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• List comprehension from multiple sources in Python?

  - by Noah

  Is it possible to replace the following with a list comprehension? res = [] for a, _, c in myList: for i in c: res.append((a, i)) For example: # Input myList = [("Foo", None, [1, 2, 3]), ("Bar", None, ["i", "j"])] # Output res = [("Foo", 1), ("Foo", 2), ("Foo", 3), ("Bar", "i"), ("Bar", "j")]

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• Tips for debugging list comprehensions?

  - by andylei

  Python list comprehensions are nice, but near impossible to debug. You guys have any good tips / tools for debugging them?

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• Generic socket 940 CPU fan interchangeable with HP part number 411454-001

  - by ConcernedOfTunbridgeWells

  Hi, I'm trying to find a generic CPU fan that will fit the air duct in an XW9300. Note that there are two CPU fan mounting schemes used on this machine. One with two grommets in the motherboard that the CPU fan screws into and one with a plastic collar and base plate. The form factor I'm looking for is the former (see picture below): Two HP…

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• Generic socket 940 CPU fan for HP XW9300 interchangeable with HP part number 411454-001

  - by ConcernedOfTunbridgeWells

  Hi, I'm trying to find a generic Socket 940 CPU fan that will fit the air duct in an XW9300. Note that two different CPU fan mounting schemes have been used on this machine. One has two grommets in the motherboard that the CPU fan screws into and the other has a plastic collar and base plate. The form factor I'm looking for is the former…

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• Generic Sample Terms and Conditions for a Website

  - by Tyler

  I want just a very simple and very generic terms and conditions sample to go off of, anyone have any links? Thanks SU

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• How do I process a nested list?

  - by ddbeck

  Suppose I have a bulleted list like this: * list item 1 * list item 2 (a parent) ** list item 3 (a child of list item 2) ** list item 4 (a child of list item 2 as well) *** list item 5 (a child of list item 4 and a grand-child of list item 2) * list item 6 I'd like to parse that into a nested list or some other data structure which makes the…

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• Ubuntu 12.04 updates fail recently - Please help

  - by user74152

  I upgraded Ubuntu 11.10 to 12.04 LTS immediately after its release (april 2012). Since then updates (new kernels and others) succeeded regularly, but recently, suddenly, updates fail consistently. What causes the problem and how can it be solved? Terminal information after the last update attempt: ariel@ariel-MS-7592:~$ sudo apt-get…

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• Implement a generic C++/CLI interface in a C# generic interface

  - by Florent

  I have a C++/CLI generic interface like this : using namespace System::Collections::Generic; namespace Test { generic <class T> public interface class IElementList { property List<T>^ Elements; }; } and I want to implement it in a C# generic interface like this : using Test; namespace U { public…

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• In plain English, what are Django generic views?

  - by allyourcode

  The first two paragraphs of this page explain that generic views are supposed to make my life easier, less monotonous, and make me more attractive to women (I made up that last one): http://docs.djangoproject.com/en/dev/topics/generic-views/#topics-generic-views I'm all for improving my life, but what do generic views actually do? It…

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• Dynamically creating a Generic Type at Runtime

  - by Rick Strahl

  I learned something new today. Not uncommon, but it's a core .NET runtime feature I simply did not know although I know I've run into this issue a few times and worked around it in other ways. Today there was no working around it and a few folks on Twitter pointed me in the right direction. The question I ran into is: How do I…

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• how to copy one linked list contents to another linked list

  - by Zeeshan Raja

  Hi, I have been given list L1, L2. L1 contains 1,2,3 and L2 contains 4,5,6. how do i copy the contents from L2 to the end of L1 so in the end L1 contains 1,2,3,4,5,6. any suggestions?

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• Linked list and doubly linked list examples

  - by Carl_1789

  I'm looking for a good understandable example in c++ with differences. Does the header file <list.h> provide both or should I look somewhere else?

