Change directory to definition of specified python module

cdp.sh

# Put it in your .bashrc or .bash_profile and do cdp <python module name>
# to get in the directory where the module is defined. This work:

# USAGE:
# ~ $ cdp os
# /usr/lib/python2.7 $
# ~ $ cdp os.path
# /usr/lib/python2.7 $
# It also works if a virtual environment is active.

cdp () {
    cd "$(python -c "import os.path as _, ${1}; \
            print(_.dirname(_.realpath(${1}.__file__[:-1])))"
        )"
}