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What does “The APR based Apache Tomcat Native library was not found” mean?
...ound on the java.library.path"
The library referred to is bundled into an OS specific dll (tcnative-1.dll) loaded via JNI. It allows tomcat to use OS functionalities not provided in the Java Runtime (such as sendfile, epoll, OpenSSL, system status, etc.). Tomcat will run just fine without it, but f...
How do I prevent Android taking a screenshot when my app goes to the background?
...I'm currently building has the requirement that the app has to prevent the OS to take a screenshot of the app when it's being pushed into the background for security reasons. This way it won't be able to see the last active screen when switching between apps.
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What's the difference between using CGFloat and float?
... required to make your app 64-bit clean and try running it as such, since most Macs now have 64-bit CPUs and Snow Leopard is fully 64-bit, including the kernel and user applications. Apple's 64-bit Transition Guide for Cocoa is a useful resource.
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Having Django serve downloadable files
I want users on the site to be able to download files whose paths are obscured so they cannot be directly downloaded.
15 An...
Django DB Settings 'Improperly Configured' Error
...gs module you use)
Set DJANGO_SETTINGS_MODULE environment variable in your OS to mysite.settings
(This is removed in Django 1.6) Use setup_environ in the python interpreter:
from django.core.management import setup_environ
from mysite import settings
setup_environ(settings)
Naturally, the first...
How Do You Clear The IRB Console?
...
On Mac OS X or Linux you can use Ctrl + L to clear the IRB screen.
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Using the Android Application class to persist data
...ass does not have the same life-cycle (i.e. it is, for all intents and purposes, always instantiated). Does it make sense to store the state information inside of the application class and then reference it from the Activity, or is that generally not the "acceptable" method due to memory constraint...
How to list active / open connections in Oracle?
... substr(b.username,1,10) username,
-- b.server,
substr(b.osuser,1,8) os_user,
substr(b.program,1,30) program
from v$session b, v$process a
where
b.paddr = a.addr
and type='USER'
order by spid;
shar...
How to correct TypeError: Unicode-objects must be encoded before hashing?
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To store the password (PY3):
import hashlib, os
password_salt = os.urandom(32).hex()
password = '12345'
hash = hashlib.sha512()
hash.update(('%s%s' % (password_salt, password)).encode('utf-8'))
password_hash = hash.hexdigest()
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How to get screen dimensions as pixels in Android
.... Therefore I need to get the screen width and screen height and then set position:
40 Answers
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