false | 1 | 0 | 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? | 2 | 0 | 0 | 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? | 0 | 0 | 0 | 417 |
10,749,222 | 2012-05-25T06:01:00.000 | 0 | 0 | 1 | 0 | python,events,data-structures,asynchronous | 10,749,364 | 2 | false | 0 | 0 | Your gevent and threading are on the right track, because a function does what it is programmed to do, either accepting 1 var at a time or taking a set and returning either a set or a var. The function has to be called to return either result, and the continuous stream of processing is probably taking place already or ... | 1 | 0 | 0 | I have got stuck with a problem.
It goes like this,
A function returns a single result normally. What I want is it to return continuous streams of result for a certain time frame(optional).
Is it feasible for a function to repeatedly return results for a single function call?
While browsing through the net I did come a... | Return continuous result from a single function call | 0 | 0 | 0 | 2,597 |
10,752,434 | 2012-05-25T10:06:00.000 | 11 | 0 | 1 | 0 | python | 10,752,532 | 3 | true | 0 | 0 | sets are optimized for this creation. Unless you want to roll out your own decimal-to-string conversion (and that would take more than one line), it's the way to go.
range only allocates memory in Python 2.x. For small numbers like 623562, the memory shouldn't be a problem. For larger numbers, use xrange in Python 2.x ... | 1 | 0 | 0 | I'm searching for a way to count unique digits efficiently with a one liner.
For example: given the integer 623562, return value would be 4.
My current way of doing it is, given integer i, im using len(set(str(i))).
Creating a set is time consuming. I'm going over alot of numbers so I need an efficient way.
Also, if so... | Count unique digits one liner (efficiently) | 1.2 | 0 | 0 | 2,448 |
10,754,496 | 2012-05-25T12:32:00.000 | 0 | 0 | 0 | 1 | python,eclipse,pydev | 10,803,047 | 2 | false | 1 | 0 | The only one so far I found available is PyFlakes, it does some level of dependency check and import validations. | 1 | 0 | 0 | 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... | python eclipse dependency plugin - m2eclipse like | 0 | 0 | 0 | 195 |
10,758,774 | 2012-05-25T17:21:00.000 | 2 | 0 | 1 | 0 | python,regex,match | 10,758,828 | 2 | false | 0 | 0 | One, you are using match when it looks like you want findall. It won't grab the enclosing capital triplets, but re.findall('[A-Z]{3}([a-z])(?=[A-Z]{3})', search_string) will get you all single lower case characters surrounded on both sides by 3 caps. | 1 | 1 | 0 | Given a text, I need to check for each char if it has exactly (edited) 3 capital letters on both sides and if there are, add it to a string of such characters that is retured.
I wrote the following: m = re.match("[A-Z]{3}.[A-Z]{3}", text)
(let's say text="AAAbAAAcAAA")
I expected to get two groups in the match object: ... | Matching an object and a specific regex with Python | 0.197375 | 0 | 0 | 946 |
10,759,765 | 2012-05-25T18:40:00.000 | 2 | 0 | 1 | 0 | python,c,gcc,mingw,cython | 10,760,117 | 2 | false | 0 | 1 | The compiled file isn't an executable, it's a library (dll).
python modules on windows usually have a .pyd extension, so either rename your file to helloworld.pyd or use -o helloworld.pyd as argument for the compiler.
then you should be able to import helloworld from python. | 1 | 1 | 0 | I have a problem with python to C code translation and further compilation.
First, I installed MinGW, wrote `setup.py? script and translated python code (simplest helloworld) to C with Cython:
python setup.py build_ext --inplace
Then I tried to compile generated .c file:
gcc.exe helloworld.c -mdll -IC:\Python27\incl... | Cython and gcc: can't run compiled program | 0.197375 | 0 | 0 | 1,230 |
10,760,968 | 2012-05-25T20:27:00.000 | 0 | 1 | 1 | 0 | python,python-2.7,omniorb | 10,761,033 | 1 | false | 0 | 0 | you can't and shouldn't. it is compiled specifically for 2.7. that's why "2.7" appears in the download file name.
