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• Why does socket.inet_ntoa returns packed format in python

  - by sleepy

  Why does socket.inet_aton returns packed format in python? If I am storing the IP as integer in Database (mysql), do I have to always extract the integer value or is there any easier way out?

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• Determine precision and scale of particular number in Python

  - by jrdioko

  I have a variable in Python containing a floating point number (e.g. num = 24654.123), and I'd like to determine the number's precision and scale values (in the Oracle sense), so 123.45678 should give me (8,5), 12.76 should give me (4,2), etc. I was first thinking about using the string representation (via str or repr), but those fail for large numbers: >>> num = 1234567890.0987654321 >>> str(num) = 1234567890.1 >>> repr(num) = 1234567890.0987654

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• Python - Launch a Long Running Process from a Web App

  - by Greg

  I have a python web application that needs to launch a long running process. The catch is I don't want it to wait around for the process to finish. Just launch and finish. I'm running on windows XP, and the web app is running under IIS (if that matters). So far I tried popen but that didn't seem to work.

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• how to get internet explorer address bar for python

  - by john misoskian

  hi; i need grab to internet explorer address bar. how to get address bar url for python ? (i need second part other browsers grabbing address bar but internet explorer is urgently). Thanks.

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• Start app from within python

  - by Aaron Hoffman

  Hello, I'm trying to start an application using Python. I've seen that some people use startfile but I also read that it only works with Windows. I'm using Mac systems and hoping for it to work with them. Thanks, Aaron

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• Python style: multiple-line conditions in IFs

  - by Eli Bendersky

  Hello, Sometimes I break long conditions in IFs to several lines. The most obvious way to do this is: if (cond1 == 'val1' and cond2 == 'val2' and cond3 == 'val3' and cond4 == 'val4'): do_something Isn't very very appealing visually, because the action blends with the conditions. However, it is the natural way using correct Python indentation of 4 spaces. Edit: By the way, for the moment I'm using: if ( cond1 == 'val1' and cond2 == 'val2' and cond3 == 'val3' and cond4 == 'val4'): do_something Not very pretty, I know :-) Can you recommend an alternative way ?

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• Problem with list slice syntax in python

  - by Dingle

  The extended indexing syntax is mentioned in python's doc. slice([start], stop[, step]) Slice objects are also generated when extended indexing syntax is used. For example: a[start:stop:step] or a[start:stop, i]. See itertools.islice() for an alternate version that returns an iterator. a[start:stop:step] works as described. But what about the second one? How is it used?

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• Print one word from a string in python

  - by Shai

  Hi, How can i print only certain words from a string in python ? lets say i want to print only the 3rd word (which is a number) and the 10th one while the text length may be different each time mystring = "You have 15 new messages and the size is 32000" thanks.

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• Python: sort a list and change another one consequently

  - by terabytest

  I have two lists: one contains a set of x points, the other contains y points. Python somehow manages to mix the x points up, or the user could. I'd need to sort them by lowest to highest, and move the y points to follow their x correspondants. They are in two separate lists.. how do I do it?

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• Python tkInter text entry validation

  - by meade

  I'm trying to validate the entry of text using Python/tkInter def validate_text(): return False text = Entry(textframe, validate="focusout", validatecommand=validate_text) where validate_text is the function - I've tried always returning False and always returning True and there's no difference in the outcome..? Is there a set of arguments in the function that I need to include? Edit - changed from NONE to focusout...still not working

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• python command line yes/no input

  - by h3

  Is there any short way to achieve what APT does in Python ? I mean, when the package manager prompts a yes/no question followed by "[Yes/no]". The scripts accepts YES/Y/yes/y or "enter" (defaults to Yes as hinted by the capital) The only thing I find in the official doc is input/raw_input.. I know it's not that hard to emulate, but it's annoying to rewrite :|

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• Proper indentation for Python multiline strings

  - by ensnare

  What is the proper indentation for Python multiline strings within a function? def method: string = """line one line two line three""" or def method: string = """line one line two line three""" or something else? It looks kind of weird to have the string hanging outside the function in the first example. Thanks.

