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python Programming Glossary: listshttp://stackoverflow.com/questions/13058458/python-list-index problem is caused by the fact that python chooses to pass lists around by reference. Normally variables are passed by value.. they operate independently a 1 b a a 2 print b 1 But since lists might get pretty large rather than shifting the whole list around..
Flatten (an irregular) list of lists in Python http://stackoverflow.com/questions/2158395/flatten-an-irregular-list-of-lists-in-python an irregular list of lists in Python Yes I know this subject has been covered before here..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained 1 4 Everything you can use for... in... on is an iterable lists strings files... These iterables are handy because you can read.. not. Python expects iterables so it will work with strings lists tuples and generators This is called duck typing and is one..
Unexpected feature in a Python list of lists http://stackoverflow.com/questions/240178/unexpected-feature-in-a-python-list-of-lists feature in a Python list of lists I needed to create a list of lists in Python so I typed the.. in a Python list of lists I needed to create a list of lists in Python so I typed the following myList 1 4 3 The list looked..
How do you split a list into evenly sized chunks in Python? http://stackoverflow.com/questions/312443/how-do-you-split-a-list-into-evenly-sized-chunks-in-python obvious ways to do this like keeping a counter and two lists and when the second list fills up add it to the first list and.. I was wondering if anyone had a good solution to this for lists of any length e.g. using generators. This should work l range..
*args and **kwargs? [duplicate] http://stackoverflow.com/questions/3394835/args-and-kwargs I can't get an understanding of it. Maybe I think to enter lists and dictionaries as arguments of a function AND at the same..
What does ** (double star) and * (star) do for python parameters? http://stackoverflow.com/questions/36901/what-does-double-star-and-star-do-for-python-parameters pass An other usage of the l idiom is to unpack argument lists when calling a function. In 9 def foo bar lee ... print bar..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python proposed solution because you throw away the temporary lists you create when you extend the original with the temporary...
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code linear search and when you're doing linear searches on lists it can add up fast. What you can do is convert closedlist into.. items so the in operator is much more efficient than for lists. However lists aren't hashable items so you will have to change.. in operator is much more efficient than for lists. However lists aren't hashable items so you will have to change your configurations..
Python: Sort a dictionary by value http://stackoverflow.com/questions/613183/python-sort-a-dictionary-by-value Dicts are inherently orderless but other types such as lists and tuples are not. So you need a sorted representation which..
What's the difference between list and tuples in Python? http://stackoverflow.com/questions/626759/whats-the-difference-between-list-and-tuples-in-python difference What are the advantages disadvantages of tuples lists python list tuples share improve this question Apart from.. i.e. their entries have different meanings while lists are homogeneous sequences. Tuples have structure lists have.. lists are homogeneous sequences. Tuples have structure lists have order. Using this distinction makes code more explicit..
Making a flat list out of list of lists in Python [duplicate] http://stackoverflow.com/questions/952914/making-a-flat-list-out-of-list-of-lists-in-python a flat list out of list of lists in Python duplicate Possible Duplicates Flattening a shallow.. there is a shortcut to make a simple list out of list of lists in Python. I can do that in a for loop but maybe there is some.. use in sum are of necessity O L 2 when there are L sublists as the intermediate result list keeps getting longer at each..
Understanding Python's call-by-object style of passing function arguments http://stackoverflow.com/questions/10262920/understanding-pythons-call-by-object-style-of-passing-function-arguments to me. In Python there are things and there are names . Lists integers strings and custom objects are all things. x y and..
Name this python/ruby language construct (using array values to satisfy function parameters) http://stackoverflow.com/questions/1141504/name-this-python-ruby-language-construct-using-array-values-to-satisfy-function question The Python docs call this Unpacking Argument Lists . It's a pretty handy feature. In Python you can also use a..
Python - Using the Multiply Operator to Create Copies of Objects in Lists http://stackoverflow.com/questions/1605024/python-using-the-multiply-operator-to-create-copies-of-objects-in-lists Using the Multiply Operator to Create Copies of Objects in Lists In Python if I multiply of list of objects by an integer I..
Python List vs. Array - when to use? http://stackoverflow.com/questions/176011/python-list-vs-array-when-to-use use the 'array' module in the STDLIB. I have always used Lists for 1d arrays. What is the reason or circumstance where I would..
Finding the index of an item given a list containing it in Python http://stackoverflow.com/questions/176918/finding-the-index-of-an-item-given-a-list-containing-it-in-python
http://stackoverflow.com/questions/1959744/python-list-problem section List creation shortcuts on the Python Programming Lists wikibook which goes into detail on the issues with list references..
CPython - Internally, what is stored on the stack and heap? http://stackoverflow.com/questions/2353552/cpython-internally-what-is-stored-on-the-stack-and-heap else however is stored on the heap. This includes Lists objects etc. I was wondering does CPython do the same thing..
Why does x,y = zip(*zip(a,b)) work in Python? http://stackoverflow.com/questions/2511300/why-does-x-y-zipzipa-b-work-in-python
What is the fastest (to access) struct-like object in Python? http://stackoverflow.com/questions/2646157/what-is-the-fastest-to-access-struct-like-object-in-python object to be sequence like hence my choice of namedtuple. Lists are substantially faster but constant keys are unmaintainable..
Python 2D list has weird behavor when trying to modify a single value [duplicate] http://stackoverflow.com/questions/2739552/python-2d-list-has-weird-behavor-when-trying-to-modify-a-single-value new to Python and I am having trouble working with 2D Lists. Here's my code data None 5 5 data 0 0 'Cell A1' print data..
http://stackoverflow.com/questions/2831212/python-sets-vs-lists Sets vs Lists In Python which data structure is more efficient speedy Assuming..
Python: Once and for all. What does the Star operator mean in Python? [duplicate] http://stackoverflow.com/questions/2921847/python-once-and-for-all-what-does-the-star-operator-mean-in-python s sum 1 2 10 15 Also see section 4.7.4 Unpacking Argument Lists of the Python documentation. Additionally you can define functions..
http://stackoverflow.com/questions/335695/lists-in-configparser in ConfigParser The typical ConfigParser generated file looks..
sorted() using Generator Expressions Rather Than Lists http://stackoverflow.com/questions/4154571/sorted-using-generator-expressions-rather-than-lists using Generator Expressions Rather Than Lists After seeing the discussion here Python generate the time difference..
Amazon Book API for Python or Ruby? [duplicate] http://stackoverflow.com/questions/4589813/amazon-book-api-for-python-or-ruby features such as Customer Reviews Similar Products Wish Lists and New and Used listings. http pypi.python.org pypi python..
List Manipulation with pop(), Python http://stackoverflow.com/questions/5162991/list-manipulation-with-pop-python that you don't want lazily with no up front cost . Lists not so large Just use a list comprehension newlist x for x in..
What's the difference between list and tuples in Python? http://stackoverflow.com/questions/626759/whats-the-difference-between-list-and-tuples-in-python on this issue e.g. Python Tuples are Not Just Constant Lists or Understanding tuples vs. lists in Python . The official Python..
http://stackoverflow.com/questions/6319207/are-lists-thread-safe 3.x python multithreading share improve this question Lists themselves are thread safe. In CPython the GIL protects against..
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