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What is the python keyword “with” used for? [duplicate]
...ceptions are thrown. It provides 'syntactic sugar' for try/finally blocks.
From Python Docs:
The with statement clarifies code that previously would use try...finally blocks to ensure that clean-up code is executed. In this section, I’ll discuss the statement as it will commonly be used. In the n...
How do I download a tarball from GitHub using cURL?
I am trying to download a tarball from GitHub using cURL , but it does not seem to be redirecting:
5 Answers
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How do I programmatically shut down an instance of ExpressJS for testing?
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Things have changed because the express server no longer inherits from the node http server. Fortunately, app.listen returns the server instance.
var server = app.listen(3000);
// listen for an event
var handler = function() {
server.close();
};
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In Python, using argparse, allow only positive integers
...nt('foo', type=check_positive)
This is basically just an adapted example from the perfect_square function in the docs on argparse.
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What's “P=NP?”, and why is it such a famous question? [closed]
...t is looking at a particular cell on the tape. Depending on what it reads from that cell, it can write a new symbol into that cell, move the tape one cell forward or backward, and go into a different state. This is called a state transition. Amazingly enough, by carefully constructing states and ...
Why does the 260 character path length limit exist in Windows?
...null] = 260. One could assume that 256 is a reasonable fixed string length from the DOS days. And going back to the DOS APIs we realize that the system tracked the current path per drive, and we have 26 (32 with symbols) maximum drives (and current directories).
The INT 0x21 AH=0x47 says “This fu...
How do I format XML in Notepad++?
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if you cant find XML Tools under Plugins, intall it from Plugins > Plugins Manager > Show Plugins Manager
– ala
Apr 3 '12 at 1:56
31
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Why would adding a method add an ambiguous call, if it wouldn't be involved in the ambiguity
...eneric method. 2 is worse than 3. So 2 cannot be the winner.
To be chosen from a set of multiple applicable candidates a candidate must be (1) unbeaten, (2) beat at least one other candidate, and (3) be the unique candidate that has the first two properties. Candidate three is beaten by no other ca...
Skip callbacks on Factory Girl and Rspec
... to run only on some occasions while testing. How can I skip/run callbacks from a factory?
16 Answers
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document.getElementById vs jQuery $()
...ject and is equivalent to $('#id').
You can get the underlying DOM object from a jQuery object by writing $('#id')[0].
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