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Python Logging (function name, file name, line number) using a single file
...you is the string formatting using a dict as the RHS of the % operator. "%(foo)s" % bar will be replaced by whatever the value of bar["foo"] is.
Finally, you can use some introspection tricks, similar to those used by pdb that can log more info:
def autolog(message):
"Automatically log the cur...
What is the difference between Python's list methods append and extend?
...the end of my_list as a single entry on the list.
>>> my_list
['foo', 'bar']
>>> my_list.append('baz')
>>> my_list
['foo', 'bar', 'baz']
So keep in mind that a list is an object. If you append another list onto a list, the first list will be a single object at the end ...
Type converting slices of interfaces
...n: https://github.com/golang/go/wiki/InterfaceSlice
var dataSlice []int = foo()
var interfaceSlice []interface{} = make([]interface{}, len(dataSlice))
for i, d := range dataSlice {
interfaceSlice[i] = d
}
share
...
What is a Manifest in Scala and when do you need it?
...nted to treat a List[String] differently from other types of a List:
def foo[T](x: List[T])(implicit m: Manifest[T]) = {
if (m <:< manifest[String])
println("Hey, this list is full of strings")
else
println("Non-stringy list")
}
foo(List("one", "two")) // Hey, this l...
Modulo operator with negative values [duplicate]
...imizing divide-by-power-of-two operations as shifts. Under the old rules, foo /= 16 could be written as asr [dword foo],4. Under the new rules, the optimal representation requires many more instructions [perhaps mov eax,[foo] / mov ebx,eax, asr eax,31 / lsr eax,28 / add eax,ebx / asr eax,4 / mov [...
What does %w(array) mean?
...
%w(foo bar) is a shortcut for ["foo", "bar"]. Meaning it's a notation to write an array of strings separated by spaces instead of commas and without quotes around them. You can find a list of ways of writing literals in zenspide...
Java8: Why is it forbidden to define a default method for a method from java.lang.Object
...ltiple inheritance.
Further, imagine you are writing this class:
class Foo implements com.libraryA.Bar, com.libraryB.Moo {
// Implementation of Foo, that does NOT override equals
}
The Foo writer looks at the supertypes, sees no implementation of equals, and concludes that to get referenc...
How to create arguments for a Dapper query dynamically
...ffer a full example here.
string query = "SELECT * FROM MyTableName WHERE Foo = @Foo AND Bar = @Bar";
Dictionary<string, object> dictionary = new Dictionary<string, object>();
dictionary.Add("@Foo", "foo");
dictionary.Add("@Bar", "bar");
var results = connection.Query<MyTableName&g...
PEP 8, why no spaces around '=' in keyword argument or a default parameter value?
...rgument. So consider this:
func(1, 2, axis='x', angle=90, size=450, name='foo bar')
over this:
func(1, 2, axis = 'x', angle = 90, size = 450, name = 'foo bar')
Also, it doesn't make much sense to use variables as default values. Perhaps some constant variables (which aren't really constants) a...
In laymans terms, what does 'static' mean in Java? [duplicate]
... don't need to create an instance of the class to access it.
public class Foo {
public static void doStuff(){
// does stuff
}
}
So, instead of creating an instance of Foo and then calling doStuff like this:
Foo f = new Foo();
f.doStuff();
You just call the method directly again...