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How to use `subprocess` command with pipes
I want to use subprocess.check_output() with ps -A | grep 'process_name' .
I tried various solutions but so far nothing worked. Can someone guide me how to do it?
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Javascript: best Singleton pattern [duplicate]
...lution found:
http://code.google.com/p/jslibs/wiki/JavascriptTips#Singleton_pattern
function MySingletonClass () {
if (arguments.callee._singletonInstance) {
return arguments.callee._singletonInstance;
}
arguments.callee._singletonInstance = this;
this.Foo = function () {
// ...
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How to Load an Assembly to AppDomain with all references recursively?
...another domain.
class ProxyObject : MarshalByRefObject
{
private Type _type;
private Object _object;
public void InstantiateObject(string AssemblyPath, string typeName, object[] args)
{
assembly = Assembly.LoadFrom(AppDomain.CurrentDomain.BaseDirectory + AssemblyPath); //Lo...
Find a private field with Reflection?
...can do it just like with a property:
FieldInfo fi = typeof(Foo).GetField("_bar", BindingFlags.NonPublic | BindingFlags.Instance);
if (fi.GetCustomAttributes(typeof(SomeAttribute)) != null)
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How does free know how much to free?
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FYI, for example BSD has malloc_size() to reliably access the block size from an malloc()ed pointer. But there's no reliable, portable way.
– laalto
Oct 5 '09 at 7:53
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Python, remove all non-alphabet chars from string
...]', re.MULTILINE)
st = 'abcdefghijklmnopqrstuvwxyz123456789!@#$%^&*()-=_+'
""", number = 1000000)
print(t0)
#Try with join method on filter
t0 = timeit.timeit("""
s = ''.join(filter(str.isalnum, st))
""", setup = """
st = 'abcdefghijklmnopqrstuvwxyz123456789!@#$%^&*()-=_+'
""",
number = 10...
记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist
禁用以后，磁盘上还保留着这些交换文件，它们已经没用了，也可以删掉：
sudo rm /private/var/vm/swapfile*
如果要重新启用虚拟内存的话，可以执行这条命令：
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How to change the font on the TextView?
...thing like:
public class CustomFontsLoader {
public static final int FONT_NAME_1 = 0;
public static final int FONT_NAME_2 = 1;
public static final int FONT_NAME_3 = 2;
private static final int NUM_OF_CUSTOM_FONTS = 3;
private static boolean fontsLoaded = false;
private static Typeface[] f...
Python set to list
...k that you didn't overwrite list by accident:
>>> assert list == __builtins__.list
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Get raw POST body in Python Flask regardless of Content-Type header
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Use request.get_data() to get the raw data, regardless of content type. The data is cached and you can subsequently access request.data, request.json, request.form at will.
If you access request.data first, it will call get_data with an ar...