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Python: Best way to add to sys.path relative to the current running script
...rectory (e.g., setup.py), then os.path.dirname(__file__) will be the empty string. For this and similar concerns raised by John Jiang, ekhumoro's more general-purpose solution is strongly preferable.
– Cecil Curry
Oct 16 '19 at 6:02
...
Can I protect against SQL injection by escaping single-quote and surrounding user input with single-
...taking user input and escaping any single quotes and surrounding the whole string with single quotes. Here's the code:
18 A...
Execution of Python code with -m option or not
...east the possibility of a package, so the __package__ variable is set to a string value; in the above demonstration it is set to 'foo.bar', for plain modules not inside a package it is set to an empty string.
As for the __main__ module, Python imports scripts being run as it would import regular mod...
Instance attribute attribute_name defined outside __init__
...ion has the merit to avoid another warning caused when you declare self.my_string:str = None => "Expected type 'str' got None instead. Am curious if str() takes more memory than None, and why this solution is less pythonic if it avoids an IDE warning...
– Nono London
...
In Scala, what exactly does 'val a: A = _' (underscore) mean?
...
val a: A = _ is a compile error. For example:
scala> val a: String = _
<console>:1: error: unbound placeholder parameter
val a: String = _
^
What does work is var a: A = _ (note var instead of val). As Chuck says in his answer, this initialises th...
URL encoding in Android
...ode the entire URL, only parts of it that come from "unreliable sources".
String query = URLEncoder.encode("apples oranges", "utf-8");
String url = "http://stackoverflow.com/search?q=" + query;
Alternatively, you can use Strings.urlEncode(String str) of DroidParts that doesn't throw checked excep...
What does extern inline do?
... StackOverflow)
#ifdef __cplusplus
#include <cstdio>
#include <cstring>
#else
#include <stdio.h>
#include <string.h>
#endif
//=========== MACRO MAGIC BEGINS ============
//Trim full file path
#define __SFILE__ (strrchr(__FILE__,'/') ? strrchr(__FILE__,'/')+1 : __FILE__...
Datepicker: How to popup datepicker when click on edittext
...the XML file:
<EditText
android:id="@+id/Birthday"
custom:font="@string/font_avenir_book"
android:clickable="true"
android:editable="false"
android:hint="@string/birthday"/>
Now in Java File:
final Calendar myCalendar = Calendar.getInstance();
EditText edittext= (EditText) ...
what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
...
using the json gem when parsing the json string you can pass in the symbolize_names option. See here: http://flori.github.com/json/doc/index.html (look under parse)
eg:
>> s ="{\"akey\":\"one\",\"bkey\":\"two\"}"
>> JSON.parse(s,:symbolize_names => ...
Functional programming - is immutability expensive? [closed]
...ject QSortExample {
// Imperative mutable quicksort
def swap(xs: Array[String])(a: Int, b: Int) {
val t = xs(a); xs(a) = xs(b); xs(b) = t
}
def muQSort(xs: Array[String])(l: Int = 0, r: Int = xs.length-1) {
val pivot = xs((l+r)/2)
var a = l
var b = r
while (a <= b) {
...