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• Haskell Convert List to List of Tuples

  - by peterwkc

  Hello, i have a list like this ["peter","1000","michell","2000","kelly","3000"] and i would like to convert to [("peter",1000),("michell", 2000),("kelly",3000)] Please help. Thanks.

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• Haskell - function (that returns a list) on each element in a list

  - by Ben

  The assignment is to create a multiples function and I essentially want todo the following code: map (\t -> scanl (\x y -> x+y) t (repeat t)) listofnumbers The problem is that the scanl function returns a list of results rather than the one which the map function requires. So is there a function that will allow the…

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• Random List of numbers in C

  - by Ant

  I have just started a C programming course and so far have only done the basics like printf, read a little on variables etc on the course book. The teacher has tasked us with writing a program that will take a value entered by the user, this will be the number of students in the class (25 at the moment but can be variable).…

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• trying to append a list, but something breaks

  - by romunov

  I'm trying to create an empty list which will have as many elements as there are num.of.walkers. I then try to append, to each created element, a new sub-list (length of new sub-list corresponds to a value in a. When I fiddle around in R everything goes smooth: list.of.dist[[1]] <- vector("list", a[1]) list.of.dist[[2]]…

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• Using FindAll on a List<List<T>> type

  - by Ken Foster

  Assuming public class MyClass { public int ID {get; set; } public string Name {get; set; } } and List<MyClass> classList = //populate with MyClass instances of various IDs I can do List<MyClass> result = classList.FindAll(class => class.ID == 123); and that will give me a list of just classes…

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• Unique elements of list within list in python

  - by user2901061

  We are given a list of animals in different zoos and need to find which zoos have animals that are not in any others. The animals of each zoo are separated by spaces, and each zoo is originally separated by a comma. I am currently enumerating over all of the zoos to split each animal and create lists within lists for…

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• Optimizing list comprehension to find pairs of co-prime numbers

  - by user3685422

  Given A,B print the number of pairs (a,b) such that GCD(a,b)=1 and 1<=a<=A and 1<=b<=B. Here is my answer: return len([(x,y) for x in range(1,A+1) for y in range(1,B+1) if gcd(x,y) == 1]) My answer works fine for small ranges but takes enough time if the range is increased. such as 1 <= A <=…

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• Counting number of times an item occurs in a linked list

  - by HanaCHaN92

  Here is the assignment: Here's the assignment: Implement a method countValue() that counts the number of times an item occurs in a linked list. Remember to use the STL list. int countValue(list front, const int item); Generate 20 random numbers in the range of 0 to 4, and insert each number in the linked list.…

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• List of Countries in Excel Spreadsheet for Drop Down List

  - by Guy Harwood

  Attached to this post is an excel spreadsheet i use for populating drop down lists for choosing countries. Personally i prefer to have these in a table, and fill the drop down from there, but i have also included formatted markup for the list items that can be copied directly between the drop down list markup.

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• Best way to choose random element from weighted list

  - by Qqwy

  I want to create a simple game. Every so often, a power up should appear. Right now the different kinds of power ups are stored in an array. However, not every power up should appear equally often: For instance, a score multiplier should appear much more often than an extra life. What is the best/fastest way to…

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• some files just wont install- linux-image-3.5.0-42-generic

  - by jatin

  It gives the following details of the package operation failing after using the sofware updater on 12.10: installArchives() failed: perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "en_IN.ISO8859-1" are…

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• WCF: Serializing and Deserializing generic collections

  - by Fabiano

  I have a class Team that holds a generic list: [DataContract(Name = "TeamDTO", IsReference = true)] public class Team { [DataMember] private IList<Person> members = new List<Person>(); public Team() { Init(); } private void Init() { members = new…

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• How to check if a generic type definition inherits from another generic type definition

  - by Anne

  I'm trying to check whether an open generic type definition implements some open generic interface. Look at the sample below: public interface IService<T> { } public class ServiceImpl<T> : IService<T> { } private static bool OpenGenericTypeImplementsOpenGenericInterface( Type…

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