if you want to use a different python, download the source package and build it yourself. | 1 | 0 | 0 | I have downloaded the omniORB4.1.6 pre-compiled with msvc10. I have python 2.7 and everything seems to work fine. I want to know how i can tell my omniidl to use my python 2.6 installation instead of 2.7. Can anyone help me? Thanks. | Changing python from 2.7 to 2.6 for omniidl | 0 | 0 | 0 | 123 |
10,761,413 | 2012-05-25T21:11:00.000 | 5 | 0 | 1 | 1 | python,shell,ipython,interactive | 10,761,540 | 2 | true | 0 | 0 | cat is one of the pre-defined system command aliases. Type %alias to see the list of aliases in your current ipython session. | 1 | 5 | 0 | I noticed that using cat on a file works in ipython. It doesn't appear to be listed as a magic command... so I am confused how/why it works. What lets cat work in ipython interactive shell? | How does `cat` work in ipython interactive shell? | 1.2 | 0 | 0 | 2,575 |
10,762,199 | 2012-05-25T22:53:00.000 | 0 | 0 | 1 | 0 | python | 10,762,273 | 9 | false | 0 | 0 | the STRING.count method should work just fine for the first problem. If you look carefully, there actually aren't two non-overlapping 'sses' strings in assesses.
You either have a- sses -ses, or asse- sses. Do you see the issue? Calling "trans-Panamanian banana".count("an") produces the correct number.
I think using e... | 1 | 3 | 0 | I'm following a python website for my schoolwork. It's really neat, it gives you tasks to complete and compiles the code in the browser. Anyway, I came to a challenge that I'm not really sure how to go about.
One of the questions was:
The same substring may occur several times inside the same string: for example "asse... | Substring Counting in Python and Adding 2 Numbers From One Line of Input | 0 | 0 | 0 | 4,889 |
10,763,814 | 2012-05-26T05:24:00.000 | 1 | 0 | 0 | 0 | python,user-interface | 10,763,834 | 2 | false | 0 | 1 | The easiest GUI to make without "module/library" is a web-based one. I.e. generate HTML with Javascript from your Python code, and let the Javascript interact via AJAX with your Python app. This can be implemented without too much effort with just the standard Python library (and some JS code, of course), or with modul... | 1 | 1 | 0 | I googled and search stackoverflow before asking this question
Answers that I don't expect:
wxWidgets is the best Python GUIUse TkInter (BIM) for GUI development.
Q. How to make a GUI without using any module/library? i.e make a GUI from scratch. Modules like tkinter not allowed. | Python custom GUI | 0.099668 | 0 | 0 | 2,003 |
10,764,025 | 2012-05-26T06:03:00.000 | 2 | 0 | 1 | 0 | python,python-idle | 10,764,052 | 1 | false | 0 | 0 | According to the doc,
On Windows, HOME and USERPROFILE will be used if set, otherwise a
combination of HOMEPATH and HOMEDRIVE will be used. An initial ~user
is handled by stripping the last directory component from the created
user path derived above.
You can try run 'set' in command prompt to see if these two... | 1 | 1 | 0 | hi i am having trouble in running python IDLE.
once i have installed EMACS and uninstalled it, whenever i try to run python IDLE it gives me:
Warning: os.path.expanduser("~") points to
C:\Program Files\Emacs\,
but the path does not exist
the IDLE does work, but i can't launch IDLE by simply clicking on "open with IDLE"... | how do i change the value of os.path.expanduser("~") in python? | 0.379949 | 0 | 0 | 858 |
10,766,318 | 2012-05-26T12:44:00.000 | 2 | 0 | 1 | 0 | python,regex,string,search,match | 10,766,341 | 3 | false | 0 | 0 | In normal mode, you don't need ^ if you are using match.
But in multiline mode (re.MULTILINE), it can be useful because ^ can match not only the beginning of the whole string, but also beginning of every line. | 1 | 2 | 0 | From what I figured,
match: given a string str and a pattern pat, match checks if str matches the pattern from str's start.
search: given a string str and a pattern pat, search checks if str matches the pattern from every index of str.
If so, is there a meaning using '^' at the start of a regex with match?
