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What are some good Python ORM solutions? [closed]
...imply about choosing a Python ORM; not about automatically-generated admin interfaces or other framework components.
– Carl Meyer
Feb 23 '09 at 1:55
8
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Where to store global constants in an iOS application?
...
There's two issues I ran into with this solution. First, when I used #decalare, I got a compile error saying "invalid preprocessing directive declare". So I changed it to #define instead. The other problem is using the constant. I wanted to create an...
Useful GCC flags for C
...
Several of the -f code generation options are interesting:
The -ftrapv function will cause the program to abort on signed integer overflow (formally "undefined behaviour" in C).
-fverbose-asm is useful if you're compiling with -S to examine the assembly output - it add...
super() raises “TypeError: must be type, not classobj” for new-style class
...super() cannot be used with an old-style class".
However, the important point is that the correct test for "is this a new-style instance (i.e. object)?" is
>>> class OldStyle: pass
>>> instance = OldStyle()
>>> issubclass(instance.__class__, object)
False
and not (as i...
Why doesn't std::queue::pop return value.?
... this scenario (with a naive/made up pop implementation, to ilustrate my point):
template<class T>
class queue {
T* elements;
std::size_t top_position;
// stuff here
T pop()
{
auto x = elements[top_position];
// TODO: call destructor for elements[top_positi...
How to get complete month name from DateTime
... receive "MMMM" as a response, probably you are getting the month and then converting it to a string of defined format.
DateTime.Now.Month.ToString("MMMM")
will output "MMMM"
DateTime.Now.ToString("MMMM")
will output the month name
...
Android - Spacing between CheckBox and text
...DisplayMetrics().density;
checkBox.setPadding(checkBox.getPaddingLeft() + (int)(10.0f * scale + 0.5f),
checkBox.getPaddingTop(),
checkBox.getPaddingRight(),
checkBox.getPaddingBottom());
This gives you the following, where the green line is the increase in padding. This is...
When is “i += x” different from “i = i + x” in Python?
...s is why
i = 1
i += 1
seems to increment i. In reality, you get a new integer and assign it "on top of" i -- losing one reference to the old integer. In this case, i += 1 is exactly the same as i = i + 1. But, with most mutable objects, it's a different story:
As a concrete example:
a = [1,...
How can I tell jackson to ignore a property for which I don't have control over the source code?
...
You can use Jackson Mixins. For example:
class YourClass {
public int ignoreThis() { return 0; }
}
With this Mixin
abstract class MixIn {
@JsonIgnore abstract int ignoreThis(); // we don't need it!
}
With this:
objectMapper.getSerializationConfig().addMixInAnnotations(YourClas...
Execute another jar in a Java program
...lic class Test{
public static void main(String []args){
System.out.println("Hello from Test");
}
}
Use Process class and it's methods,
public class Exec
{
public static void main(String []args) throws Exception
{
Process ps=Runtime.getRuntime().exec(new String[]{"java","-ja...