Map two lists into a dictionary in Python

Map two lists into a dictionary in Python

Imagine that you have:keys = ('name', 'age', 'food')values = ('Monty', 42, 'spam')What is the simplest way to produce the following dictionary ?a_dict = {'name' : 'Monty', 'age' : 42, 'food' : 'spam'}This code works, but I'm not reall

Loading/Downloading image from URL on Swift

Loading/Downloading image from URL on Swift

I'd like to load an image from a URL in my application, so I first tried with Objective-C and it worked, however, with Swift, I've a compilation error: 'imageWithData' is unavailable: use object construction 'UIImage(data:)'My function: @

How to force NSLocalizedString to use a specific language

How to force NSLocalizedString to use a specific language

On iPhone NSLocalizedString returns the string in the language of the iPhone.Is it possible to force NSLocalizedString to use a specific language to have the appin a different language than the device ? 1:NSLocalizedString() (and variant

Why does an overridden function in the derived class hide other overloads of the base class?

Why does an overridden function in the derived class hide other overloads of the base class?

Consider the code : #include class Base {public: virtual void gogo(int a){ printf(" Base :: gogo (int) \n"); }; virtual void gogo(int* a){ printf(" Base :: gogo (int*) \n"); };};class Derived : public Bas

What are forward declarations in C++?

What are forward declarations in C++?

At: http://www.learncpp.com/cpp-tutorial/19-header-files/The following is mentioned:add.cpp:int add(int x, int y){ return x + y;}main.cpp:#include int add(int x, int y); // forward declaration using function prototypeint main()

What does the exclamation mark do before the function?

What does the exclamation mark do before the function?

!function () {}(); 1:JavaScript syntax 101. Here is a function declaration:function foo() {}Note that there's no semicolon: this is just a function declaration. You would need an invocation, foo(), to actually run the function.Now, when

What does the “yield” keyword do?

What does the “yield” keyword do?

What is the use of the yield keyword in Python? What does it do?For example, I'm trying to understand this code1:def _get_child_candidates(self, distance, min_dist, max_dist): if self._leftchild and distance - max_dist < self._median:

.NET: Best way to execute a lambda on UI thread after a delay?

.NET: Best way to execute a lambda on UI thread after a delay?

I had a situation come up that required running a lambda expression on the UI thread after a delay. I thought of several ways to do this and finally settled on this approachTask.Factory.StartNew(() => Thread.Sleep(1000)) .ContinueWith((t

Record/Capture Android App Behavior - Convert To Animated GIF

Record/Capture Android App Behavior - Convert To Animated GIF

I would like to capture/record the behavior of my Android app, running on an emulator and make a GIF image out it. Just like this one - 1:First record video from AndroidStudio Select "Screen Record" and save .mp4 video then go to any on

Splitting filenames using system file separator symbol

Splitting filenames using system file separator symbol

I have a complete file path and I want to get the file name.I am using the following instruction:String[] splittedFileName = fileName.split(System.getProperty("file.separator"));String simpleFileName = splittedFileName[splittedFileName.leng

Are there any built in auto-complete input components for Polymer 1.0? [closed]

Are there any built in auto-complete input components for Polymer 1.0? [closed]

I've been muddling around with Polymer 1.0 since its release, and I've hit a use case where a select list just won't be sufficient (too many options to select from). What I really need is an autocomplete textbox.Is there one built-in or pl

Redux - How to add entry to array in reducer

Redux - How to add entry to array in reducer

I stuck with this bit and I can't progress - I guess solution is simple but I can't figure out. I'm trying to add entry in reducer so data in in would look something this:state = { entryId: { entryName: ["something", "something2", "some

Insert text into WPF textbox at caret position

Insert text into WPF textbox at caret position

How can I insert text into a WPF textbox at caret position? What am I missing? In Win32 you could use CEdit::ReplaceSel().It should work as if the Paste() command was invoked. But I want to avoid using the clipboard. 1:To simply insert t

How to avoid error “aggregate functions are not allowed in WHERE”

How to avoid error “aggregate functions are not allowed in WHERE”

This sql code throws an aggregate functions are not allowed in WHERESELECT o.ID , count(p.CAT)FROM Orders oINNER JOIN Products p ON o.P_ID = p.P_ID WHERE count(p.CAT) > 3GROUP BY o.ID;How can I avoid this error? 1:Replace WHERE clause

React onClick and preventDefault() link refresh/redirect?

React onClick and preventDefault() link refresh/redirect?

I'm rendering a link with react:render: -> `upvote`Then, above I have the upvote function:upvote: -> // do stuff (ajax)Before link I had span in that place but I need to switch to link and here's the trouble - every time I click on .upvot

Rails Active Record: find in conjunction with :order and :group

Rails Active Record: find in conjunction with :order and :group

I have a structure something like this:class User has_many :dongles has_many :licences, :through => :donglesendclass Dongle has_many :licences belongs_to :userendclass Licence belongs_to :dongleendHowever, time passes and the user even

c: catch a segfault in exec() which was run in a child process

c: catch a segfault in exec() which was run in a child process

EDIT:I am trying to write a simple smoketest, where all options and reasonable parameters are tested.I used popen() to execute the program that should be tested.Using this approach does not work, because if the process dies with a signal (S

Meteor.js - temporarily prevent a template from re-rendering (disable reactivity)

Meteor.js - temporarily prevent a template from re-rendering (disable reactivity)

I have a page in my app with a list of Projects the user is working on.When they want to add a new project, I show a modal form to get the name of the project.If they click 'OK' I create the project and redirect to /project/[new project id]

python: change sys.stdout print to custom print function

python: change sys.stdout print to custom print function

Im trying to understand how to create a custom print function.(using python 2.7) import sysclass CustomPrint(): def __init__(self): self.old_stdout=sys.stdout #save stdout def write(self, text): sys.stdout = self.old_std

QueryStringBinder for List[String]

QueryStringBinder for List[String]

Using Play 2.0.1 I defined the following route:GET /demo/list controllers.Demos.listDemos(page: Int ?= 0, orderBy: Int ?= 1, nameFilter: String ?= "", versionFilter: Long ?= -1, tagFilter: List[String] ?= Nil)But I get this error on compil

Getting data into a partial view or layout using MVC

Getting data into a partial view or layout using MVC

I want to display information about the logged in user (username, company name, number of notifications, etc) in the layout and/or partial views. These will be common on every page. Is there a trick for getting this data to them, or is it

Calculation of percentage of group count(*)

Calculation of percentage of group count(*)

Select * from Namelist;Name AgeSathish 25Sathish 65Sathish 55Sathish 45Sathish 35Jana 55Jana 25Jana 10Bala 55Bala 26How to get Percentage value for given format;Name Count PercentegeSathish 5

Manually changing username in Asp.Net Membership

Manually changing username in Asp.Net Membership

I am able to change a username by directly accessing the asp.net membership user tables. However, the old username is preserved in a new row and assigned a new UserID automatically by asp.net. How do I stop that from happening?EDIT: only

BackgroundWorker multithread access to form

BackgroundWorker multithread access to form

I am using 5 BackgroundWorker objects running at the same time for a certain purpose, and all of them have to change the same label. How do I do that?How do I modify the form from more than one thread then? And how do i do it in case i want

Determine if a network share exists before mounting

Determine if a network share exists before mounting

I'm working on a tool to automatically mount network volumes based on what wireless network the user is connected to. Mounting the volume is easy:NSURL *volumeURL = /* The URL to the network volume */// Attempt to mount the volumeFSVolumeRe