From what I... | Python regex - understanding the difference between match and search | 0.132549 | 0 | 0 | 3,894 |
10,768,584 | 2012-05-26T18:01:00.000 | 55 | 1 | 0 | 1 | python | 30,690,444 | 2 | false | 0 | 0 | You can use -c to get Python to execute a string. For example:
python3 -c "print(5)"
However, there doesn't seem to be a way to use escape characters (e.g. \n). So, if you need them, use a pipe from echo -e or printf instead. For example:
$ printf "import sys\nprint(sys.path)" | python3 | 1 | 46 | 0 | Is it possible to execute python commands passed as strings using python -c? can someone give an example. | Execute python commands passed as strings in command line using python -c | 1 | 0 | 0 | 42,043 |
10,768,817 | 2012-05-26T18:36:00.000 | 0 | 0 | 0 | 0 | python,math,numpy,scipy | 10,768,872 | 2 | false | 0 | 0 | If the sequence does not have a lot of noise, just use the latest point, and the point for 1/3 of the current, then estimate your line from that. Otherwise do something more complicated like a least squares fit for the latter half of the sequence.
If you search on Google, there are a number of code samples for doing t... | 1 | 1 | 1 | I have a monotonically growing sequence of integers. For example
seq=[(0, 0), (1, 5), (10, 20), (15, 24)].
And a integer value greater than the largest argument in the sequence (a > seq[-1][0]). I want to estimate value corresponding to the given value. The sequence grows nearly linearly, and earlier values are less ... | How to calculate estimation for monotonically growing sequence in python? | 0 | 0 | 0 | 254 |
10,771,973 | 2012-05-27T05:55:00.000 | 2 | 0 | 0 | 1 | python,google-app-engine,webapp2 | 10,780,404 | 1 | true | 1 | 0 | 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... | 1 | 1 | 0 | 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... | SHA 512 Password with webapp2 and App Engine? | 1.2 | 0 | 0 | 827 |
10,772,132 | 2012-05-27T06:35:00.000 | 10 | 0 | 1 | 0 | python,file,module,project | 10,772,218 | 1 | true | 0 | 0 | I usually do it under these circumstances:
You could run parts of the application on thir own and running them would be useful (so they could be reused)
A part of the application is abstract and the rest is concrete (The abstract parts could be reused)
I want to divide it into 'plugins'
A single script would get insan... | 1 | 8 | 0 | To date I had been developing only small Python scripts. They were not longer than 500 lines per each. Now I'm going to write something bigger - I think it will have about 1000 lines. Is it good idea to handle it in one file or is it good time to organize code in subdirectories? I found some advices on how to modulari... | When to split code into files/modules? | 1.2 | 0 | 0 | 1,134 |
10,773,301 | 2012-05-27T10:36:00.000 | 0 | 0 | 1 | 0 | python,windows | 10,773,380 | 1 | false | 0 | 0 | Due to how the Windows loader works, this is impossible; DLLs loaded by the app (including .pyd files) do not have access to the symbol table used/provided by the executable by default, and so must read the symbols from the pythonX.Y.dll instead. | 1 | 3 | 0 | I need a python interpreter to be statically linked to my app (Windows app) that means, that I need no dlls with my app. My app will not use any third-party python modyles, only text scripts.
How can I do this? Or may be there are already compiled libs?
A need a 3.2 version of python | Statically linked python on Windows | 0 | 0 | 0 | 255 |
10,773,667 | 2012-05-27T11:33:00.000 | 0 | 0 | 0 | 1 | python,eclipse,google-app-engine,pydev | 10,773,714 | 1 | true | 1 | 0 | If you create a new project, you get all the new libs. Move your existing (imported) sources to this new project. | 1 | 0 | 0 | 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... | PyDev for App Engine - re-import External Libs | 1.2 | 0 | 0 | 149 |
10,775,351 | 2012-05-27T16:03:00.000 | 7 | 0 | 1 | 0 | python,node.js,ipc | 10,775,437 | 7 | false | 0 | 0 | If you arrange to have your Python worker in a separate process (either long-running server-type process or a spawned child on demand), your communication with it will be asynchronous on the node.js side. UNIX/TCP sockets and stdin/out/err communication are inherently async in node. | 1 | 134 | 0 | Node.js is a perfect match for our web project, but there are few computational tasks for which we would prefer Python. We also already have a Python code for them.
