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open() in Python does not create a file if it doesn't exist
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830
You should use open with the w+ mode:
file = open('myfile.dat', 'w+')
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How do I check if a variable exists in a list in BASH
...tains() {
[[ $1 =~ (^|[[:space:]])$2($|[[:space:]]) ]] && exit(0) || exit(1)
}
to use it:
contains aList anItem
echo $? # 0： match, 1: failed
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How to count objects in PowerShell?
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206
This will get you count:
get-alias | measure
You can work with the result as with object:
$...
Setting the zoom level for a MKMapView
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201
I found myself a solution, which is very simple and does the trick. Use MKCoordinateRegionMakeW...
Entity Framework 4 / POCO - Where to start? [closed]
...disadvantages of a POCO approach.
http://blogs.msdn.com/b/adonet/archive/2009/05/21/poco-in-the-entity-framework-part-1-the-experience.aspx
http://blogs.msdn.com/b/adonet/archive/2009/05/28/poco-in-the-entity-framework-part-2-complex-types-deferred-loading-and-explicit-loading.aspx
http://blogs.m...
Java String to SHA1
...String byteArrayToHexString(byte[] b) {
String result = "";
for (int i=0; i < b.length; i++) {
result +=
Integer.toString( ( b[i] & 0xff ) + 0x100, 16).substring( 1 );
}
return result;
}
BTW, you may get more compact representation using Base64. Apache Commons Codec ...
Removing transforms in SVG files
... TylerH
18.1k1212 gold badges6161 silver badges8080 bronze badges
answered Jun 12 '14 at 8:43
Serge SeletskyySerge Seletskyy
1...
How to update npm
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190
This will update npm using npm itself:
sudo npm install npm -g
If you are stuck, try sudo npm...
Hide/Show Column in an HTML Table
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answered Jan 19 '09 at 14:16
bobincebobince
484k9999 gold badges611611 silver badges797797 bronze badges
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Android emulator and virtualbox cannot run at same time
...eat option :P
– Richard de Wit
Nov 20 '15 at 11:46
4
This solution #@%!'s due to the fact that i ...