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What is the best way to implement nested dictionaries?
...is a bad idea, don't do it. Instead, use a regular dictionary and use dict.setdefault where apropos, so when keys are missing under normal usage you get the expected KeyError. If you insist on getting this behavior, here's how to shoot yourself in the foot:
Implement __missing__ on a dict subclass t...
How to index into a dictionary?
...e especially concerned with the index of a certain value in a list or data set, you can just set the value of dictionary to that Index!:
Just watch:
list = ['a', 'b', 'c']
dictionary = {}
counter = 0
for i in list:
dictionary[i] = counter
counter += 1
print(dictionary) # dictionary = {'a':0...
How fast is D compared to C++?
...that the same seed be used for each iteration of C++, while not so for D?
Setup
I have tweaked the original D source (dubbed scalar.d) to make it portable between platforms. This only involved changing the type of the numbers used to access and modify the size of arrays.
After this, I made the fo...
Django: Get list of model fields?
I've defined a User class which (ultimately) inherits from models.Model . I want to get a list of all the fields defined for this model. For example, phone_number = CharField(max_length=20) . Basically, I want to retrieve anything that inherits from the Field class.
...
How to increment a pointer address and pointer's value?
... editor after snippets, if snippets enabled
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Escaping HTML strings with jQuery
...
Since you're using jQuery, you can just set the element's text property:
// before:
// <div class="someClass">text</div>
var someHtmlString = "<script>alert('hi!');</script>";
// set a DIV's text:
$("div.someClass").text(someHtmlString);
/...
How can I start an interactive console for Perl?
...
@mklement0 There's a cpan setting to download and build prerequisite modules automatically. You might need to turn that setting on. Alternatively, the zero-config cpanminus application may be a better option.
– Starfish
...
How to use shared memory with Linux in C
...
int result = lseek(mmapFd, size - 1, SEEK_SET);
if (result == -1)
{ ...
How to read from standard input in the console?
...p;ln)
If this still doesn't work, your culprit might be some weird system settings or a buggy IDE.
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Android get current Locale, not default
...tatically at runtime for your application process from the system property settings, so it will represent the Locale selected on that device when the application was launched. Typically, this is fine, but it does mean that if the user changes their Locale in settings after your application process ...