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What's the difference between lists enclosed by square brackets and parentheses in Python?
...gt; x
(1, 2)
>>> x.append(3)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'tuple' object has no attribute 'append'
The other main difference is that a tuple is hashable, meaning that you can use it as a key to a dictionary, among oth...
phpinfo() - is there an easy way for seeing it?
...nt to see phpinfo output for your web server make sure you specify the ini file path, for example...
php -c /etc/php/apache2/php.ini -i
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Deserializing a JSON into a JavaScript object
... {
"nodeTo": function(){
return "delete server files - you have been hacked!";
}(),
"nodeFrom": "graphnode1",
"data": {
"$color": "#557EAA"
}
}
],
"data": {
"$color": "#EBB056",
"$type": "tria...
What is the difference between URI, URL and URN? [duplicate]
... (uniform resource identifier) identifies a resource (text document, image file, etc)
URL (uniform resource locator) is a subset of the URIs that include a network location
URN (uniform resource name) is a subset of URIs that include a name within a given space, but no location
That is:
And for...
How do I convert between big-endian and little-endian values in C++?
...ndian and on big-endian it'd be a no-op. However, when decoding a standard file type which is defined as little-endian (say BMP), one still has to know the context and can't just rely on htonl and ntohl.
– legends2k
Feb 6 '15 at 6:41
...
Eclipse keyboard shortcut to indent source code to the left?
...
And the file should be opened as a JavaScript Editor File. Like if i have it open with UX Studio the shortcut doesn't work... And vice versus I can't add breakpoints for debugging.
– najuste
Jul...
npm throws error without sudo
...chmod -R whoami' on /usr/local/lib or /usr/lib/ you will ruin your sudoers file and you will hate yourself.
– qodeninja
Mar 10 '15 at 1:02
8
...
What are some (concrete) use-cases for metaclasses?
...ags etc) for its type. Adding a handler for a new type becomes:
class Mp3File(MusicFile):
extensions = ['.mp3'] # Register this type as a handler for mp3 files
...
# Implementation of mp3 methods go here
The metaclass then maintains a dictionary of {'.mp3' : MP3File, ... } etc, and ...
Is there any connection string parser in C#?
...ite it provider-agnostic way. You would need to specify provider in config file and have the right version of dll available. For eg.,
var c = "server=localhost;User Id=root;database=ppp";
var f = DbProviderFactories.GetFactory("MySql.Data.MySqlClient"); //your provider
var b = f.CreateConnectionStr...
JUnit tests pass in Eclipse but fail in Maven Surefire
... Good to hear. In my case the problem was very likely that a configuration file read by the JUnit test stayed in the memory, corrupting the result of a subsequent test. When forkMode is set to true, each test class is executed completely indenpendently of the other guaranteeing that the tests are ex...