We are highly concerned about speed, what is the most elegant way how to call a Python "worker" from node.js in an asynchronous non-blocking way? | Combining node.js and Python | 1 | 0 | 1 | 116,462 |
10,779,244 | 2012-05-28T04:10:00.000 | 1 | 0 | 0 | 0 | python,mysql,sql | 10,779,681 | 3 | false | 0 | 0 | HighCharts have awesome features you can also build pivot charts using that one but they will charge you .You can look over Py Chart also | 1 | 0 | 0 | Let's say I get sales data every 15 minutes. The sales transactions are stored in a mysql database. I need to be able to graph this data, and allow the user to re-size the scale of time. The info would be graphed on a django website.
How would I go about doing this, and are there any open source tools that I could loo... | How to graph mysql data in python? | 0.066568 | 1 | 0 | 3,292 |
10,780,165 | 2012-05-28T06:22:00.000 | 1 | 0 | 1 | 0 | python | 10,780,293 | 1 | true | 0 | 0 | If you explicitly call your Python 2.6 Binary when installing the package it will install to that instance instead. So instead of python setup.py install you would do /path/to/python26 setup.py install. | 1 | 1 | 0 | I have python 2.7 by default and 2.6 but I need some modules installed on python 2.6 .But by default it is installing on 2.7.Any idea how to do it. | how to install library modules on python version which is not default | 1.2 | 0 | 0 | 100 |
10,780,523 | 2012-05-28T06:53:00.000 | 2 | 0 | 0 | 0 | python,wxpython | 10,780,744 | 1 | false | 0 | 0 | wx.lib.agw.persist is new in 2.8.12.1. | 1 | 1 | 0 | I am using fedora and wxpython version 2.8.12 .While trying to import wx.lib.agw.persist
I am getting an error saying
Import Error: No module persist.
Will the module not be there by default with wxPython, if not how do I get this module installed? please help me. | Error importing persist module | 0.379949 | 0 | 0 | 58 |
10,781,201 | 2012-05-28T07:57:00.000 | 2 | 0 | 0 | 0 | python,import,module | 10,781,228 | 1 | true | 0 | 1 | Why not have a list of all "system" modules that you need to have loaded which will be imported first, before then looking in sub-folders for all your mods and importing those ?
That way you still maintain your base system and only afterwards do you load up subsequent user mods. | 1 | 0 | 0 | I've added support for mods for my game. Any Python module put in a specific folder is automatically imported on startup. All is fine, except now I've written an official mod which allows mod makers to easily add GUI settings of their mods to a single toggable GUI frame. They are not forced to use it, but it greatly si... | Telling a module to be imported first by the module itself? | 1.2 | 0 | 0 | 68 |
10,781,998 | 2012-05-28T09:04:00.000 | 0 | 1 | 0 | 0 | python-3.x | 10,809,754 | 1 | false | 0 | 0 | Ask your Web host:
1) for a simple "hello, world" script (in Python, I assume) that will work on their server 2) where you need to store the file (in the server file system) 3) what you need to name it (ex: index.py or .py or whatever) 4) what permissions the script file needs to have (ask them for a "se... | 1 | 0 | 0 | I have written cgi script for the login page in python but I am not familiar with running the CGI script?Please help me by giving the steps to run the script? | Running the CGI script | 0 | 0 | 0 | 122 |
10,785,105 | 2012-05-28T13:00:00.000 | 5 | 1 | 1 | 0 | python,bytecode | 10,785,135 | 2 | false | 0 | 0 | The bytecode is in memory while running the interpreter. The .pyc files are a cache for the next import of the code, so that python will not have to parse the code if it has not changed. | 1 | 1 | 0 | If I import a module1.py from the python command line in windows 7 I see the corresponding module1.pyc file appear in the Python32/pycache/ folder. My understanding was that it is this bytecode which is executed by the Python interpreter, however I can delete the module1.pyc file and my module functions (module1.func1... | How does Python run module code when there's no matching .pyc file? | 0.462117 | 0 | 0 | 905 |
10,788,211 | 2012-05-28T17:09:00.000 | 1 | 0 | 0 | 0 | python,gtk3 | 11,008,840 | 2 | false | 0 | 1 | Put the label in a container like GtkScrolledWindow. | 2 | 0 | 0 | I want to fit some text in a label. I almost managed to do it: when I enlarge the window, I add some <big> tags to the label and the text enlarges with the window. But if I try to shrink the window, the size-request of the label doesn't let me do it.
