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Python: How to create a unique file name?
I have a python web form with two options - File upload and textarea . I need to take the values from each and pass them to another command-line program. I can easily pass the file name with file upload options, but I am not sure how to pass the value of the textarea.
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Pick any kind of file via an Intent in Android
...new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("file/*");
startActivityForResult(intent, PICKFILE_REQUEST_CODE);
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Can hash tables really be O(1)?
It seems to be common knowledge that hash tables can achieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations that come to mind:
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I'm getting Key error in python
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edited Jun 14 '17 at 9:01
maxkoryukov
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How do I use Assert to verify that an exception has been thrown?
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For "Visual Studio Team Test" it appears you apply the ExpectedException attribute to the test's method.
Sample from the documentation here: A Unit Testing Walkthrough with Visual Studio Team Test
[TestMethod]
[ExpectedException(typeof(ArgumentException...
echo that outputs to stderr
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You could do this, which facilitates reading:
>&2 echo "error"
>&2 copies file descriptor #2 to file descriptor #1. Therefore, after this redirection is performed, both file descriptors will refer to the same file: the one file descriptor...
D Programming Language in the real world? [closed]
...e out there using D for real world applications? If so, what are you using it for? I can't seem to find anything big on the web written in D.
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Handling specific errors in JavaScript (think exceptions)
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To create custom exceptions, you can inherit from the Error object:
function SpecificError () {
}
SpecificError.prototype = new Error();
// ...
try {
throw new SpecificError;
} catch (e) {
if (e instanceof SpecificError) {
// specific error
} else {
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Difference between >>> and >>
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>> is arithmetic shift right, >>> is logical shift right.
In an arithmetic shift, the sign bit is extended to preserve the signedness of the number.
For example: -2 represented in 8 bits would be 11111110 (because the mo...
Disabling browser print options (headers, footers, margins) from page?
...s question asked in a couple of different ways on SO and several other websites, but most of them are either too specific or out-of-date. I'm hoping someone can provide a definitive answer here without pandering to speculation.
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