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• Run a python process in a separate thread

  - by Bialecki

  I'm looking for a quick bash script or program that will allow me to kick off a python script in a separate thread. What's the best way to do this? I know this is incredibly simple, just curious if there's a preferred way to do it.

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• Abstract attributes in Python

  - by deamon

  What is the shortest / most elegant way to implement the following Scala code with an abstract attribute in Python? abstract class Controller { val path: String } A subclass of Controller is enforced to define "path" by the Scala compiler. A subclass would look like this: class MyController extends Controller { override val path = "/home" }

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• python django automated data addition

  - by zubin71

  I have a script which reads data from a csv file. I need to store the data into a database which has already been created as $ python manage.py syncdb so, that automated data entry is possible in an easier manner, as available in the django shell.

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• symbols in command line argument.. python, bash

  - by Idlecool

  Hi, I am writing a python script on Linux for twitter post using API, Is it possible to pass symbols like "(" ")" etc in clear text without apostrophes.... % ./twitterupdate this is me #works fine % ./twitterupdate this is bad :(( #this leaves a error on bash. Is the only alternative is to enclose the text into -- "" ?? like.. % ./twitterupdate "this is bad :((" #this will reduce the ease of use for the script Is there any workaround?

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• in Python find number of same elements in 2 lists

  - by John

  Hi, In Python if I have 2 lists say: l1 = ['a', 'b', 'c', 'd'] l2 = ['c', 'd', 'e'] is there a way to find out how many elements they have the same. In the case about it would be 2 (c and d) I know I could just do a nested loop but is there not a built in function like in php with the array_intersect function Thanks

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• Web application performance: PHP or Python?

  - by Michael

  Which technology is better to use in terms of performance for high performance scalable web application? PHP or Python? The project is going to involve database.

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• Are C style macros available in Python?

  - by Dragos Toader

  In C there's a way to #define macros: #define OBJWITHSIZE(_x) (sizeof _x)/(sizeof _x[0]) Is there a way to do this in Python?

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• Run python in a separate process

  - by Bialecki

  I'm looking for a quick bash script or program that will allow me to kick off a python script in a separate process. What's the best way to do this? I know this is incredibly simple, just curious if there's a preferred way to do it.

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• Backup of folder + database - Python

  - by RadiantHex

  Hi there, I feel like this is quite delicate, I have various folders whith projects I would like to backup into a zip/tar file, but would like to avoid backing up files such as pyc files and temporary files. I also have a Postgres db I need to backup. Any tips for running this operation as a python script? Also, would there be anyway to stop the process from hogging resources in the process? Help would be very much appreciated.

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• What's the logical value of "string" in python?

  - by Kamran

  I erroneously wrote this code in python: name = input("what is your name?") if name == "Kamran" or "Samaneh": print("That is a nice name") else: print("You have a boring name ;)") It always prints out "That is a nice name" even when the input is neither "Kamran" nor "Samaneh". Am I correct in saying that it considers "Samaneh" as a true? why? By the way, I already noticed my mistake. The correct form is: if name == "Kamran" or name == "Samaneh":

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• Inverting image using the Python Image Library module

  - by Gresham

  Good day chaps. I'm interested in learning how to invert (make a negative of) an image using the python image libary module. I cannot however, use the ImageOps function 'invert.' I need another solution, using the RGB values. I've searched and tried to no avail. Thanks for any help :)

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• why is there {Raw,Safe,}Configparser in Python 3

  - by Tshepang

  Am surprised there's 3 different forms: RawConfigParser, SafeConfigParser and ConfigParser. I read the differences but why isn't everyone using SafeConfigParser, since it seems, well, safe? I can understand that in the case for Python 2 that the other two were kept for backward compatibility.

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• Automatically Generate a FlowChart in Python

  - by fayce

  Dear All, I would like to automatically generate a flowchart similar to this one ( http://en.wikipedia.org/wiki/File:%281%29_2008-04-07_Information_Management-_Help_Desk.jpg ) with Python. Do you have any advice regarding the library I should use to draw boxes, arrows (with the shortest path), text and some colors. Many thanks in advance !

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