The label is updated many times a second, so if I try to set a custom... | Remove the size request of a widget (Python, Gtk3) | 0.099668 | 0 | 0 | 291 |
10,788,211 | 2012-05-28T17:09:00.000 | 1 | 0 | 0 | 0 | python,gtk3 | 33,259,216 | 2 | true | 0 | 1 | Set the "ellipsize" property of label to True. | 2 | 0 | 0 | I want to fit some text in a label. I almost managed to do it: when I enlarge the window, I add some <big> tags to the label and the text enlarges with the window. But if I try to shrink the window, the size-request of the label doesn't let me do it.
The label is updated many times a second, so if I try to set a custom... | Remove the size request of a widget (Python, Gtk3) | 1.2 | 0 | 0 | 291 |
10,789,834 | 2012-05-28T19:56:00.000 | 3 | 0 | 0 | 0 | python,nlp,nltk | 10,790,083 | 2 | false | 0 | 0 | In this case, the work not modifies the meaning of the phrase expecteed to win, reversing it. To identify this, you would need to POS tag the sentence and apply the negative adverb not to the (I think) verb phrase as a negation. I don't know if there is a corpus that would tell you that not would be this type of modifi... | 1 | 5 | 1 | Good day,
I'm attempting to write a sentimental analysis application in python (Using naive-bayes classifier) with the aim to categorize phrases from news as being positive or negative.
And I'm having a bit of trouble finding an appropriate corpus for that.
I tried using "General Inquirer" (http://www.wjh.harvard.edu/~... | Phrase corpus for sentimental analysis | 0.291313 | 0 | 0 | 1,434 |
10,790,381 | 2012-05-28T21:01:00.000 | 2 | 0 | 0 | 1 | python,google-app-engine | 10,791,742 | 2 | false | 1 | 0 | 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... | 1 | 2 | 0 | 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! | In app engine, can I call "get_or_insert" from inside a transaction? | 0.197375 | 1 | 0 | 308 |
10,791,157 | 2012-05-28T22:40:00.000 | 0 | 0 | 1 | 0 | python,eclipse,pydev | 10,791,205 | 2 | false | 0 | 0 | You can press the Restart the current launch icon in the console | 1 | 2 | 0 | This is a simple one.
I'm using PyDev on OS X 10.6. I have a certain module that I run to start my application. Whenever I make changes in other modules I need to switch the view to the starter module to launch or select it from the Run drop down menu. I'm curious, is there a shortcut or setting to set the default mod... | PyDev: Always run the same module | 0 | 0 | 0 | 106 |
10,792,748 | 2012-05-29T03:30:00.000 | 2 | 0 | 0 | 1 | python,fabric | 10,807,419 | 2 | false | 0 | 0 | It's just python, so you can print whatever you'd like, as well as making your own decorator to wrap the task and spit that out. As it stands though there isn't anything in core nor contrib that does that. | 1 | 5 | 0 | When I'm administering dozens of servers with Fabric, I often don't care about the specifics of the commands being run on each server, instead I want to collate small bits of information from each host and present it in summary at the end.
Does Fabric support this functionality itself? (I've searched the documentation ... | Is there a way to make Fabric summarise results across a number of hosts? | 0.197375 | 0 | 0 | 391 |
10,793,042 | 2012-05-29T04:23:00.000 | 4 | 0 | 0 | 0 | python,sqlite,fastcgi | 10,796,243 | 1 | true | 0 | 0 | Ffinally I found the answer:
the sqlite3 library needs write permissions also on the directory that contains it, probably because it needs to create a lockfile.
Therefor when I use sql to insert data there is no problem, but when I do it through web cgi,fastcgi etc）to insert data there would be an error.
