kivi | Javascript library

You can solve it using a trie

Whenever you get a string, just traverse your tree and eventually add any leaf (if you can't traverse more)

The problem is that when you call placeLines() inside the build() method, the height of MyRectangle has not yet been set, so its value is still the default 100. That results in the MyLine instances being placed at y values of 0, 33.33, and 66.66. A better way to position the lines is to bind placeLines() to the size of MyRectangle. You can do this by modifying your TestApp:

My next solution is in Python language, didn't notice at first that it is not a Python question, still my simple script can be used if you just need one-time conversion of your files.

You can use next code to re-convert your input json file to output json file while converting value from string to object.

Also before using next script you have to be sure that your input file is a valid json, this site can be used to find and fix syntax errors in input json file.

Try it online! (Look for output.json resulting file on left pane, also input.json).

Suppose the string is s = "Dairy-Milk Price:800 Qty: 1".

You can retrieve this value at the end with:

Several issues:

• You need to use Clock.schedule_once() to call your populate_tree_view() method. That will delay the call until the wid is is available in the ids. Put the Clock.schedule_once() in the build() method just before the return.
• To access wid you must use the ids dictionary (self.ids.wid.add_node(TreeViewLabel(text='My first item'))
• App is a class in the Kivy package. Redefining it as a Widget instance (or even as the name of your App class) is a bad idea. Just don't set App = to anything and don't use class App():.

In func you are storing the address of function local variables in l. So when you return l from the function, all the Smoothy* are now pointing to invalid memory.

To fix this, you can allocate memory for each pointer you add to l, like this:

The Window title is overwritten by the App title. You can set that title using:

Don't call pygame.mixer.quit() and pygame.quit() in the event loop when a pygame.QUIT event occurs. When you call pygame.quit(), you can't use some pygame functions like pygame.display.update anymore because all modules have been uninitialized, and since the while loop is still running, this exception gets raised.

So just remove the pygame.quit and pygame.mixer.quit() in the event loop and call them at the end of the program (as you already do).

Actually, you don't even have to call these functions and can just let the program finish as any other program. I think pygame.quit is only needed to close the window if you run your game with the IDLE IDE (and maybe with other tkinter based applications).

The problem is that you use the original image to create the Player.mask. The resulting mask covers all four poses of the character, so even if only one of the sprite sheet frames is visible, the complete original image is used for the collision detection. Your mask looks like the green area in this picture:

You should also use the rect (i.e. the rect.topleft coords) as the blit position, because it is used for the collision detection as well (to find the location of the mask).

I've got a fixed, shortened version of your program in which I've changed a few things to show you how I would solve the problem. First of all, I load the sprite sheet and cut it into several subsurfaces, then I assign the first surface/image to the self.image attribute of the Player. This image can be used to create the rect and the mask.

In the update method I increment the frame_index and assign the current image to self.image in order to animate the sprite. BTW, it would be a good idea to create separate masks for every image and swap them as well during the animation. (I'm just using the first mask here, since the animation frames are so similar.)

Note that if you give your sprites an image and a rect attribute, you can just call all_sprites.update(DS) to blit all sprite images at their corresponding rects.