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How to avoid having class data shared among instances?
... @AmalTs It looks like you don't understand how assignment in python works. See this video or this SO post. The behaviour you see is caused by the fact that you are mutating lists but rebinding references to ints and strings.
– Андрей Беньковский
...
“inconsistent use of tabs and spaces in indentation”
I'm trying to create an application in Python 3.2 and I use tabs all the time for indentation, but even the editor changes some of them into spaces and then print out "inconsistent use of tabs and spaces in indentation" when I try to run the program.
...
Reading a huge .csv file
I'm currently trying to read data from .csv files in Python 2.7 with up to 1 million rows, and 200 columns (files range from 100mb to 1.6gb). I can do this (very slowly) for the files with under 300,000 rows, but once I go above that I get memory errors. My code looks like this:
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What is this 'Lambda' everyone keeps speaking of?
...otos global variables.
Looking at your profile I see that you're mostly a Python user. For the above pattern, Python has the concept of decorators. There are lots of example on the net for memoization decorators. The only difference is that in Python you most likely have a named nested function ins...
How to check for DLL dependency?
...
I can recommend interesting solution for Linux fans. After I explored this solution, I've switched from DependencyWalker to this.
You can use your favorite ldd over Windows-related exe, dll.
To do this you need to install Cygwin (basic installation, without additi...
How do I add a path to PYTHONPATH in virtualenv
I am trying to add a path to the PYTHONPATH environment variable, that would be only visible from a particular virtualenv environment.
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How can I check if character in a string is a letter? (Python)
...nt from the “Alphabetic” property defined in the Unicode Standard.
In python2.x:
>>> s = u'a1中文'
>>> for char in s: print char, char.isalpha()
...
a True
1 False
中 True
文 True
>>> s = 'a1中文'
>>> for char in s: print char, char.isalpha()
...
a Tru...
Django: How to manage development and production settings?
...Django documentation:
The value of DJANGO_SETTINGS_MODULE should be in Python path syntax, e.g. mysite.settings. Note that the settings module should be on the Python import search path.
So, let's assume you created myapp/production_settings.py and myapp/test_settings.py in your source reposit...
Is it feasible to do (serious) web development in Lisp? [closed]
...hey don't have the same level of documentation/adoption as, say, Django on Python.
Here are some commercial lisp products:
Lispworks
Franz Allegro CL
Its also worth noting that Reddit was initially built in Lisp, but the authors later migrated to Python, citing a lack of well used and documente...
Pipe subprocess standard output to a variable [duplicate]
I want to run a command in pythong , using the subprocess module, and store the output in a variable. However, I do not want the command's output to be printed to the terminal.
For this code:
...