python

Pass data between objects in python

I'm new to python and I'm not sure how to pass data between objects. Below is a tabbed program using python and wxwidgets. How would I be able to access the maintxt instance from the GetText method since their in different classes? Thanks. ........ #!/usr/bin/env python import wx class PageText(wx.Panel): def __init__(self, pare...

Python, format this list

I've got a list like [(1, 2), (1, 8), (2, 3), (2, 7), (2, 8), (2, 9), (3, 1), (3, 2), (3, 5), (3, 6), (3, 7), (3, 7), (3, 9)] I want to make it looks like [('1',' ', '2', '8'), ('2', ' ', '3', '7', '8', '9'), ('3', " ", '2', '5', '6', '7', '7', '9')] How can I code this loop? Really tried times, and nothing came up. Please help~~ ...

is there a way find substring index through regual expression in python?

i want to find a substring 's index postion,but the substring is long and hard to expression(multiline,& even you need escape for it ) so i want to use regex to match them,and return the substring's index, the function like str.find or str.rfind , is there some package help for this? ...

python slice how to, I know the python slice but how can I use built-in slice object for it?

I want to know what's the use of built-in function slice and how can I use it, the direct way of pythonic slicing I know l1[start:stop:step], I want to know if I have object of slice then howto? ...

Possible to do ordered dictionary in python 2.5 (due to GAE)?

I'm new to Python, and using Google App Engine, which is currently running only Python 2.5. Are there any built-in ways of doing an ordered dictionary, or do I have to implement something custom? ...

What have i done wrong? (python help)

The question i'm working on asks me to "write an expression whose value is the concatenation of the three str values associated with name1 , name2 , and name3" , separated by commas." "So if name1 , name2 , and name3 , were (respectively) "Neville", "Dean", and "Seamus", your expression's value would be "Neville,Dean,Seamus". " T...

Python: What is the recommended way to set configuration settings for a module when you import it?

I've seen people use monkey-patching to set options on a module, for example: import mymodule mymodule.default_img = "/my/file.png" mymodule.view_default_img() And Django, for example, has settings.py for the entire Django app, and it always grates on me a little. What are the other ways to manage...

Getting more detail from stack traces

Is there a convenient way to get a more detailed stack trace on a Python exception? I'm hoping to find a wrapper utility/module or some other way to get a bit more info from the stack trace without having to actually modify the Python script that generates it. I'd like to be able to use this when running unit tests, or doctests, or whe...

How does this Python Lambda recursion expression work?

rec_fn = lambda: 10==11 or rec_fn() rec_fn() I am new to Python and trying to understand how lambda expressions work. Can somebody explain how this recursion is working? I am able to understand that 10==11 will be 'false' and that's how rec_fn will be called again and again recursively. But what I am not able to get is this seemingly ...

Can someone please explain to me

.. the difference between the = and the == signs in Python? i.e provide examples when each is used so there's no confusion between the two? ...

beautifulsoup python parsing problem

Possible Duplicate: python beautifulsoup related problem hello All. i have some problem to extract some data from html source. following is sniffit of my html source code, and i want to extract string value in every following <td class="gamedate">10/12 00:59</b></td> <td class="gametype">오버언더</b></td> <td class="legue"...

python - nested try/except question

Hello, try: for i in list: try: #python code... cexcept Exception,e: #error handler except Exception,e: error handler If in the nested try/except it errors out, does the loop continue running? ...

How can fractional number expressions be parsed using pyparsing?

We've just started to kick the tires pyparsing and like it so far, but we've been unable to get it to help us parse fractional number strings to turn them into numeric data types. For example, if a column value in a database table contained the string: 1 1/2 We'd like some way to convert it into the numeric python equivalent: 1.5 We...

"Pythonic" multithreaded (Concurrent) language

Hi, I now primarily write in python, however I am looking for a language that is more thread friendly (not JAVA,C#,C or C++). Python's threads are good when they are IO bound but it's coming up short when I am doing something CPU intensive. Any ideas? Thanks, James ...

Please help me understand?

The question i'm working on asks "Given the variables name1 and name2 , write a fragment of code that assigns the larger of their associated values to first" ('first' in bold letters) (NOTE: "larger" here means alphabetically larger, not "longer". Thus, "mouse" is larger than "elephant" because "mouse" comes later in the dictionary ...

does textarea distinguish \r\n or \n?

i have a texaarea which put regular expression to match html,so it's senstive to \r\n & \n, and i don't know textarea how's doing with this, when i write a wring regular expression with muliple lines,put these string to the textarea,then send to the server process match procedure,it will not work,i think the main reason is \r\n \n symbo...

Is docs.python.org down?

I'm not sure if this is just me (or whether this is the appropriate section/question) but is anyone else finding docs.python.org and PyPi to be down? If so is there a newer version or a similar working site? Thanks, Fergus ...

Issue happens when installing Django on Windows 7

Hi, I've got an issue when installing Django. The official guide says open cmd with administrator privileges and run "setup.py install" I did this but then the system default python editor came out, I don't know how to do anymore, please help me~ ...

Question about python string

i have been asked to write a function which should be called in this way foo("Hello") This function also has to return values in this way: [Hello( user = 'me', answer = 'no', condition = 'good'), Hello( user = 'you', answer = 'yes', condition = 'bad'), ] the task has clearly asked to return string values. can anyone understand the...

Apache Can't Access Django Applications

so here's the setting: The whole site is working fine if I remove the application (whose name is myapp) in the INSTALLED_APPS section in the settings file I added WSGIPythonHome in apache2.conf I can successfully access the apps via the the interactive python shell in Django (python manage.py shell). I can create, update and delete...