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.
![CSS vs. JS Animation: Which is Faster?]()
How is it possible that JavaScript-based animation has secretly always been as fast — or faster — than CSS transitions? And, how is it possible that Adobe and Google consistently release media-rich mobile sites that rival the performance of native apps?
This article serves as a point-by-point...
![Regular Expressions for the Rest of Us]()
Sooner or later you'll run across a regular expression. With their cryptic syntax, confusing documentation and massive learning curve, most developers settle for copying and pasting them from StackOverflow and hoping they work. But what if you could decode regular expressions and harness their power? In...
![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?
![MooTools Documentation Search Favelet]()
I'm going to share something with you that will blow your mind: I don't have the MooTools documentation memorized. I just don't. I visit the MooTools docs frequently to figure out the order of parameters of More classes and how best to use...
Every once in a while a package might not define either
VERSIONor__version__, since they’re conventions, not required. You can always get the installed version with pkg_resources, though:>>> import pkg_resources >>> pkg_resources.get_distribution("PIL").version '1.1.7'@James,
__version__is recommended by PEP 396