A Python script that allows your terminal to snow (pypi.python.org)

Works fine for me. http://d.pr/i/iFKI

I'm using iTerm2, zsh and python3

What error did you get?

How recent are your utilities? I tried the bash version, had unexpected results - and discovered while investigating that Apple ships older versions of many CLI utilities.

E.g., under stock Mavericks bash, the command

echo $BASH_VERSION

returns 3.2.51(1)-release, while current bash is 4.2

I'm looking into homebrew as a means of getting up-to-date CLI tools.

EDIT: Added homebrew using instructions on brew.sh, it managed all dependencies. Ran brew doctor, then brew install bash, edited /etc/shells as suggested, updated Terminal startup preferences (could just as easily have used chsh, 6 of one...), all was well. Quick and easy, painless.

Standard OS X terminal, seems to work just fine for me. The --stack option running in fullscreen mode is pretty nice.

Not quite as pretty as this, but the shell version of it is here:

https://gist.github.com/sontek/1505483

The python script also supports the snowflakes piling up with the --stack command.

Here is non-stacking version: http://asciinema.org/a/6911

Stacking version: http://asciinema.org/a/6912