Just add wri... | 1 | 2 | 0 | In db.py,I can use a function(func insert) insert data into sqlite correctly.
Now I want to insert data into sqlite through python-fastcgi, in
fastcgi (just named post.py ) I can get the request data correctly,but
when I call db.insert,it gives me internal server error.
I already did chmod 777 slqite.db. Anyo... | sqlite3 insert using python and python cgi | 1.2 | 1 | 0 | 1,289 |
10,793,272 | 2012-05-29T04:59:00.000 | 1 | 0 | 0 | 0 | python,ajax,django,web-applications | 10,795,821 | 1 | true | 1 | 0 | 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. | 1 | 0 | 0 | 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... | Django & AJAX Changing Div Contents | 1.2 | 0 | 0 | 522 |
10,795,095 | 2012-05-29T07:51:00.000 | 3 | 0 | 0 | 0 | python,flask | 10,798,159 | 1 | true | 1 | 0 | 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... | 1 | 8 | 0 | 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... | Where do I put cleanup code in a Flask application? | 1.2 | 0 | 0 | 4,055 |
10,795,682 | 2012-05-29T08:35:00.000 | 5 | 0 | 1 | 0 | python | 10,795,715 | 3 | true | 0 | 0 | AFAIK, memory addresses in Cpython are - by design - static. The memory address of an object can be seen with id(). The name of the function is a tell-tale of the fact it doesn't change...
See however the comment below, where other SO users pointed out that id() being the memory address is a detail implementation of Cp... | 2 | 5 | 0 | If the same object is invoked multiple times in python, will the memory location always be the same when I print 'self'? | Do python objects move in memory during execution? | 1.2 | 0 | 0 | 664 |
10,795,682 | 2012-05-29T08:35:00.000 | 1 | 0 | 1 | 0 | python | 10,796,065 | 3 | false | 0 | 0 | As mac noticed, memory addresses in Cpython are - by design - static
But even on Cpython you can't relay on this if you are using some c extensions.
Some of them can move objects and manually drive garbage collector.
And if you are using other Python implementations, as PyPy, you are certain not guaranteed that the obj... | 2 | 5 | 0 | If the same object is invoked multiple times in python, will the memory location always be the same when I print 'self'? | Do python objects move in memory during execution? | 0.066568 | 0 | 0 | 664 |
10,796,821 | 2012-05-29T09:56:00.000 | 21 | 1 | 1 | 0 | python,exception-handling | 10,796,924 | 2 | true | 0 | 0 | sys.exit raises a SystemExit itself so from a purely technical point of view there's no difference between raising that exception yourself or using sys.exit. And yes you can catch SystemExit exceptions like any other exception and ignore it.
So it's just a matter of documenting your intent better.
PS: Note that this al... | 1 | 14 | 0 | What is the difference between calling sys.exit() and throwing an exception in Python?
Let's say I have a Python script which does the following:
open a file
read lines
close it
If the file doesn't exist or an IOException gets thrown at runtime, which of the options below makes more sense?
no except/catch of the exc... | Difference between calling sys.exit() and throwing exception | 1.2 | 0 | 0 | 8,832 |
10,798,448 | 2012-05-29T11:42:00.000 | 0 | 0 | 1 | 0 | python,zip | 10,906,300 | 1 | false | 0 | 0 | No. The python ZipFile module does not provide any way to do that.
You can extract the archive into memory, and then rewrite it with the new filename for the file in question, but that is memory intensive and not what you want to do.
You may be able to edit the zipfile's header and information fields, but the standard... | 1 | 3 | 0 | Is there is a way to rename the file name inside the compressed file ,but without extract it, in python ?? | How I can rename the contents of compressed file befor extract in python? | 0 | 0 | 0 | 282 |
10,800,039 | 2012-05-29T13:20:00.000 | 0 | 0 | 0 | 0 | python,database,arrays,save,hdf5 | 10,802,164 | 3 | false | 0 | 0 | I would use a single file with fixed record length for this usecase. No specialised DB solution (seems overkill to me in that case), just plain old struct (see the documentation for struct.py) and read()/write() on a file. If you have just millions of entries, everything should be working nicely in a single file of s... | 2 | 3 | 1 | I'm currently rewriting some python code to make it more efficient and I have a question about saving python arrays so that they can be re-used / manipulated later.
