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Why can't I use a list as a dict key in python?
..., you can construct a key without a reference to the original.
If both of my suggestions work, then you have very different keys that return the same value, which is more than a little surprising. If only the original contents work, then your key will quickly go bad, since lists are made to be modi...
How is TeamViewer so fast?
...ly changes to the images, which essentially is analogous to video stream.
My best guess is some very efficient (and heavily specialized and optimized) motion compensation algorithm, because most of the actual change in generic desktop usage is linear movement of elements (scrolling text, moving win...
Python JSON serialize a Decimal object
... yield on the line with super(...),
# which wouldn't work (see my comment below), so...
return (str(o) for o in [o])
return super(DecimalEncoder, self).default(o)
Then use it like so:
json.dumps({'x': decimal.Decimal('5.5')}, cls=DecimalEncoder)
...
Clojure: reduce vs. apply
...tion of a blink of an eye -- in a lot of the common cases. What follows is my rationale for believing this.
+ is itself implemented in terms of reduce for the variable-arity case (more than 2 arguments). Indeed, this seems like an immensely sensible "default" way to go for any variable-arity, assoc...
How to Parse Command Line Arguments in C++? [duplicate]
... std::reverse(name.begin(),name.end());
std::cout << "My name (spelled backwards) is: " << name << std::endl;
}
else
std::cout << "My name is: " << name << std::endl;
} catch (TCLAP::ArgException &e) // catch any excep...
“ArrayAdapter requires the resource ID to be a TextView” xml problems
I am getting an error when trying to set my view to display the ListView for the file I want to display(text file). I am pretty sure it has something to do with the xml. I just want to display the information from this.file = fileop.ReadFileAsList("Installed_packages.txt"); . My code:
...
Ruby: How to post a file via HTTP as multipart/form-data?
...
The patch was quite specific to my script (quick-and-dirty), but have a look at it and maybe you can some up with a more generic approach (gist.github.com/974084)
– Matthias
May 16 '11 at 8:19
...
Pass all variables from one shell script to another?
...h also allows it to be combined like so:
export A=10
This also works in my sh (which happens to be bash, you can use echo $SHELL to check). But I don't believe that that's guaranteed to work in all sh, so best to play it safe and separate them.
Any variable you export in this way will be visibl...
how to configure apache server to talk to HTTPS backend server?
...
My SSLProxyEngine is on as well as ssl module is enabled still getting [Tue Nov 17 12:19:39.061224 2015] [proxy:error] [pid 8381:tid 140148180240128] AH00961: HTTPS: failed to enable ssl support for 182.161.73.67:443 (gum.cri...
Is gcc std::unordered_map implementation slow? If so - why?
...serts: 2531
get : 1565
So std::unordered_map in gcc-4.7 is broken (or my installation, which is an installation of gcc-4.7.0 on Ubuntu - and another installation which is gcc 4.7.1 on debian testing).
I will submit a bug report.. until then: DO NOT use std::unordered_map with gcc 4.7!
...