Get a Python Package Version
Part of maintaining a Django-based application like MDN's kuma is ensuring Python packages are up to date. I was recently testing an upgrade on a remote system and needed to ensure that a given Python package was at the version number it should be. Here's how I retrieved the package version:
import nose # Nose is a test utility. Replace with your desired package here.
nose.__version__
# Output: 0.3.1
The __version__
property returns the exact version number for a Python package. Some Python packages use a VERSION
property as well, but __version__
should be the most reliable.
![Responsive and Infinitely Scalable JS Animations]()
Back in late 2012 it was not easy to find open source projects using requestAnimationFrame()
- this is the hook that allows Javascript code to synchronize with a web browser's native paint loop. Animations using this method can run at 60 fps and deliver fantastic...
![Page Visibility API]()
One event that's always been lacking within the document is a signal for when the user is looking at a given tab, or another tab. When does the user switch off our site to look at something else? When do they come back?
![Create a Simple News Scroller Using Dojo]()
My journey into Dojo JavaScript has been exciting and I'm continuing to learn more as I port MooTools scripts to Dojo. My latest experiment is porting a simple new scroller from MooTools to Dojo. The code is very similar!
The HTML
The news items...
![Create a CSS Flipping Animation]()
CSS animations are a lot of fun; the beauty of them is that through many simple properties, you can create anything from an elegant fade in to a WTF-Pixar-would-be-proud effect. One CSS effect somewhere in between is the CSS flip effect, whereby there's...
Every once in a while a package might not define either
VERSION
or__version__
, since they’re conventions, not required. You can always get the installed version with pkg_resources, though:@James,
__version__
is recommended by PEP 396