I have a ethenet access control device that is said to be able to communicate via TCP. How can i send a pachet by entering the HEX data, since this is what i have from their manual (a standard format for the communication packets sent and received after each command) Can you please show some example code or links to get started.... s...
The numpy.equal function does not work if a list or array contains strings: >>> import numpy >>> index = numpy.equal([1,2,'a'],None) Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: function not supported for these types, and can't coerce safely to supported types What is the easiest way to workaroun...
Is there a way that when a user types python setup.py install to install a Python package, setup.py can be made to set specific variables at the base of the pacakge? A common example would be to basically set mypackage.__revision__ to be the svn revision of the checkout if one is working from svn. Another example case would be if the ...
I have the following Python 2.6 program and YAML definition (using PyYAML): import yaml x = yaml.load( """ product: name : 'Product X' sku : 123 features : - size : '10x30cm' weight : '10kg' """ ) print type(x) print x Which result...
Hey, I have a list of numbers (integers) (say, from 1 to 10). They're not necessarily consecutive, but they are in ascending order. I've prompted the user multiple times to enter a choice of the available numbers. When that number is entered, it is removed from the list along with any of its factors that may be there. I've prevent...
I'm using ItemSearch in order to get a list of books ordered by 'salesrank' aka 'bestselling', problem is that the books that pop up for any BrowseNode are totally different from the Amazon list. Test Case Author:"J R R Tolkien", SearchIndex:"Books", Sort:"salesrank" Using the API: J.R.R. Tolkien Boxed Set (The Hobbit and The Lo...
I have very little experience working with sockets and multithreaded programming so to learn more I decided to see if I could hack together a little python socket server to power a chat room. I ended up getting it working pretty well but then I noticed my server's CPU usage spiked up over 100% when I had it running in the background. He...
I have a generator (numbers) and a value (number). I would like to iterate over these as if they were one sequence: i for i in tuple(my_generator) + (my_value,) The problem is, as far as I undestand, this creates 3 tuples only to immediately discard them and also copies items in "my_generator" once. Better approch would be: def con(...
I'm trying to set a function to do something like this def __binaryTreeInsert(self, toInsert, currentNode=getRoot(), parentNode=None): where current node starts as root, and then we change it to a different node in the method and recursivly call it again. However, i cannot get the 'currentNode=getRoot()' to work. If i try calling ...
I made an IRC bot which uses a while true loop to receive whatever is said. To receive I use recv(500), but that stops the loop if there isn't anything to receive, but i need the loop to continue even if there isn't anything to receive. I need a makeshift timer to continue running. Example code: /A lot of stuff/ timer=0 while 1: ti...
I want to convert PPT to png, or other image formats using Python. This question has been asked on SO, but essentially recommends running OpenOffice in headless X server, which was an absolute pain last time I used it. (Mostly due to hard to replicate bugs due to OO crashing.) Is there any other way, (Hopefully using Linux CLI utilitie...
I'm often having code written as follows try: self.title = item.title().content.string except AttributeError, e: self.title = None Is there a quicker way of dealing with this? a one-liner? ...
I found a lot of links on metaclasses, and most of them mention that they are useful for implementing factory methods. Can you show me an example of using metaclasses to implement the design pattern? ...
This works: >>> def bar(x, y): ... print x, y ... >>> bar(y=3, x=1) 1 3 And this works: >>> class Foo(object): ... def bar(self, x, y): ... print x, y ... >>> z = Foo() >>> z.bar(y=3, x=1) 1 3 And even this works: >>> Foo.bar(z, y=3, x=1) 1 3 But why doesn't this work? >>> Foo.bar(self=z, y=3, x=1) Traceback...
I got some problems with EOF and stdio in a communication pipeline between a python process and a C++ program. I have no idea what I am doing wrong. When I see an EOF in my program I clear the stdin and next round I try to read in a new line. The problem is: for some reason the getline function immediatly (from the second run always, the...
Hi there, I have to VPN and then ssh from home to my work server and want to run a python script in the background, then log out of the ssh session. My script makes several histogram plots using matplotlib, and as long as I keep the connection open everything is fine, but if I log out I keep getting an error message in the log file I cre...
I ordered three books to start teaching myself Python - a beginning programming book, a computer science book that uses Python for all of its code references, and a book on Python network programming. Unfortunately, I was a little too quick on ordering them, because I hadn't noticed the version differences. The beginner book is for pytho...
Hello, is their any way to make this work, without sacrificing the cdef in cdef caller? (no use of cpdef either) from array import * from numpy import * cdef class Agents: cdef public caller(self): print "caller" A[1].called() cdef called(self): print "called" A = [Agents() for i in range(2)] def mai...
Whitespace Assembler #! /usr/bin/env python """Assembler.py Compiles a program from "Assembly" folder into "Program" folder. Can be executed directly by double-click or on the command line. Give name of *.WSA file without extension (example: stack_calc).""" ##############################################################################...
I am writing a console application in python that will consist of a handful of modules, each with a couple hundred lines of code. For development it would be nice to modularize the program, but for distribution I like the idea of being able to post the program as a single python script. Are there any good scripts out there for flatteni...