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python Programming Glossary: implementationWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python in pure Python and is done by cheating a little bit at the implementation level. Secondly metaclasses are complicated. You may not want..
Is there a difference between `==` and `is` in python? http://stackoverflow.com/questions/132988/is-there-a-difference-between-and-is-in-python because Python caches small integer objects which is an implementation detail. For larger integers this does not work 1000 is 10 3..
Difference between __str__ and __repr__ in Python http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python me reiterate the main points in Alex ™s post The default implementation is useless it ™s hard to think of one which wouldn ™t be but yeah.. ™s __str__ uses contained objects __repr__ Default implementation is useless This is mostly a surprise because Python ™s defaults.. or r formatting character equivalently inside __repr__ implementation or you ™re defeating the goal of repr. You want to be able to..
Fastest way to list all primes below N in python http://stackoverflow.com/questions/2068372/fastest-way-to-list-all-primes-below-n-in-python sources all primes below 1 million Sundaram's Sieve implementation by myself 327ms Daniel's Sieve 435ms Alex's recipe from Cookbok.. of Python. Below is a script which compares a number of implementations ambi_sieve_plain rwh_primes rwh_primes1 rwh_primes2 sieveOfAtkin..
Is False == 0 and True == 1 in Python an implementation detail or is it guaranteed by the language? http://stackoverflow.com/questions/2764017/is-false-0-and-true-1-in-python-an-implementation-detail-or-is-it-guarante False 0 and True 1 in Python an implementation detail or is it guaranteed by the language Is it guaranteed.. int . The question can therefore be recast as Is this an implementation detail that might change in the future or does the documentation.. for writing robust code that won't fail because of implementation details python boolean share improve this question In Python..
What are “named tuples” in Python? http://stackoverflow.com/questions/2970608/what-are-named-tuples-in-python Python 2.6 and Python 3.0 although there is a recipe for implementation in Python 2.4 . For example it is common to represent a point..
Python “is” operator behaves unexpectedly with integers http://stackoverflow.com/questions/306313/python-is-operator-behaves-unexpectedly-with-integers documentation 7.2.1 Plain Integer Objects The current implementation keeps an array of integer objects for all integers between 5..
Suggestions for a Cron like scheduler in Python? http://stackoverflow.com/questions/373335/suggestions-for-a-cron-like-scheduler-in-python time timezones to be wary of though . Here's a quick implementation class CronTab object def __init__ self events self.events events..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code an parallel list around for your results. I tried a simple implementation of this including aaronasterling's namedtuple trick and it performed..
Simple Prime Generator in Python http://stackoverflow.com/questions/567222/simple-prime-generator-in-python as others have suggested. Here's a nice optimized implementation with many comments # Sieve of Eratosthenes # Code by David Eppstein..
Python @property versus getters and setters http://stackoverflow.com/questions/6618002/python-property-versus-getters-and-setters or two is just a warning that the given attribute is an implementation detail that may not stay the same in future versions of the..
Python's use of __new__ and __init__? http://stackoverflow.com/questions/674304/pythons-use-of-new-and-init this functionality otherwise apart from putting the implementation into the __new__ which feels quite hacky . Here's an example..
Why do you need explicitly have the “self” argument into a Python method? http://stackoverflow.com/questions/68282/why-do-you-need-explicitly-have-the-self-argument-into-a-python-method language design decision in Python or are there some implementation details that require the passing of self as an argument python.. since nothing is implied or assumed parts of the implementation are exposed. self.__class__ self.__dict__ and other internal..
What are the differences between json and simplejson Python modules? http://stackoverflow.com/questions/712791/what-are-the-differences-between-json-and-simplejson-python-modules modules. What are the advantages of simplejson and which implementation is good Why not just use the standard json module python json..
http://stackoverflow.com/questions/8692/how-to-use-xpath-in-python to use xpath in Python Is there a full implementation How is the library used where is its website python xml xpath.. Speed. This is really a python wrapper around a C implementation. Ubiquity. The libxml2 library is pervasive and thus well tested...
Accessing object memory address http://stackoverflow.com/questions/121396/accessing-object-memory-address with non overlapping lifetimes may have the same id value. Implementation note this is the address of the object. So in CPython this will..