I have a large number of data, saved in CSV files. Each file contains time-stamped values of the data that I am interested in and I have reached the point ... | Saving large Python arrays to disk for re-use later --- hdf5? Some other method? | 0 | 0 | 0 | 1,123 |
10,800,039 | 2012-05-29T13:20:00.000 | 2 | 0 | 0 | 0 | python,database,arrays,save,hdf5 | 10,817,026 | 3 | true | 0 | 0 | HDF5 is an excellent choice! It has a nice interface, is widely used (in the scientific community at least), many programs have support for it (matlab for example), there are libraries for C,C++,fortran,python,... It has a complete toolset to display the contents of a HDF5 file. If you later want to do complex MPI calc... | 2 | 3 | 1 | I'm currently rewriting some python code to make it more efficient and I have a question about saving python arrays so that they can be re-used / manipulated later.
I have a large number of data, saved in CSV files. Each file contains time-stamped values of the data that I am interested in and I have reached the point ... | Saving large Python arrays to disk for re-use later --- hdf5? Some other method? | 1.2 | 0 | 0 | 1,123 |
10,801,911 | 2012-05-29T15:12:00.000 | 0 | 0 | 1 | 0 | python,nosetests | 10,804,538 | 1 | false | 0 | 0 | Drop the nosetests as it's too hard to make them work on different versions of python and switch to tox eventually calling py.test from tox. | 1 | 2 | 0 | I do have several python packages that I do test using nosetest, and as expected one of the steps is to run the tests using several versions of Python.
The main problem is that most nose extensions are not compatible with all versions of python and not having them install will prevent you from running the tests (nose w... | How to deal with nose extensions that are not available under certain versions of python? | 0 | 0 | 0 | 102 |
10,803,012 | 2012-05-29T16:22:00.000 | 0 | 0 | 0 | 0 | python,mysql,odbc,pyodbc | 10,803,049 | 3 | false | 0 | 0 | As long as you use the same connection, the database should show you a consistent view on the data, e.g. with all changes made so far in this transaction.
Once you commit, the changes will be written to disk and be visible to other (new) transactions and connections. | 2 | 2 | 0 | I have run a few trials and there seems to be some improvement in speed if I set autocommit to False.
However, I am worried that doing one commit at the end of my code, the database rows will not be updated. So, for example, I do several updates to the database, none are committed, does querying the database then give ... | Does setting autocommit to true take longer than batch committing? | 0 | 1 | 0 | 1,170 |
10,803,012 | 2012-05-29T16:22:00.000 | 1 | 0 | 0 | 0 | python,mysql,odbc,pyodbc | 10,803,230 | 3 | false | 0 | 0 | The default transaction mode for InnoDB is REPEATABLE READ, all the read will be consistent within a transaction. If you insert rows and query them in the same transaction, you will not see the newly inserted row, but they will be stored when you commit the transaction. If you want to see the newly inserted row before ... | 2 | 2 | 0 | I have run a few trials and there seems to be some improvement in speed if I set autocommit to False.
However, I am worried that doing one commit at the end of my code, the database rows will not be updated. So, for example, I do several updates to the database, none are committed, does querying the database then give ... | Does setting autocommit to true take longer than batch committing? | 0.066568 | 1 | 0 | 1,170 |
10,803,329 | 2012-05-29T16:44:00.000 | 3 | 0 | 1 | 0 | javascript,python,oop,class | 10,803,565 | 2 | false | 0 | 0 | What is the best approach to this kind of problem?
Some game developers would say that OOP is not the type of programming you would use for games. They would have a global data store, and use procedural code to access the global data store.
You're the only one who can really answer this question. Did your classes he... | 1 | 2 | 0 | I made two games so far, one was a simple 2D MMO, and another one was a 2D portal clone with some more features.
Anyway, I noticed that my class design in those two games varied a bit:
In the MMO, I'd create a class called "Enemy", and this class would take some arguments such as image and attack_power.
In the Portal-l... | How specific should my classes in a game be? (Or anywhere else for that matter) | 0.291313 | 0 | 0 | 107 |
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