a general tree implementation in python
i want to build a general tree in which a root node contains 'n' childrens and those childrens may contain other childrens..... ...
python-3.x
Python mistaking float for string
I receive TypeError: Can't convert 'float' object to str implicitly while using Gambler.pot += round(self.bet + self.money * 0.1) where pot, bet, and money are all doubles (or at least are supposed to be). I'm not sure if this is yet another Eclipse thing, but how do I get the line to compile? Code where bet and money are initiali...
Will python 3 ever catch on?
I have been learning a bit of Python 2 and Python 3 and it seems like Python 2 is over all better than Python 3. So that's where my question comes in. Are there any good reasons to actually switch over to python 3? ...
how to do asynchronous http requests with epoll and python 3.1
there is an interesting page http://scotdoyle.com/python-epoll-howto.html about how to do asnchronous / non-blocking / AIO http serving in python 3. there is the tornado web server which does include a non-blocking http client. i have managed to port parts of the server to python 3.1, but the implementation of the client requires pyCur...
Python 3.1.1 for OS X FSEvents
Hi all, Am working on file / folder event capturing of OS X 10.5 and 10.6 versions. My application is developed using Python 3.1.1. Donno whether FSEvents are supported by Python 3.1.1. If FSEvents are not supported by Python 3.x, is there any other way to do this using Python 3.x? regards, Kingsley Reuben ...
Writing Strings to files in python
I'm getting the following error when trying to write a string to a file in pythion: Traceback (most recent call last): File "export_off.py", line 264, in execute save_off(self.properties.path, context) File "export_off.py", line 244, in save_off primary.write(file) File "export_off.py", line 181, in write variable.writ...
How to make Python Extensions for Windows for absolute beginners
Hello: I've been looking around the internet trying to find a good step by step guide to extend Python in Windows, and I haven't been able to find something for my skill level. let's say you have some c code that looks like this: #include <stdio.h> #include <math.h> double valuex(float value, double rate, double timex) { float v...
Best library to parse HTML with Python 3 and example?
I'm new to Python completely and am using Python 3.1 on Windows (pywin). I need to parse some HTML, to essentially extra values between specific HTML tags and am confused at my array of options, and everything I find is suited for Python 2.x. I've read raves about Beautiful Soup, HTML5Lib and lxml, but I cannot figure out how to install ...
Dictionary methods no longer return lists
In python 2, keys(), values() and items() returned lists. But in Python 3, they are dynamic views and to get these dynamic views to be lists, use the list() function to convert. Ok, I get that but what the heck is a dynamic view? What is it used for? When I google dynamic views, all I get are web frame work type results. Nothing relate...
FancyURLOpener failing since moving to python 3.1.2
I had an application that was downloading a .CSV file from a password-protected website then processing it futher. I was using FancyURLOpener, and simply hardcoding the username and password. (Obviously, security is not a high priority in this particular instance). Since downloading Python 3.1.2, this code has stopped working. After fi...
Python 3 with the range function
I can type in the following code in the terminal, and it works: for i in range(5): print(i) And it will print: 0 1 2 3 4 as expected. However, I tried to write a script that does a similar thing: print(current_chunk.data) read_chunk(file, current_chunk) numVerts, numFaces, numEdges = current_chunk.data print(current_chunk.da...
Replace a whole line in a txt file
I'am new to Python 3 and could really use a little help. I have a txt file containing: InstallPrompt= DisplayLicense= FinishMessage= TargetName=D:\somewhere FriendlyName=something I have a python script that in the end, should change just two lines to: TargetName=D:\new FriendlyName=Big Could anyone help me, please? I have tri...
Why eclipse + pydev print() output look strange with two strings?
hay all, I just did the following: a = input("give a word: ") b = input("give another word: ") c = a + " " + b print("result is", c) and get the output as follows: give a word: name give another word: word result is name word my question is why the output on pydev or eclipse console in two lines? i expected to output as follows: ...
How should I do custom sort in Python 3?
In Python 2.x, I could pass custom function to sorted and .sort functions >>> x=['kar','htar','har','ar'] >>> >>> sorted(x) ['ar', 'har', 'htar', 'kar'] >>> >>> sorted(x,cmp=customsort) ['kar', 'htar', 'har', 'ar'] Because, in My language, consonents are comes with this order "k","kh",....,"ht",..."h",...,"a" But In Python 3.x, lo...
Python3 - Deleting dirs after finishing a commando prompt
I have a python script that ends with running a program (iexpress.exe) in a dos prompt. The program that runs in dos prompt, uses a dir called workdir. After the program has finished in the dos prompt I would like python to delete the dir. I have just made a simple solution of putting a delay of 30sec: time.sleep(30) removeall(workdir)...
Python 3: receive user input including newline characters
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 reading. Is there a way I could read in them all with...
How can get Python isidentifer() functionality in Python 2.6?
Python 3 has a string method called str.isidentifier How can I get similar functionality in Python 2.6, short of rewriting my own regex, etc.? ...
I want all three shapes on the same line...please help...!!!!
#Top half of triangle for rows in range (5): for row in range (12): print("-", end='') print() for row in range (5): stars=0 while stars<=row: print("*", end='') stars=stars+1 print() for row in range(5): star=4 while star>=row: print("*", end='') ...
Python -- what is NOT in 2.7 that IS in 3.1? So many things have been back-ported, what is NOT?
I've been following the saga of Python 3.x and have watched the 3.x features gradually getting back-ported to the 2.x line. Most of the libraries I use haven't been ported and some (e.g. Twisted) seem covertly or overtly hostile to 3.x to varying degrees. At any rate, there has been very little movement towards compatible versions of...
What is the best interface from Python 3.1.1 to R?
I am using Python 3.1.1 on Mac OS X 10.6.2 and need an interface to R. When browsing the internet I found out about RPy. Is this the right choice? Currently, a program in Python computes a distance matrix and, stores it in a file. I invoke R separately in an interactive way and read in the matrix for cluster analysis. In order to simpl...