How to set up and solve simultaneous equations in python http://stackoverflow.com/questions/14367331/how-to-set-up-and-solve-simultaneous-equations-in-python above but has been implemented in the code below Implementation using numpy import numpy as np import numpy.linalg as linalg..
Python Homework - creating a new list http://stackoverflow.com/questions/15279678/python-homework-creating-a-new-list myList def get_even_elements myList pass # Implementation this method here. def get_negative_elements myList pass # Implementation.. this method here. def get_negative_elements myList pass # Implementation this method here. # Test it out alist 1 2 8 5 print splitlist..
Python model inheritance and order of model declaration http://stackoverflow.com/questions/16907186/python-model-inheritance-and-order-of-model-declaration danger of this approach as a lookup becomes a creation. Implementation Namespaces in Python are dictionaries I believe and dictionaries..
How to create a generator/iterator with the Python C API? http://stackoverflow.com/questions/1815812/how-to-create-a-generator-iterator-with-the-python-c-api spam_MyIter_iter PyObject self Py_INCREF self return self Implementation of our iteration next method. PyObject spam_MyIter_iternext..
Can python send text to the Mac clipboard http://stackoverflow.com/questions/1825692/can-python-send-text-to-the-mac-clipboard improve this question New answer This page suggests Implementation for All Mac OS X Versions The other Mac module MacSharedClipboard.py..
split a generator/iterable every n items in python (splitEvery) http://stackoverflow.com/questions/1915170/split-a-generator-iterable-every-n-items-in-python-splitevery 10 assert list splitEvery 5 tmp 0 1 2 3 4 5 6 7 8 Current Implementation Here is the code I currently have but it doesn't work with a..
Design pattern used in projects http://stackoverflow.com/questions/5039196/design-pattern-used-in-projects used in various projects and how it is implemented. Implementation is helpful to connect the design pattern in broader picture..
How to parallelize list-comprehension calculations in Python? http://stackoverflow.com/questions/5236364/how-to-parallelize-list-comprehension-calculations-in-python parallel. My question is Is there any Python Module Python Implementation Python Programming Trick to parallelize a list comprehension..
What is the best way to implement nested dictionaries in Python? http://stackoverflow.com/questions/635483/what-is-the-best-way-to-implement-nested-dictionaries-in-python share improve this question class AutoVivification dict Implementation of perl's autovivification feature. def __getitem__ self item..
Tornado(python) login Examples/Tutorials http://stackoverflow.com/questions/6514783/tornadopython-login-examples-tutorials username and password hash in the database users table. # Implementation left as an exercise for the reader. auth self.db.authenticate..
What's the best way to initialize a dict of dicts in Python? [duplicate] http://stackoverflow.com/questions/651794/whats-the-best-way-to-initialize-a-dict-of-dicts-in-python share improve this question class AutoVivification dict Implementation of perl's autovivification feature. def __getitem__ self item..
How to change behavior of dict() for an instance http://stackoverflow.com/questions/6780952/how-to-change-behavior-of-dict-for-an-instance . Props to @nosklo for this. class RecursiveDict dict Implementation of perl's autovivification feature. def __getitem__ self item.. Requires Python 2.5 class RecursiveDict dict Implementation of perl's autovivification feature. def __missing__ self key..
Quine-McCluskey algorithm in Python http://stackoverflow.com/questions/7537125/quine-mccluskey-algorithm-in-python are these interesting relatively to your project Python Implementation by Robert Dick Wouldn't this fulfil your need A series of two..
Whats the difference between Python decorators and Decorator Pattern? http://stackoverflow.com/questions/8328824/whats-the-difference-between-python-decorators-and-decorator-pattern answer as accepted because it helped me understand Implementation of Decorator Pattern in Python . Testing Python decorators against..
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python line file on a fast disk. Here's the complete table now Implementation Lines per second cin default 819 672 python 3 571 428 cin no..
How to implement Priority Queues in Python? http://stackoverflow.com/questions/9969236/how-to-implement-priority-queues-in-python question but Python docs are confusing.. . Link 1 Queue Implementation http docs.python.org library queue.html It says thats Queue.. it. class Queue.PriorityQueue maxsize 0 Link 2 Heap Implementation http docs.python.org library heapq.html Here they says that..
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