``dropcols.py`` is a Python module and program
that removes (or conversely, extracts)
selected columns from a delimited text file, such as a CSV file. It is analogous
to the *nix "cut" program, except that it works on CSV files and allows columns
to be selected by name (regular expressions) in addition to by number. Either the
columns to keep, or the columns to remove, or both, can be specified.
TODO: Brief introduction on what you do with files - including link to relevant help section.