In Python, what are some examples of when decorators greatly simplify a task?
- by ensnare
Trying to find examples of when decorators might be really beneficial, and when not so much.
Sample code is appreciated.
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Is there a free python debugger that has watchpoints?
- by John
pdb and winpdb both seem to be missing this essential (to me) feature. I saw something suggesting WingIDE has it but I'd prefer a solution that is free, and if I do have to pay, I'd prefer to pay for something that is better than Wing.Read the article
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When where and how can i change the __class__ attr of an object in Python?
- by Juanjo Conti
I'd like to be able to do: >>> class a(str): ... pass ... >>> b = a() >>> b.__class__ = str Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: __class__ assignment: only for heap typesRead the article
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Why does Python Array Module Process Strings and Lists Differently?
- by Casey
I'm having trouble understanding the result of the following statements: >>> from array import array >>> array('L',[0xff,0xff,0xff,0xff]) array('L', [255L, 255L, 255L, 255L]) >>> from array import array >>> array('L','\xff\xff\xff\xff') Traceback (most recent call last): File "<stdin>", line 1, in…Read the article
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When is Python 3.1 meant to become mainstream Python version?
- by Ivan
When is Python 3.1 meant to become mainstream Python version? How many years are to pass before Python 3.1 support and adoption grows any close to of today Python 2.6?Read the article
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Python-How to call up a function from another module?
- by user2691540
I am making a project where I need several modules which are imported into one main module to make a pizza ordering service. Upon finishing this (to a working standard) I decided to re-code it so that the whole order is completed with one tkinter window, now instead of using input(), I use tkinter.Entry() etc. etc. To do this I had to use…Read the article
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problem with python script
- by hidayat
I want to run a csh file from a python scrip, example, #!/usr/bin/python import os os.system("source path/to/file.csh") and I want this file to run in the same shell as I am running the python script, because the file.csh script is settings some environment variables that I need. Does anyone know how to do this in Python?Read the article
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Problem installing MySQLdb on windows - Can't find python
- by aldux
I'm trying to install the module mySQLdb on a windows vista 64 (amd) machine. I've installed python on a different folder other than suggested by Python installer. When I try to install the .exe mySQLdb installer, it can't find python 2.5 and it halts the installation. Is there anyway to supply the installer with the correct python…Read the article
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Mutable global variables don't get hide in python functions, right?
- by aXqd
Please see the following code: def good(): foo[0] = 9 # why this foo isn't local variable who hides the global one def bad(): foo = [9, 2, 3] # foo is local, who hides the global one for func in [good, bad]: foo = [1,2,3] print('Before "{}": {}'.format(func.__name__, foo)) func() print('After "{}":…Read the article
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Why does Python array moduel handle strings and lists differently?
- by Casey
I'm having trouble understanding the result of the following statements: >>> from array import array >>> array('L',[0xff,0xff,0xff,0xff]) array('L', [255L, 255L, 255L, 255L]) >>> from array import array >>> array('L','\xff\xff\xff\xff') Traceback (most recent call last): File…Read the article
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call a server side python script from javascript
- by alex
how to call a server side python script from javascript. if test.py is the python script file in server, and if the parameter to be passed to python is another url , then how this can be executed from javascript, how the return string from python script is obtained to the javascript.Read the article
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String replacement on a whole text file in Python 3.x?
- by SkippyFire
How can I replace a string with another string, within a given text file. Do I just loop through readline() and run the replacement while saving out to a new file? Or is there a better way? I'm thinking that I could read the whole thing into memory, but I'm looking for a more elegant solution... Thanks in…Read the article
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python: html writer?
- by Bin Chen
With jquery it's very easy to insert some element inside another element using the selector technology, I am wondering if there is any python library that can do things similar with jquery, the reason is I want server side python program to produce the static pages, which needs to parse the html and insert…Read the article
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Where is python Language used
- by Mirage
I am a web developer and usually use php/JS/mysql. I have heard lot about python. I have no idea where is python used and why it is used. Just like php/asp/cold fusion/.net/ are used to build websites C, C++ , Java are used to build software or desktop apps Where does python stands from those…Read the article
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Python: what modules have been imported in my process?
- by Mark Harrison
How can I get a list of the modules that have been imported into my process?Read the article
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How to query an input in Python without outputting a new line (cont.)
- by Waterfox
I already posted this, but here is the exact code: x1 = input("") x2 = input("-") x3 = input("-") x4 = input("-") So, how would I do it so that there are no spaces between the first input and the next "-"? Example: 1234-5678-9101-1121Read the article
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Carrot (Python) [errno 10054] An existing connection was forcibly closed by the remote host
- by Meditation
Hi all, We are using Carrot in our Python project. I wrote a Python script acting as the consumer of the message queue. I invoked this Python script using command line shell in Windows 7 as python consumer.py However, after a while, the running session was aborted and the error is: [errno 10054]…Read the article
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Is there a way to accept '%' as part of input that works both in python 2.6 & 3.0?
- by bug11
In 2.6, if I needed to accept input that allowed a percent sign (such as "foo % bar"), I used raw_input() which worked as expected. In 3.0, input() accomplishes that same (with raw_input() having left the building). As an exercise, I'm hoping that I can have a backward-compatible version that will…Read the article
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Executing Windows administrative shell commands on Windows using Python
- by at0m
I have a batch script using Windows shell commands to perform several administrative actions. The script is running great on Windows 7 but when i try launching it from Python 2.6 nothing happens: import os a = os.popen("somebatchfile.bat") I assume that this is because the bat file uses several…Read the article
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Python bindings for a vala library
- by celil
I am trying to create python bindings to a vala library using the following IBM tutorial as a reference. My initial directory has the following two files: test.vala using GLib; namespace Test { public class Test : Object { public int sum(int x, int y) { return x + y; …Read the article
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SQLite, python, unicode, and non-utf data
- by Nathan Spears
I started by trying to store strings in sqlite using python, and got the message: sqlite3.ProgrammingError: You must not use 8-bit bytestrings unless you use a text_factory that can interpret 8-bit bytestrings (like text_factory = str). It is highly recommended that you instead just…Read the article
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SQLite, python, unicode, and non-utf data
- by Nathan Spears
I started by trying to store strings in sqlite using python, and got the message: sqlite3.ProgrammingError: You must not use 8-bit bytestrings unless you use a text_factory that can interpret 8-bit bytestrings (like text_factory = str). It is highly recommended that you instead just…Read the article
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What's the best way to create a static utility class in python? Is using metaclasses code smell?
- by rsimp
Ok so I need to create a bunch of utility classes in python. Normally I would just use a simple module for this but I need to be able to inherit in order to share common code between them. The common code needs to reference the state of the module using it so simple imports wouldn't work well. I…Read the article
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Getting error while install mod_wsgi on centos6.3 with python 2.7
- by user825904
In initially installed yum install mod_wsgi and i think it was linked with python 2.6 Now is there any way to link it with 2.7 I tried configuring from the source and i get this error apxs -c -I/usr/local/include/python2.7 -DNDEBUG mod_wsgi.c -L/usr/local/lib…Read the article
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OSX: Python packages fail to install, error message "/usr/local/bin: File Exists"
- by kylehotchkiss
I keep trying to install django and other python packages, and I keep getting the exact same error message: Installing django-admin.py script to /usr/local/bin error: /usr/local/bin: File exists So I look to make sure that my /usr/local folder is okay. At first…Read the article
