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how to change any data type into a string in python
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x = str(something)
Examples:
>>> str(1)
'1'
>>> str(1.0)
'1.0'
>>> str([])
'[]'
>>> str({})
'{}'
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From the documentation:
Return a string containing a nicely printable representation of an object. For strings, this returns the string itself. The dif...
How do you Force Garbage Collection from the Shell?
...this via the free jmxterm program.
Fire it up like so:
java -jar jmxterm-1.0-alpha-4-uber.jar
From there, you can connect to a host and trigger GC:
$>open host:jmxport
#Connection to host:jmxport is opened
$>bean java.lang:type=Memory
#bean is set to java.lang:type=Memory
$>run gc
#cal...
Python unittests in Jenkins?
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py.test --junitxml results.xml tests.py
results.xml:
<?xml version="1.0" encoding="utf-8"?>
<testsuite errors="0" failures="1" name="pytest" skips="1" tests="2" time="0.097">
<testcase classname="tests.SimpleTest" name="test_fail" time="0.000301837921143">
<failu...
getting the screen density programmatically in android?
...sources().getDisplayMetrics().density;
This will give you:
0.75 - ldpi
1.0 - mdpi
1.5 - hdpi
2.0 - xhdpi
3.0 - xxhdpi
4.0 - xxxhdpi
ref: density
ref 2
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What is the difference between '/' and '//' when used for division?
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// implements "floor division", regardless of your type. So
1.0/2.0 will give 0.5, but both 1/2, 1//2 and 1.0//2.0 will give 0.
See https://docs.python.org/whatsnew/2.2.html#pep-238-changing-the-division-operator for details
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Difference between Mutable objects and Immutable objects [duplicate]
...Point( 0, 0 );
System.out.println( myPoint );
myPoint.setLocation( 1.0, 0.0 );
System.out.println( myPoint );
String myString = new String( "old String" );
System.out.println( myString );
myString.replaceAll( "old", "new" );
System.out.println( myString );
The output i...
Changing all files' extensions in a folder with one command on Windows
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NOTE: not for Windows
Using ren-1.0 the correct form is:
"ren *.*" "#2.jpg"
From man ren
The replacement pattern is another filename with embedded wildcard
indexes, each
of which consists of the character # followed by a digit from 1 to 9...
How to style UITextview to like Rounded Rect text field?
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iOS 7 - borderWidth of 1.0 and alpha of .2 works with the default style.
– Kalel Wade
May 21 '14 at 17:32
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How to reference style attributes from a drawable?
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Make an attribute for your drawable in attrs.xml.
<?xml version="1.0" encoding="utf-8"?>
<resources>
<!-- Attributes must be lowercase as we want to use them for drawables -->
<attr name="my_drawable" format="reference" />
</resources>
Add your drawable t...
How can I check the system version of Android?
Does anyone know how can I check the system version (e.g. 1.0 , 2.2 , etc.) programatically?
13 Answers
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