the code below is how i implement singleton with metaclass, and it works well class Test_MetaClass(type):
I\'m trying to build a markov generator that takes an arbitrary length for the chain of words as a programming exercise, but开发者_运维技巧 I\'ve found a bug I just can\'t quite seem to fix.When I run
import math,sys,time;i=0 while 1: sys.stdout.write(\"\\r\"+\':(__)\'[:3+int(round(math.sin(i)))]+\'n\'+\':(__)\'[3+int(round(math.sin(i))):]);sys.stdout.flush();time.sleep(.15);i+=0.5*math.p
I\'m implementing a simple class to represent a 2D vector. Here\'s are the relevant bits: class Vector:
My boss keeps getting annoyed at me for having Windows line breaks in my Python scripts, but I can\'t for the life of me work out how they are causing him a problem.
Python 2.7 has introduced a new API f开发者_JS百科or buffers and memoryview objects. I read the documentation on them and I think I got the basic concept (accessing the internal data of an object in
Is it possible to get the class name within the body of a class definition? For example, class Foo(): x = magic() # x should now be \'Foo\'
This question already has answers here: How to determine the encoding of text 开发者_如何学C (16 answers)
So I have a python script that I\'d prefer worked on python 3.2 a开发者_运维知识库nd 2.7 just for convenience.
I am using python nose to run a bunch of doctests in subdirectories. The calling script is nose.cmd: nosetests --with-doctest --doctest-extension=rst
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