- useful glue-language
- prominent C API.
- It handles web applications, scientific applications, shell-scripting, data-processing.
- It's installed on virtually every OS X and Linux/BSD machine.
- job market is active and work tends to pay well.
- The contrib (open source, permissively licensed libraries) are robust, abundant and well-documented.
- The standard library is also.
- Python 3 unicode support + python 2.7 support via unicode_literals
- Support for deployment to Google's cloud, Amazon, Heroku
- Many prominent tech companies (facebook, google, dropbox) sponsor and release open source applications for python.
- Faster implementations such as Pypy (a speedier, pure-python implementation) and Pyston (LLVM implementation) are under active development
- REPL via bpython, ipython, ptpython is great
- Mature language (around since the 90's)
I could go on and on. You can't really miss with python, it's a "safe language" from a job perspective, but also superb should own your desires go to freelance, your own startup, etc.