Shell function for automatically cd-ing into the source directory of any python module much like how you cd in the shell

cdpy.sh

# Put this in /etc/profile.d/cdpy.sh or copy the function into ~/.bashrc
# Change to the source directory of just about any python module to RTFS
#
# (c) 2011 Jeff Schroeder <jeffschroeder@computer.org> released as GPLv2
cdpy() {
    module="$1"
    [ -z "$module" ] && return 1
    dir=$(python -c "
import os
try:
    import $module
    print os.path.dirname(${module}.__file__)
except ImportError:
    pass
")

if [ -d "$dir" ]; then
    cd "$dir"
    # cd to the real directory when PYTHONPATH uses symlinks
    cd $(pwd -P)
else
    echo "ERROR: No directory or module $module doesn't exist" >&2
    return 1
fi
}