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Django DB Settings 'Improperly Configured' Error
... In PyCharm the place to do this is Run | Edit Configurations | (e.g. Unittests in project) | Configuration | Environment | Environment variables: DJANGO_SETTINGS_MODULE=(project directory name).settings
– Bob Stein
May 4 '15 at 10:48
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Listing only directories using ls in Bash?
... NB. 3 was noticeably slower than the others for me. In the directory I tested: 1 .012s, 2 .016s, 3 .055s, 4 .021s.
– isomorphismes
Jul 30 '13 at 1:35
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How can I check if a directory exists in a Bash shell script?
...
Instead of testing for both the directory (-d) and the symlink (-L), it's easier just to append a slash to the variable, like if [ -d "${THING:+$THING/}" ]. A directory won't mind the extra slash. A file will evaluate to false. Empty wi...
Differences between C++ string == and compare()?
... are relevant differences. Although I'm glad Bo Persson shows that the two tests will definitely return the same value. !s.compare(t) and s == t will return the same value, but the compare function provides more information than s == t, and s == t is more readable when you don't care how the strings...
Command line progress bar in Java
...ersion>
</dependency>
Usage:
ProgressBar pb = new ProgressBar("Test", 100); // name, initial max
// Use ProgressBar("Test", 100, ProgressBarStyle.ASCII) if you want ASCII output style
pb.start(); // the progress bar starts timing
// Or you could combine these two lines like this:
// P...
Exporting functions from a DLL with dllexport
..."C" removes the decoration so that instead of :
__declspec(dllexport) int Test(void) --> dumpbin : ?Test@@YaHXZ
you obtain a symbol name undecorated:
extern "C" __declspec(dllexport) int Test(void) --> dumpbin : Test
However the _stdcall ( = macro WINAP...
How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
...operties of those objects.
Given the object you specified above:
> db.test.insert({"id": "test_object", "some_key": {"param1": "val1", "param2": "val2", "param3": "val3"}})
WriteResult({ "nInserted" : 1 })
We can update just some_key.param2 and some_key.param3:
> db.test.findAndModify({
....
load and execute order of scripts
...ers (or mal-conforming browsers) whose behavior you would probably have to test to determine.
A quote from the HTML5 spec:
Then, the first of the following options that describes the situation
must be followed:
If the element has a src attribute, and the element has a defer
attribute, ...
Count immediate child div elements using jQuery
...$('#foo').children().size() for better performance.
I've created a jsperf test to see the speed difference and the children() method beaten the child selector (#foo > div) approach by at least 60% in Chrome (canary build v15) 20-30% in Firefox (v4).
By the way, needless to say, these two approa...
Subscript and Superscript a String in Android
...script from string.xml file try this:
string resource:
<string name="test_string">X&lt;sup&gt;3&lt;/sup&gt;</string>
if you want the superscript to be smaller:
<string name="test_string">X&lt;sup&gt;&lt;small&gt;3&lt;/small&gt;&lt;/...