entr (http://entrproject.org/) provides a more friendly interface to inotify (and also supports *BSD & Mac OS X).
It makes it very easy to specify multiple files to watch (limited only by ulimit -n), takes the hassle out of dealing with files being replaced, and requires less bash syntax:
$ find . -name '*.py' | entr ./myfile.py
Thirty bash shell aliases tutorials and examples to improve your productivity under a RHEL, CentOS, Debian, MacOS X, *BSD, Ubuntu, and Unix like operating systems.