I did not use it because it was an unverified python script with a bunch of dependencies, as a rule I generally do not like executing untrusted code without at least a basic review.
As you mentioned, the Perl script was 100 lines and was easier at that moment in time to integrate than to review the python.
Of course once the python client has been reviewed perhaps it would be a more general solution.
The perl script written by the user in the article is about 100 lines of code. Doesn't seem like a lot of glue...
Another nice thing that Transifex provides which is not described in the blog is the Transifex client[1]. I wonder why he didn't use it.
[1]http://support.transifex.com/customer/portal/articles/960804...