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Python exit commands - why so many and when should each be used?
It seems that python supports many different commands to stop script execution. The choices I've found are: quit() , exit() , sys.exit() , os._exit()
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How to get the current loop index when using Iterator?
I am using an Iterator to iterate through a collection
and I want to get the current element's index.
12 Answers
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python NameError: global name '__file__' is not defined
...ive shell.
Python Shell doesn't detect current file path in __file__ and it's related to your filepath in which you added this line
So you should write this line os.path.join(os.path.dirname(__file__)) in file.py. and then run python file.py, It works because it takes your filepath.
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Can I store images in MySQL [duplicate]
I'm trying to develop a website where users upload their images as part of registration. I want it that for each image, there should be a thumb created with PHP (which is not that difficult). I want to save the thumbs (since they are very small) in the database and I use MySQL. (I don't want to save...
Android: How to stretch an image to the screen width while maintaining aspect ratio?
...an image (of unknown size, but which is always roughly square) and display it so that it fills the screen horizontally, and stretches vertically to maintain the aspect ratio of the image, on any screen size. Here is my (non-working) code. It stretches the image horizontally, but not vertically, so i...
How can I match on an attribute that contains a certain string?
...:
//div[contains(@class, 'atag') and contains(@class ,'btag')]
However, it will also find partial matches like class="catag bobtag".
If you don't want partial matches, see bobince's answer below.
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In C++, is it still bad practice to return a vector from a function?
Short version: It's common to return large objects—such as vectors/arrays—in many programming languages. Is this style now acceptable in C++0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination?
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Immutable vs Unmodifiable collection
...ther code may still have access to. So while you can't make any changes to it if you only have a reference to the unmodifiable collection, you can't rely on the contents not changing.
An immutable collection guarantees that nothing can change the collection any more. If it wraps a modifiable collec...
Error: free(): invalid next size (fast):
...is strange error I'm getting? I'm compiling C++ using g++ on Ubuntu 10.10. It pops up randomly when I run the executable (maybe 2 times in 8 hours, with 10 compiles an hour). However, if I make clean and recompile it goes away most of the time.
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Calling a function when ng-repeat has finished
...ally a "on ng repeat finished rendering" handler. I am able to detect when it is done but I can't figure out how to trigger a function from it.
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