Takes in a string without wrapping corresponding to a paragraph,
       and returns a version of that string wrapped to be at most 80
       characters in length on each line.
       If indent is given, ensures each line is indented to that number
       of spaces.

def doc_paragraph(s, indent=0):
    '''Takes in a string without wrapping corresponding to a paragraph,
       and returns a version of that string wrapped to be at most 80
       characters in length on each line.
       If indent is given, ensures each line is indented to that number
       of spaces.
    '''
    return '\n'.join([' '*indent + l for l in wrap(s, width=80-indent)])