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How do I get my Python program to sleep for 50 milliseconds?
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Might be interesting to know though that 'the function [time.sleep(secs)] sleeps at least secs' since Python 3.5 according to the documentation.
– Elias Strehle
Oct 30 '19 at 14:11
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This Row already belongs to another table error when trying to add rows?
...that are the same as in "dt"
DataColumn dcID = new DataColumn("ID", typeof(int));
DataColumn dcName = new DataColumn("Name", typeof(string));
dtSpecificOrders.Columns.Add(dtID);
dtSpecificOrders.Columns.Add(dcName);
DataRow[] orderRows = dt.Select("CustomerID = 2");
foreach (DataRow dr in orderRow...
Java RegEx meta character (.) and ordinary dot?
... case of character classes, place them in positions where they can't be misinterpreted).
Needlessly escaping other characters may work, but some regex engines will treat this as syntax errors, for example \_ will cause an error in .NET.
Some others will lead to false results, for example \< i...
Find duplicate lines in a file and count how many time each line was duplicated?
...' '\n' < yourfile | sort | uniq -d -c
^--space char
Basically: convert all space characters to linebreaks, then sort the tranlsated output and feed that to uniq and count duplicate lines.
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Disable soft keyboard on NumberPicker
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After reading through the com/android/internal/widget/NumberPicker.java source code i got to the following solution:
// Hide soft keyboard on NumberPickers by overwriting the OnFocusChangeListener
OnFocusChangeListener fcl = new OnFocusChangeListener() {
pub...
.htaccess redirect all pages to new domain
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I've used for my Wordpress blog this as .htaccess. It converts http://www.blah.example/asad, http://blah.example/asad, http://www.blah.example2/asad etc, to http://blah.example/asad
Thanks to all other answers I figured this out.
<IfModule mod_rewrite.c>
RewriteEngine On
R...
Pretty graphs and charts in Python [closed]
...])
alt text http://i40.tinypic.com/2j677tl.jpg
Note: the image has been converted to jpg by the image host.
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edited May 29 '09 at 13:52
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Android中Java和JavaScript交互 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Android中Java和JavaScript交互interaction-between-java-and-javascript-in-androidAndroid提供了一个很强大的WebView控件用来处理Web网页，而在网页中，JavaScript又是一个很举足轻重的脚本。本文将介绍如何实现Java代码和Javascript代码的相互调用。如...
Transposing a NumPy array
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You can convert an existing vector into a matrix by wrapping it in an extra set of square brackets...
from numpy import *
v=array([5,4]) ## create a numpy vector
array([v]).T ## transpose a vector into a matrix
numpy also has a ma...
Include another JSP file
...place where the JSP include directive is used. Then the source JSP page is converted into a java servlet class. The included file can be a static resource or a JSP page. Generally, JSP include directive is used to include header banners and footers.
Syntax for include a jsp file:
<%@ include f...