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• Resizing image algorithm in python

  - by hippocampus

  So, I'm learning my self python by this tutorial and I'm stuck with exercise number 13 which says: Write a function to uniformly shrink or enlarge an image. Your function should take an image along with a scaling factor. To shrink the image the scale factor should be between 0 and 1 to enlarge the image the scaling factor should be greater than 1.…

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• Boost Python : How to only expose the constructor of a class with virtual (pure & impure) methods

  - by fallino

  Hello, I'm a newbie with Boost::Python but I tried to search on the web to do so I want to expose a 3rd party library to Python. One of the class of the library (.hpp) is composed of a public constructor with arguments a protected constructor and functions various regular functions various pure virtual functions various non pure virtual…

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• How to solve non-linear equations using python

  - by stars83clouds

  I have the following code: #!/usr/bin/env python from scipy.optimize import fsolve import math h = 6.634e-27 k = 1.38e-16 freq1 = 88633.9360e6 freq2 = 88631.8473e6 freq3 = 88630.4157e6 def J(freq,T): return (h*freq/k)/(math.exp(h*freq/(k*T))-1) def equations(x,y,z,w,a,b,c,d): f1 =…

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• Why do I get "unsupported architecture" errors trying to install a Python library in OSX?

  - by Emma518

  I am trying to install a Python library in the Presto package, source http://www.cv.nrao.edu/~sransom/presto/ Using 'gmake fftfit' I get the following error: cd fftfit_src ; f2py-2.7 -c fftfit.pyf *.f running build running config_cc unifing config_cc, config, build_clib, build_ext, build…

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• "import numpy" tries to load my own package

  - by Sebastian

  I have a python (2.7) project containing my own packages util and operator (and so forth). I read about relative imports, but perhaps I didn't understand. I have the following directory structure: top-dir/ util/__init__.py (empty) util/ua.py util/ub.py operator/__init__.py ...…

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• cakephp datetime insertion behaviour

  - by littlechad

  hi everyone this is a cakePHP question about datetime database insertion mismatch, i jumped in to this project while the whole thing is already built around 70%. here's what happen, every time i insert a data that contain a datetime, the inserted time doesn't match the inputted date, and…

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• Python 3: receive user input including newline characters

  - by Beau Martínez

  I'm trying to read in the following text from the command-line in Python 3 (copied verbatim, newlines and all): lcbeika rraobmlo grmfina ontccep emrlin tseiboo edosrgd mkoeys eissaml knaiefr Using input, I can only read in the first word as once it reads the first newline it stops…

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• Importing modules on portable python

  - by PPTim

  Hi, I am running PortablePython_1.1_py2.6.1 on a USB stick. My code relies on some modules that are not preinstalled. Does anyone know whether it is possible to add new modules to a portable python installation? Simply copying in folders into site-lib does not seem to work.

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• Get fully qualified class name of an object in python

  - by Hanno Stock

  For logging purposes I want to retrieve the fully qualified class name of a Python object. (With fully qualified I mean the class name including the package and module name.) I know about x.__class__.__name__, but is there a simple method to get the package and module?

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• How to write full chat server / client using python 2.5

  - by Reetesh Nigam

  Hi All, I want to write server/client chat protocol using python-2.5 . I want to make protocol similar to yahoo messenger or google-talk. Please suggest me how to start. Thanks Reetesh Nigam

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• Replacement for htmllib module in Python 3.0

  - by Abbas

  I want to use the htmllib module but it's been removed from Python 3.0. Does anyone know what's the replacement for this module?

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• Getting traceback from Python C API

  - by TheObserver

  I have a Python C API extension module which occassionally falls over with an uninformative "MemoryError". It's clearly not an error that's catered for by the module's exception handlers. How do I get a more informative error traceback so I can figure out what's gone wrong in the…

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• Does python-memcached support consistent hashing & binary protocol?

  - by Continuation

  Python-memcached is the official supported memcached driver for Django. Does it support Consistent hashing Binary protocol If it does, how do I use those features within Django? I couldn't find any documentation.

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• Generate a random letter in Python

  - by Waterfox

  Is there a way to generate random letters in Python (like random.randint but for letters)? The range functionality of random.randint would be nice but having a generator that just outputs a random letter would be better than nothing.

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• Ubuntu python IDE for python

  - by TheFuzz

  looking for a nice IDE for a linux environment for the python language.

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• Get client ip with python

  - by Elad

  Hi, I'm a newbie in python. I want to write a simple web that prints the client ip on screen my http.conf Handler: AddHandler mod_python .py PythonHandler mod_python.publisher PythonDebug On The cgi.escape(os.environ["REMOTE_ADDR"]) return this error: KeyError:…

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• Python-Requests close http connection

  - by James Eggers

  I was wondering, how do you close a connection with Requests (python-requests.org)? With httplib it's HTTPConnection.close(), but how do I do the same with Requests? Code is below: r = requests.post("https://stream.twitter.com/1/statuses/filter.json",…

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• Screen overlay with Python, paint over an active window with background python script

  - by tvlife.admin

  Hi I'm writing a python script that runs in the background and takes screenshots of another application that is active. Then it analyses the screenshots and now it should overlay a certain image over the active app or the screen. I still need to be able to…

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• Python 3.1: Windows cant file the file on subprocess.call()

  - by Srirangan

  I am getting the following error: WindowsError: [Error 2] The system cannot find the file specified My code is: subprocess.call(["<<executable file found in PATH>>"]) Windows 7, 64 bit. Python 3.x latest, stable. Any ideas? Thanks,

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• can Distribute setuptool be used to convert python 2 packages to python 3?

  - by karnol

  As per the below link porting python packages from 2 to 3 would be easy when distribute is used. Is tat true? anyone tried before? karnol

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• Pinging servers in Python

  - by Waterfox

  In Python, is there a way to ping a server through ICMP and return TRUE if the server responds, or FALSE if there is no response?

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• Adjusting Timezone - Convert XML DateTime to SQL DateTime

  - by noob.spt

  We are using TypedDataSet in our application. Data is passed to procedure in form of XML for insert/update. Now after populating DE with data, datetime remains the same though timezone information is added as below. Date in DB: 2009-10-29 18:52:53.43…

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• getting a pyserial not loaded error

  - by skinnyTOD

  I'm getting a "pyserial not loaded" error with the python script fragment below (running OSX 10.7.4). I'm trying to run a python app called Myro for controlling the Parallax Scribbler2 robot - figured it would be a fun way to learn a bit of Python - but…

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• DataTable.Select Behaves Strangely Using ISNULL Operator on NULL DateTime Column

  - by Paul Williams

  I have a DataTable with a DateTime column, "DateCol", that can be DBNull. The DataTable has one row in it with a NULL value in this column. I am trying to query rows that have either DBNull value in this column or a date that is greater than today's…

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• MS SQL datetime precision problem

  - by Nailuj

  I have a situation where two persons might work on the same order (stored in an MS SQL database) from two different computers. To prevent data loss in the case where one would save his copy of the order first, and then a little later the second would…

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